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NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

January, 1994 to January, 2020

Index includes 3657 messages. Sorted reverse-alphabetically by author.

                    
Re: Earliest Crescent Moon VisibilityGary LaPook27 Jan 2020, 17:30
Re: Navigation devices available now on ebay.Gary LaPook27 Jan 2020, 05:02
Re: Navigation devices available now on ebay.Gary LaPook25 Jan 2020, 23:17
Navigation devices available now on ebay.Gary LaPook25 Jan 2020, 07:05
Re: No DR position. How can you get an accurate celestial fix?Gary LaPook23 Jan 2020, 19:26
Re: No DR position. How can you get an accurate celestial fix?Gary LaPook21 Jan 2020, 19:17
GPS jammingGary LaPook16 Jan 2020, 08:20
Re: A strange addition to a sextantGary LaPook4 Jan 2020, 21:42
A strange addition to a sextantGary LaPook4 Jan 2020, 19:14
Re: Correcting for the movement of an observer: a plausible explanation?Gary LaPook1 Jan 2020, 01:08
Re: Radium Infused Bubble SextantGary LaPook28 Dec 2019, 23:39
Re: Correcting for the movement of an observer: a plausible explanation?Gary LaPook28 Dec 2019, 23:37
Re: Correcting for the movement of an observer: a plausible explanation?Gary LaPook28 Dec 2019, 23:25
Re: HO SeriesGary LaPook27 Dec 2019, 06:09
Re: A-10 Sextant RestorationGary LaPook27 Dec 2019, 05:59
Re: HO SeriesGary LaPook26 Dec 2019, 23:35
Re: Radium Infused Bubble SextantGary LaPook25 Dec 2019, 21:23
Re: 2020 Nautical Almanac Altitude corrections for moon.Gary LaPook20 Dec 2019, 20:40
Re: 2020 Nautical Almanac Altitude corrections for moon.Gary LaPook20 Dec 2019, 20:11
Re: 2020 Nautical Almanac Altitude corrections for moon.Gary LaPook20 Dec 2019, 18:20
Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.Gary LaPook16 Dec 2019, 18:16
Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.Gary LaPook15 Dec 2019, 19:32
Re: Latitude by noon Sun sightGary LaPook3 Dec 2019, 19:13
Re: Latitude by noon Sun sightGary LaPook3 Dec 2019, 19:05
Re: Starmaster slide rule on ebayGary LaPook29 Nov 2019, 04:11
Re: Median versus Mean AveragingGary LaPook29 Oct 2019, 19:15
Re: Expedition AmeliaGary LaPook27 Oct 2019, 13:02
Re: Expedition AmeliaGary LaPook27 Oct 2019, 12:58
Re: Buy or build a modern Bygrave slide ruleGary LaPook16 Oct 2019, 05:36
Re: Buy or build a modern Bygrave slide ruleGary LaPook15 Oct 2019, 23:17
Re: Buy or build a modern Bygrave slide ruleGary LaPook15 Oct 2019, 17:37
Re: Relearning CelNav and Lunars for AntarcticaGary LaPook11 Oct 2019, 03:34
Re: Celestial Navigation in the MoviesGary LaPook9 Oct 2019, 06:58
Re: Celestial Navigation in the MoviesGary LaPook7 Oct 2019, 23:46
Re: Celestial Navigation in the MoviesGary LaPook7 Oct 2019, 04:24
Re: Celestial Navigation in the MoviesGary LaPook6 Oct 2019, 04:58
Re: Near-pole CN? Transverse Mercator?Gary LaPook3 Oct 2019, 17:31
Re: Near-pole CN? Transverse Mercator?Gary LaPook3 Oct 2019, 17:03
Re: Near-pole CN? Transverse Mercator?Gary LaPook3 Oct 2019, 16:57
Re: "no plotting sheet required" - an interesting find in an old bookGary LaPook3 Oct 2019, 06:29
Re: Near-pole CN? Transverse Mercator?Gary LaPook2 Oct 2019, 22:17
Re: Experience of using a hand-held bubble sextant in a light aircraftGary LaPook30 Sep 2019, 06:53
Re: Experience of using a hand-held bubble sextant in a light aircraftGary LaPook29 Sep 2019, 19:13
Re: Kollsman periscopic sextant mountGary LaPook28 Sep 2019, 17:20
Re: Experience of using a hand-held bubble sextant in a light aircraftGary LaPook28 Sep 2019, 17:19
Re: Kollsman periscopic sextant mountGary LaPook4 Sep 2019, 05:25
Re: Zero-Altitude ShotGary LaPook4 Sep 2019, 05:23
Re: Kollsman Periscopic Bubble AdjustGary LaPook7 Aug 2019, 12:07
Re: Kollsman Periscopic Bubble AdjustGary LaPook7 Aug 2019, 11:50
Re: Kollsman Periscopic Bubble AdjustGary LaPook7 Aug 2019, 05:41
Re: Kollsman Periscopic Bubble AdjustGary LaPook6 Aug 2019, 18:12
Re: Kollsman Periscopic Bubble AdjustGary LaPook6 Aug 2019, 01:08
Re: Kollsman Periscopic Bubble AdjustGary LaPook6 Aug 2019, 00:55
Re: Parallel Sailing questionGary LaPook1 Aug 2019, 17:08
Re: Home made artificial horizonGary LaPook17 Jul 2019, 02:24
Re: We need a backup to GPSGary LaPook17 Jul 2019, 02:19
We need a backup to GPSGary LaPook15 Jul 2019, 23:07
Re: Finding stars in daylightGary LaPook14 Jul 2019, 00:17
Re: Finding stars in daylightGary LaPook13 Jul 2019, 04:55
Re: CP-300/U USAF Star FinderGary LaPook30 Jun 2019, 17:17
Re: CP-300/U USAF Star FinderGary LaPook30 Jun 2019, 04:39
Re: CP-300/U USAF Star FinderGary LaPook29 Jun 2019, 07:32
Re: How to round?Gary LaPook13 Jun 2019, 05:18
Re: Early Air Navigation with RDFGary LaPook4 Jun 2019, 22:35
Re: Early Air Navigation with RDFGary LaPook4 Jun 2019, 22:29
Re: Northern Limits of Magnetic Compass UsefulnessGary LaPook4 Jun 2019, 22:19
Bygrave sliderule for saleGary LaPook25 Mar 2019, 21:16
What level of english skills is needed for safe navigation?Gary LaPook28 Feb 2019, 18:31
Re: Magnetic variation changing faster than anticipatedGary LaPook28 Feb 2019, 17:51
Re: Magnetic variation changing faster than anticipatedGary LaPook28 Feb 2019, 09:05
Re: Magnetic variation changing faster than anticipatedGary LaPook28 Feb 2019, 08:22
Re: Magnetic variation changing faster than anticipatedGary LaPook26 Feb 2019, 23:06
Re: Magnetic variation changing faster than anticipatedGary LaPook26 Feb 2019, 22:53
Re: First trans-Atlantic Flights?Gary LaPook14 Feb 2019, 19:29
Re: Time zone sign conventionsGary LaPook11 Feb 2019, 21:01
Re: Examples of cocked hat far from equilateralGary LaPook4 Feb 2019, 18:40
Re: Northern Limits of Magnetic Compass UsefulnessGary LaPook2 Feb 2019, 20:49
Re: Sir John Franklin's artificial horizonGary LaPook31 Jan 2019, 18:03
Sir John Franklin's artificial horizonGary LaPook31 Jan 2019, 09:36
Re: Gyro sextantGary LaPook24 Jan 2019, 21:13
Live AIS trackingGary LaPook23 Jan 2019, 07:27
Re: Why no airtraffic over Antarctica?Gary LaPook21 Jan 2019, 00:19
Re: Why no airtraffic over Antarctica?Gary LaPook20 Jan 2019, 05:44
Re: Earth's Magnetic North Pole is moving more and more quicklyGary LaPook13 Jan 2019, 20:44
Re: Moby Dick TalesGary LaPook10 Jan 2019, 09:39
Re: Radio Time signalsGary LaPook9 Jan 2019, 19:15
Re: It's 2019...Gary LaPook2 Jan 2019, 07:25
Re: It's 2019...Gary LaPook1 Jan 2019, 19:19
Re: Jargon, terminology , words' meanings, etc.Gary LaPook2 Dec 2018, 18:30
Re: Using "hack" as a verbGary LaPook24 Nov 2018, 19:39
Re: SNO-T "night" sight tube?Gary LaPook21 Nov 2018, 05:30
Avoiding the symmedian (and other) pointsGary LaPook5 Nov 2018, 21:43
Re: GPS jamming causes drones to crashGary LaPook4 Nov 2018, 03:15
Re: Simpler than latitude and longitude?Gary LaPook4 Nov 2018, 02:45
Re: Navigation Conference, Mystic Seaport, 2019?Gary LaPook4 Nov 2018, 02:32
Re: Logic of shadesGary LaPook31 Oct 2018, 04:51
Re: Pub.249 Epoch 2020 is available.Gary LaPook23 Oct 2018, 16:54
Re: Were there secret techniques in the 17th and 18th CenturyGary LaPook18 Oct 2018, 08:00
Re: Symmedian point -earliest reference in navigationGary LaPook16 Oct 2018, 18:27
Re: An Embarrassing ConundrumGary LaPook6 Oct 2018, 17:34
Re: GNSS is not immortalGary LaPook29 Sep 2018, 01:39
Re: Lindbergh-Weems Second-Setting WatchGary LaPook26 Sep 2018, 22:07
Re: Timekeeping in the post-WWV/post-HF worldGary LaPook25 Sep 2018, 18:18
Re: Timekeeping in the post-WWV/post-HF worldGary LaPook25 Sep 2018, 17:25
Re: Timekeeping in the post-WWV/post-HF worldGary LaPook25 Sep 2018, 17:13
Re: Timekeeping in the post-WWV/post-HF worldGary LaPook25 Sep 2018, 06:22
Re: Is Celestial Navigation really a backup to GPS Navigation?Gary LaPook19 Sep 2018, 23:27
Re: Is Celestial Navigation really a backup to GPS Navigation?Gary LaPook19 Sep 2018, 23:05
Re: Questions about Celestial NavigationGary LaPook18 Sep 2018, 21:46
Re: Is Celestial Navigation really a backup to GPS Navigation?Gary LaPook18 Sep 2018, 10:24
Re: Radio time signals disappearGary LaPook4 Sep 2018, 19:32
Re: 1870s navigationGary LaPook29 Aug 2018, 07:03
Re: 1870s navigationGary LaPook21 Aug 2018, 19:01
Re: Nautical AlmanacGary LaPook12 Aug 2018, 02:03
Re: 1870s navigationGary LaPook9 Aug 2018, 06:53
Re: 1870s navigationGary LaPook7 Aug 2018, 17:27
Re: 1870s navigationGary LaPook7 Aug 2018, 17:26
Re: Traditional navigation by slide ruleGary LaPook28 Jul 2018, 23:11
Re: Origins of civilian use of GPSGary LaPook23 Jul 2018, 05:50
Re: Better/easier GHA(Aries) formula?Gary LaPook18 Jul 2018, 06:47
Re: Negative v correctionGary LaPook5 Jul 2018, 19:18
Re: Year USNO launched Celestial Navigation Data webpageGary LaPook3 Jul 2018, 00:48
Re: What Three Words at seaGary LaPook30 Jun 2018, 19:58
Re: Gary LaPooks Flat BygraveGary LaPook25 Jun 2018, 07:30
Kollsman sextant with MOUNT now on ebay.Gary LaPook16 Jun 2018, 22:38
Re: Shortwave radio and the evolution of celestial navigationGary LaPook13 Jun 2018, 05:22
Re: Shortwave radio and the evolution of celestial navigationGary LaPook13 Jun 2018, 05:19
Re: Shortwave radio and the evolution of celestial navigationGary LaPook13 Jun 2018, 05:17
Re: Movie AdriftGary LaPook11 Jun 2018, 04:32
Re: How height affects sun altitudeGary LaPook5 Jun 2018, 22:06
Re: Ebay kollsman periscope sextantsGary LaPook5 Jun 2018, 07:52
Re: Mark 7 Knee-Mounted Plotting BoardGary LaPook11 May 2018, 06:04
Re: Use of Marine Sextants in AircraftGary LaPook9 May 2018, 17:31
Re: Use of Marine Sextants in AircraftGary LaPook8 May 2018, 21:15
Re: Use of Marine Sextants in AircraftGary LaPook8 May 2018, 21:03
Re: Mark 7 Knee-Mounted Plotting BoardGary LaPook2 May 2018, 17:57
Re: Mark 7 Knee-Mounted Plotting BoardGary LaPook2 May 2018, 08:44
Re: Mark 7 Knee-Mounted Plotting BoardGary LaPook2 May 2018, 07:52
Re: Mark 7 Knee-Mounted Plotting BoardGary LaPook2 May 2018, 07:40
Re: Celestial Navigation is so simpleGary LaPook28 Apr 2018, 16:39
Autonomous ships are coming.Gary LaPook24 Apr 2018, 17:20
Re: WWII bubble sextants and radiumGary LaPook17 Apr 2018, 00:16
Re: More accurate version of Pub 249 Vol 1 - is it needed?Gary LaPook14 Apr 2018, 05:42
Re: More accurate version of Pub 249 Vol 1 - is it needed?Gary LaPook13 Apr 2018, 16:22
Re: Flight Levels CelNav; 02/10/2018Gary LaPook13 Mar 2018, 07:53
Re: Flight Levels CelNav; 02/10/2018Gary LaPook13 Mar 2018, 07:27
Re: Erasing E6-B and Polhemus PlotsGary LaPook13 Mar 2018, 06:57
Re: An azimuth nomogram: what's under the hood?Gary LaPook12 Mar 2018, 22:11
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook12 Mar 2018, 22:09
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook12 Mar 2018, 21:27
Re: Polhemus in the Southern HemisphereGary LaPook6 Mar 2018, 09:05
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook5 Mar 2018, 06:07
Pyramid alignmentGary LaPook1 Mar 2018, 23:58
Re: Small zenith distance: a "bubble" sextant vs a Newtonian type sextant?Gary LaPook1 Mar 2018, 20:23
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook1 Mar 2018, 09:43
Re: Flight Levels CelNav; 02/10/2018Gary LaPook1 Mar 2018, 09:10
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook1 Mar 2018, 08:53
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook1 Mar 2018, 05:47
Re: Deriving the Bygrave equationsGary LaPook11 Feb 2018, 06:32
Re: Kollsman periscopic sextant mountGary LaPook9 Feb 2018, 07:56
Re: Read the vernier, get the noon latitudeGary LaPook8 Feb 2018, 18:57
Re: Latitude by law of cosinesGary LaPook6 Feb 2018, 21:07
Re: Read the vernier, get the noon latitudeGary LaPook6 Feb 2018, 21:04
Re: Read the vernier, get the noon latitudeGary LaPook6 Feb 2018, 20:16
Re: Mickey Mouse's dog is backGary LaPook30 Jan 2018, 07:07
Mickey Mouse's dog is backGary LaPook30 Jan 2018, 01:35
Re: Moon sight reductionGary LaPook25 Jan 2018, 21:51
Useful modifications to the Polhemus computerGary LaPook25 Jan 2018, 11:43
Re: GC Routes & Strings on GlobesGary LaPook23 Jan 2018, 08:10
Re: Some Link A12 Sextant QuestionsGary LaPook22 Jan 2018, 07:15
Re: Flight Levels CelNav: 01/10/2018Gary LaPook22 Jan 2018, 07:04
Re: Flight Levels CelNav; 11/10/2017Gary LaPook17 Jan 2018, 09:59
Re: Flight Levels CelNav; 11/10/2017Gary LaPook17 Jan 2018, 09:43
Re: USS Fitzgerald collision with container shipGary LaPook17 Jan 2018, 01:38
Re: SHA vs RAGary LaPook14 Jan 2018, 22:03
Re: Flight Levels CelNav; 11/10/2017Gary LaPook9 Jan 2018, 09:57
Re: Coriolis Acceleration -- A general caseGary LaPook8 Jan 2018, 23:10
Re: Article by Russell Porter on Latitude without instrumentsGary LaPook31 Dec 2017, 23:50
Re: Article by Russell Porter on Latitude without instrumentsGary LaPook31 Dec 2017, 21:11
Re: Polar Grid AirNav and Oceanic AirNavGary LaPook30 Dec 2017, 03:28
Re: Polar Grid AirNav and Oceanic AirNavGary LaPook30 Dec 2017, 03:26
Re: Heading/Speed Acceleration Error CardGary LaPook28 Dec 2017, 06:26
Re: Weems Star Altitude CurvesGary LaPook26 Dec 2017, 09:32
Re: Howland Island landfallGary LaPook22 Dec 2017, 09:32
Re: Latitude by two stars observed simultaneouslyGary LaPook21 Dec 2017, 23:52
Re: Latitude by two stars observed simultaneouslyGary LaPook21 Dec 2017, 20:17
Re: Unwarranted levels of precisionGary LaPook20 Dec 2017, 16:20
Re: Unwarranted levels of precisionGary LaPook20 Dec 2017, 06:15
Re: A noon fix inland with an peri-sextantGary LaPook20 Dec 2017, 02:26
Re: Unwarranted levels of precisionGary LaPook20 Dec 2017, 02:04
Unwarranted levels of precisionGary LaPook19 Dec 2017, 23:22
Re: Hello from a New MemberGary LaPook18 Dec 2017, 17:42
Re: Interesting Street SignGary LaPook18 Dec 2017, 03:37
Re: Pub. 249 and Pub. 229Gary LaPook16 Dec 2017, 18:42
Re: Pub 229Gary LaPook10 Dec 2017, 19:25
Re: Pub 229Gary LaPook10 Dec 2017, 10:43
Re: Pub 229Gary LaPook10 Dec 2017, 02:35
Re: Pub 229Gary LaPook10 Dec 2017, 00:29
Re: Pub 229Gary LaPook9 Dec 2017, 06:44
Re: Pub 229Gary LaPook9 Dec 2017, 02:35
Re: Pub 229Gary LaPook9 Dec 2017, 02:25
Re: Great Circle Initial Course Boston to Wellington?Gary LaPook2 Dec 2017, 00:12
Re: The trig scales on K & E 4070-3 and 4080-3Gary LaPook30 Nov 2017, 08:52
Re: Loran and other alternatives to GPSGary LaPook30 Nov 2017, 05:05
Re: Very nice discussion of "flight computers" - with excellent comments by Gary LaPookGary LaPook28 Nov 2017, 07:12
Re: Pub. 249 questionGary LaPook27 Nov 2017, 05:48
Re: Pub. 249 questionGary LaPook26 Nov 2017, 08:11
Re: Pub. 249 questionGary LaPook26 Nov 2017, 04:54
Re: Pub. 249 questionGary LaPook26 Nov 2017, 01:53
Re: Pub. 249 questionGary LaPook25 Nov 2017, 03:07
Re: Very nice discussion of "flight computers" - with excellent comments by Gary LaPookGary LaPook24 Nov 2017, 18:58
Re: Pub. 249 questionGary LaPook24 Nov 2017, 07:31
Re: Cocked Hat & the most probable positionGary LaPook23 Nov 2017, 22:15
Re: Cosine vs haversine formulasGary LaPook19 Nov 2017, 06:30
Re: "They got lost"Gary LaPook31 Oct 2017, 14:23
Re: Practice CN on cruise shipGary LaPook28 Oct 2017, 17:51
Re: Bringing the body downGary LaPook28 Oct 2017, 17:29
Re: "They got lost"Gary LaPook27 Oct 2017, 06:48
"They got lost"Gary LaPook27 Oct 2017, 05:48
Re: What time is it anyhow?Gary LaPook26 Oct 2017, 17:10
What time is it anyhow?Gary LaPook26 Oct 2017, 05:22
Re: Practice CN on cruise shipGary LaPook26 Oct 2017, 00:49
Re: What's "under the hood" of the Raft Book?Gary LaPook24 Oct 2017, 22:36
Re: Practice CN on cruise shipGary LaPook24 Oct 2017, 22:33
Re: Practice CN on cruise shipGary LaPook24 Oct 2017, 22:32
Re: Practice CN on cruise shipGary LaPook22 Oct 2017, 06:16
Re: What's "under the hood" of the Raft Book?Gary LaPook21 Oct 2017, 22:24
Re: Practice CN on cruise shipGary LaPook21 Oct 2017, 22:00
Re: Practice CN on cruise shipGary LaPook21 Oct 2017, 04:46
Polhemus computerGary LaPook10 Oct 2017, 18:39
ShackletonGary LaPook6 Oct 2017, 09:44
Re: The "Raft Book" by Harold Gatty - ?Gary LaPook5 Oct 2017, 22:24
Re: USS John S McCainGary LaPook28 Sep 2017, 08:24
Re: Quiz about the Southern CrossGary LaPook26 Sep 2017, 21:44
Re: Preparing the sky with Vol. 2 and 3 Pub. 249.Gary LaPook24 Sep 2017, 19:22
Re: Quiz about the Southern CrossGary LaPook23 Sep 2017, 23:15
Re: The Dunlap Sunrise Sunset ComputerGary LaPook20 Sep 2017, 15:40
Re: The Dunlap Sunrise Sunset ComputerGary LaPook20 Sep 2017, 04:57
Re: Varuna -- Abandoned due to Loss of PowerGary LaPook10 Sep 2017, 04:19
Re: "Totality" in OregonGary LaPook7 Sep 2017, 01:43
Re: No Nautical Almanac data during Aug 21st eclipseGary LaPook17 Aug 2017, 16:37
Re: What folks in various U.S. towns will see of the Aug 21 eclipseGary LaPook16 Aug 2017, 18:32
Re: Eclipse maps & solar semidiameterGary LaPook15 Aug 2017, 22:27
Re: History of HO249/AP3270Gary LaPook15 Aug 2017, 00:09
Re: History of HO249/AP3270Gary LaPook14 Aug 2017, 21:47
Re: GPS spoofing for realGary LaPook11 Aug 2017, 17:35
Re: GPS spoofing for realGary LaPook11 Aug 2017, 17:34
Re: Polhemus computerGary LaPook10 Aug 2017, 09:28
Re: Polhemus computerGary LaPook6 Aug 2017, 20:38
Re: Polhemus computerGary LaPook6 Aug 2017, 06:50
Re: Ode to Celestial NavigationGary LaPook6 Aug 2017, 04:10
Re: Ode to Celestial NavigationGary LaPook4 Aug 2017, 23:44
Re: Ode to Celestial NavigationGary LaPook1 Aug 2017, 06:21
Re: Miracle on the HudsonGary LaPook30 Jul 2017, 08:56
Re: Miracle on the HudsonGary LaPook30 Jul 2017, 08:53
Re: Miracle on the HudsonGary LaPook28 Jul 2017, 00:33
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook12 Jul 2017, 01:53
Re: Are we all doing our math correctly?Gary LaPook11 Jul 2017, 15:55
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook11 Jul 2017, 05:29
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook11 Jul 2017, 05:28
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook10 Jul 2017, 23:23
Re: Are we all doing our math correctly?Gary LaPook10 Jul 2017, 23:21
Are we all doing our math correctly?Gary LaPook10 Jul 2017, 21:11
Re: Things to take on a container ship voyageGary LaPook9 Jul 2017, 20:12
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook8 Jul 2017, 06:45
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook8 Jul 2017, 06:37
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook7 Jul 2017, 21:41
Re: Fairchild A-10A in practiceGary LaPook6 Jul 2017, 22:49
Re: Fairchild A-10A in practiceGary LaPook6 Jul 2017, 21:50
Re: Fairchild A-10A in practiceGary LaPook6 Jul 2017, 21:28
Re: Fairchild A-10A in practiceGary LaPook6 Jul 2017, 20:47
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook6 Jul 2017, 17:38
Re: Fairchild A-10A in practiceGary LaPook5 Jul 2017, 22:55
Re: Fairchild A-10Gary LaPook2 Jul 2017, 22:03
Re: Fairchild A-10Gary LaPook2 Jul 2017, 18:52
Re: Fairchild Model A-10Gary LaPook2 Jul 2017, 00:11
Re: Triangle of velocities solver?Gary LaPook29 Jun 2017, 04:05
Re: USS Fitzgerald collision with container shipGary LaPook26 Jun 2017, 19:48
Re: USS Fitzgerald collision with container shipGary LaPook26 Jun 2017, 17:55
Re: USS Fitzgerald collision with container shipGary LaPook25 Jun 2017, 16:16
Re: USS Fitzgerald collision with container shipGary LaPook24 Jun 2017, 04:01
Re: Bendix A7 octantGary LaPook24 Jun 2017, 01:55
Re: Bendix A7 octantGary LaPook23 Jun 2017, 23:25
Re: USS Fitzgerald collision with container shipGary LaPook20 Jun 2017, 23:10
Re: USS Fitzgerald collision with container shipGary LaPook20 Jun 2017, 17:06
Re: USS Fitzgerald collision with container shipGary LaPook20 Jun 2017, 16:50
Re: Point HondaGary LaPook15 Jun 2017, 06:17
Re: Failing to Use All the Navigational Inputs At Your DisposalGary LaPook9 Jun 2017, 07:49
Re: Example sights very near the North PoleGary LaPook6 Jun 2017, 21:05
Re: Example sights very near the North PoleGary LaPook6 Jun 2017, 20:58
Re: An "integrating averager": how does it work?Gary LaPook4 Jun 2017, 00:22
Re: WWII US Navy Ball Recording SextantGary LaPook28 May 2017, 21:51
Re: Admiralty Manual of Navigation Vol IIIGary LaPook4 May 2017, 19:15
Re: Gunther Rules for NavigationGary LaPook28 Apr 2017, 13:12
Re: Dangerously radioactive navigation instrumentsGary LaPook11 Apr 2017, 21:49
Re: Kollsman Sextant Mount - SportsModelGary LaPook4 Apr 2017, 17:30
Re: Kollsman Sextant Mount - SportsModelGary LaPook4 Apr 2017, 17:26
Re: Kollsman Sextant Mount - SportsModelGary LaPook4 Apr 2017, 00:55
Re: Accuracy of consumer-grade GPS/GLONASS nav.equipment?Gary LaPook3 Apr 2017, 21:18
Re: LopGary LaPook1 Apr 2017, 17:05
Re: V corrections?Gary LaPook28 Mar 2017, 15:57
Re: V corrections?Gary LaPook28 Mar 2017, 14:50
Re: V corrections?Gary LaPook28 Mar 2017, 14:48
Re: V corrections?Gary LaPook28 Mar 2017, 04:33
Re: AP3270 Table 5Gary LaPook26 Mar 2017, 16:21
Re: DeclinationGary LaPook26 Mar 2017, 16:16
Re: CelNav on a Cruise ShipGary LaPook21 Mar 2017, 17:57
Re: WWII bubble sextants and radiumGary LaPook21 Mar 2017, 09:00
Re: Learning celestial navigationGary LaPook18 Mar 2017, 20:54
Sight, site, citeGary LaPook18 Mar 2017, 01:08
Re: Learning celestial navigationGary LaPook18 Mar 2017, 01:03
Re: The perils of going to sea relying on a minimum of modern electronicsGary LaPook3 Mar 2017, 06:18
Re: Versions of Dreisonstok, H.O. 208Gary LaPook3 Mar 2017, 06:16
Re: Symmedian talkGary LaPook2 Mar 2017, 07:39
Re: Symmedian talkGary LaPook2 Mar 2017, 00:10
Re: The ultimate celestial navigation time pieceGary LaPook24 Feb 2017, 17:32
Re: One Assumed position or Six?Gary LaPook8 Feb 2017, 02:59
Re: One Assumed position or Six?Gary LaPook8 Feb 2017, 02:33
Re: Correct way to calculate time of LAN?Gary LaPook7 Feb 2017, 06:57
Re: Correct way to calculate time of LAN?Gary LaPook7 Feb 2017, 05:49
Re: Correct way to calculate time of LAN?Gary LaPook7 Feb 2017, 05:47
Re: The Running Fix on an EllipsoidGary LaPook5 Feb 2017, 20:57
Re: The Running Fix on an EllipsoidGary LaPook4 Feb 2017, 07:44
Re: Is there a doctor........I mean a navlist member on board?Gary LaPook2 Feb 2017, 17:50
Re: Hats off to everyone who can do this!Gary LaPook2 Feb 2017, 17:36
Re: Precession and NutationGary LaPook2 Feb 2017, 17:30
Re: Is there a doctor........I mean a navlist member on board?Gary LaPook1 Feb 2017, 18:05
Re: Precession and NutationGary LaPook1 Feb 2017, 01:17
Re: Precession and NutationGary LaPook31 Jan 2017, 17:20
Re: Precession and NutationGary LaPook31 Jan 2017, 17:14
Re: Precession and NutationGary LaPook31 Jan 2017, 17:02
Re: Is there a doctor........I mean a navlist member on board?Gary LaPook31 Jan 2017, 16:58
Re: Precession and NutationGary LaPook30 Jan 2017, 23:27
Re: An artificial horizon opportunity?Gary LaPook29 Jan 2017, 10:03
Re: STARS below ?? declination are never visible.Gary LaPook25 Jan 2017, 10:39
Re: Where are you most likely to be in the triangle?Gary LaPook22 Jan 2017, 02:41
Re: Where are you most likely to be in the triangle?Gary LaPook22 Jan 2017, 02:28
Re: Spaceship navigationGary LaPook16 Jan 2017, 07:13
Re: Spaceship navigationGary LaPook14 Jan 2017, 06:38
Spaceship navigationGary LaPook12 Jan 2017, 05:10
Re: Golden Globe Race NavigationGary LaPook6 Jan 2017, 09:58
Certaine Errors in Navigation by Edward Wright, 1599Gary LaPook6 Jan 2017, 09:18
Re: Time Zone DesignationsGary LaPook5 Jan 2017, 09:46
Re: Time Zone DesignationsGary LaPook5 Jan 2017, 09:10
Re: Time Zone DesignationsGary LaPook4 Jan 2017, 10:04
Re: Time Zone DesignationsGary LaPook4 Jan 2017, 07:51
Re: Showing a Mercator Projection is not a perspective projectionGary LaPook2 Jan 2017, 21:16
Re: Showing a Mercator Projection is not a perspective projectionGary LaPook2 Jan 2017, 07:30
Re: The Sun does not stop for anyoneGary LaPook31 Dec 2016, 07:01
Re: The Sun does not stop for anyoneGary LaPook31 Dec 2016, 06:24
Re: The Sun does not stop for anyoneGary LaPook31 Dec 2016, 05:29
Re: The Sun does not stop for anyoneGary LaPook31 Dec 2016, 05:19
Re: The Sun does not stop for anyoneGary LaPook31 Dec 2016, 05:15
Re: The Sun does not stop for anyoneGary LaPook30 Dec 2016, 20:10
Re: The Sun does not stop for anyoneGary LaPook30 Dec 2016, 19:59
Re: The Sun does not stop for anyoneGary LaPook30 Dec 2016, 17:15
Re: The Sun does not stop for anyoneGary LaPook30 Dec 2016, 17:06
Re: The Sun does not stop for anyoneGary LaPook30 Dec 2016, 08:14
Re: The Sun does not stop for anyoneGary LaPook29 Dec 2016, 20:16
Re: The Sun does not stop for anyoneGary LaPook29 Dec 2016, 08:19
Re: The Sun does not stop for anyoneGary LaPook29 Dec 2016, 07:40
Re: The Sun does not stop for anyoneGary LaPook28 Dec 2016, 10:35
Re: The Sun does not stop for anyoneGary LaPook28 Dec 2016, 09:56
Re: The Sun does not stop for anyoneGary LaPook27 Dec 2016, 11:20
Re: The Sun does not stop for anyoneGary LaPook27 Dec 2016, 10:58
Re: The Sun does not stop for anyoneGary LaPook27 Dec 2016, 08:14
Re: The Sun does not stop for anyoneGary LaPook27 Dec 2016, 06:14
Re: The Sun does not stop for anyoneGary LaPook26 Dec 2016, 20:12
Re: The Sun does not stop for anyoneGary LaPook26 Dec 2016, 19:51
Re: The Sun does not stop for anyoneGary LaPook26 Dec 2016, 19:20
Re: The Sun does not stop for anyoneGary LaPook26 Dec 2016, 18:59
Re: The Sun does not stop for anyoneGary LaPook25 Dec 2016, 09:46
Re: Personal Equation and Index ErrorGary LaPook21 Dec 2016, 19:04
Re: USNS Bowditch - also Slocum!Gary LaPook17 Dec 2016, 23:49
Re: USNS BowdtchGary LaPook16 Dec 2016, 18:26
USNS BowdtchGary LaPook16 Dec 2016, 18:09
Re: A Navlist member is getting an awardGary LaPook12 Dec 2016, 22:22
Re: The lie of the land: when map ma kers get it wrong �� in pictures Books The GuardianGary LaPook12 Dec 2016, 18:02
Re: Is Sextant a generic word?Gary LaPook10 Dec 2016, 17:24
Re: Is Sextant a generic word?Gary LaPook8 Dec 2016, 23:11
Re: Quicker Ex-Meridian Formula for Slide Rule or CalculatorGary LaPook5 Dec 2016, 18:40
Re: Quicker Ex-Meridian Formula for Slide Rule or CalculatorGary LaPook5 Dec 2016, 09:51
Re: Celestial Navigation in the MoviesGary LaPook4 Dec 2016, 09:42
Re: Windjammer SunlineGary LaPook3 Dec 2016, 06:55
Re: Celestial Navigation in the MoviesGary LaPook3 Dec 2016, 02:46
Re: Quicker Ex-Meridian Formula for Slide Rule or CalculatorGary LaPook2 Dec 2016, 01:55
Re: Kollsman periscopic sextant mountGary LaPook29 Nov 2016, 21:47
Re: Kollsman periscopic sextant mountGary LaPook29 Nov 2016, 21:22
Re: Great Circle Sailing ChartGary LaPook28 Nov 2016, 16:57
Re: Kollsman periscopic sextant mountGary LaPook28 Nov 2016, 16:46
Re: Kollsman periscopic sextant mountGary LaPook28 Nov 2016, 09:04
Re: Cellnav trained mariners and aviatorsGary LaPook28 Nov 2016, 09:00
Re: The flat BygraveGary LaPook25 Nov 2016, 19:22
Re: Celestial Pre-computation Form for PolhemusGary LaPook24 Nov 2016, 19:30
Re: The flat BygraveGary LaPook24 Nov 2016, 19:08
Re: Celestial Pre-computation Form for PolhemusGary LaPook24 Nov 2016, 07:20
Re: Nautical or Statute Miles for Air NavigationGary LaPook24 Nov 2016, 06:36
Re: Nautical or Statute Miles for Air NavigationGary LaPook24 Nov 2016, 06:29
Re: Celestial Pre-computation Form for PolhemusGary LaPook24 Nov 2016, 06:02
Re: Unless they're Vikings, old men can't navigateGary LaPook17 Nov 2016, 22:51
Re: "Super-Lune du siècle"Gary LaPook14 Nov 2016, 17:35
Re: Traditional navigation by slide ruleGary LaPook14 Nov 2016, 06:23
Re: Traditional navigation by slide ruleGary LaPook14 Nov 2016, 05:29
Re: Traditional navigation by slide ruleGary LaPook12 Nov 2016, 22:51
Re: Traditional navigation by slide ruleGary LaPook12 Nov 2016, 22:30
Re: Traditional navigation by slide ruleGary LaPook12 Nov 2016, 02:32
Re: Traditional navigation by slide ruleGary LaPook12 Nov 2016, 02:25
Re: Traditional navigation by slide ruleGary LaPook12 Nov 2016, 02:11
Re: Traditional navigation by slide ruleGary LaPook12 Nov 2016, 01:28
Re: Traditional navigation by slide ruleGary LaPook8 Nov 2016, 22:24
Re: Table 4 Suns GHA+Dec modifiedGary LaPook8 Nov 2016, 06:33
Re: Plotting a LOP properly: how to?Gary LaPook6 Nov 2016, 20:35
Re: Traditional navigation by slide ruleGary LaPook6 Nov 2016, 07:15
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook2 Nov 2016, 07:12
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook2 Nov 2016, 07:11
Re: Another round on the fate of Amelia Earhart in today's newsGary LaPook2 Nov 2016, 01:44
Re: Traditional navigation by slide ruleGary LaPook31 Oct 2016, 23:45
Re: Doing my homeworkGary LaPook31 Oct 2016, 23:41
Re: Doing my homeworkGary LaPook31 Oct 2016, 23:40
Re: Doing my homeworkGary LaPook31 Oct 2016, 17:05
Re: Traditional navigation by slide ruleGary LaPook31 Oct 2016, 16:50
Re: Kollsman periscopic sextant mountGary LaPook30 Oct 2016, 07:40
Re: Traditional navigation by slide ruleGary LaPook29 Oct 2016, 23:04
Re: Traditional navigation by slide ruleGary LaPook29 Oct 2016, 21:18
Re: Traditional navigation by slide ruleGary LaPook29 Oct 2016, 18:31
Re: Traditional navigation by slide ruleGary LaPook29 Oct 2016, 10:02
Re: Traditional navigation by slide ruleGary LaPook29 Oct 2016, 09:24
Re: Traditional navigation by slide ruleGary LaPook29 Oct 2016, 09:00
Re: Traditional navigation by slide ruleGary LaPook29 Oct 2016, 05:20
Re: Great Circle Course via calculator & HO 208Gary LaPook29 Oct 2016, 04:59
Re: Traditional navigation by slide ruleGary LaPook29 Oct 2016, 01:54
Re: Traditional navigation by slide ruleGary LaPook28 Oct 2016, 17:44
Re: Traditional navigation by slide ruleGary LaPook28 Oct 2016, 09:11
Re: Traditional navigation by slide ruleGary LaPook28 Oct 2016, 08:20
Re: Traditional navigation by slide ruleGary LaPook28 Oct 2016, 08:03
Re: Great Circle Course via calculator & HO 208Gary LaPook27 Oct 2016, 20:42
Re: Great Circle Course via calculator & HO 208Gary LaPook27 Oct 2016, 20:40
Re: Great Circle Course via calculator & HO 208Gary LaPook27 Oct 2016, 10:29
Re: Great Circle Course via calculator & HO 208Gary LaPook27 Oct 2016, 10:19
Re: Traditional navigation by slide ruleGary LaPook27 Oct 2016, 08:00
Re: Traditional navigation by slide ruleGary LaPook27 Oct 2016, 00:53
Re: Traditional navigation by slide ruleGary LaPook27 Oct 2016, 00:04
Re: Traditional navigation by slide ruleGary LaPook26 Oct 2016, 18:05
Re: Traditional navigation by slide ruleGary LaPook26 Oct 2016, 09:52
Re: Traditional navigation by slide ruleGary LaPook26 Oct 2016, 09:22
Re: Traditional navigation by slide ruleGary LaPook26 Oct 2016, 09:01
Re: Traditional navigation by slide ruleGary LaPook25 Oct 2016, 22:24
An interesting web site aboout space navigationGary LaPook22 Oct 2016, 20:48
Re: DIY planisphere: how to begin with it?Gary LaPook19 Oct 2016, 07:29
Re: V-Correction for Sun? Answer from UKHO...Gary LaPook18 Oct 2016, 07:31
Solar eclipse August 21, 2017Gary LaPook18 Oct 2016, 05:37
Accuracy of celestial navigationGary LaPook17 Oct 2016, 05:00
Re: V-Correction for Sun? Answer from UKHO...Gary LaPook16 Oct 2016, 20:08
Re: V-Correction for Sun? Answer from UKHO...Gary LaPook16 Oct 2016, 20:02
Re: V-Correction for Sun? Answer from UKHO...Gary LaPook16 Oct 2016, 09:19
Re: V-Correction for Sun? Answer from UKHO...Gary LaPook16 Oct 2016, 04:48
Re: V-Correction for Sun? Answer from UKHO...Gary LaPook16 Oct 2016, 04:25
Re: V-Correction for Sun? Answer from UKHO...Gary LaPook15 Oct 2016, 06:43
Re: V-Correction for Sun? Answer from UKHO...Gary LaPook13 Oct 2016, 18:46
An "Indiana Jones" momentGary LaPook10 Oct 2016, 22:32
Re: Great Circle Course via calculator & HO 208Gary LaPook6 Oct 2016, 21:26
Re: Great Circle Course via calculator & HO 208Gary LaPook6 Oct 2016, 21:21
Re: Great Circle Course via calculator & HO 208Gary LaPook5 Oct 2016, 17:26
Re: Great Circle Course via calculator & HO 208Gary LaPook5 Oct 2016, 17:01
Re: Great Circle Course via calculator & HO 208Gary LaPook4 Oct 2016, 04:51
Re: Great Circle Course via calculator & HO 208Gary LaPook3 Oct 2016, 09:56
Re: Great Circle Course via calculator & HO 208Gary LaPook1 Oct 2016, 16:14
Re: Speed of SunsetGary LaPook30 Sep 2016, 23:05
Re: Traditional navigation by slide ruleGary LaPook27 Sep 2016, 22:06
Re: Traditional navigation by slide ruleGary LaPook27 Sep 2016, 08:16
Re: Traditional navigation by slide ruleGary LaPook27 Sep 2016, 06:45
Re: Traditional navigation by slide ruleGary LaPook27 Sep 2016, 06:41
Re: Searching for the "article of George Huxtable on logarithmic computations"Gary LaPook24 Sep 2016, 07:35
Re: How far away can you see landGary LaPook24 Sep 2016, 07:23
Re: Sextant to go to MarsGary LaPook18 Sep 2016, 07:24
Sextant to go to MarsGary LaPook18 Sep 2016, 07:21
Re: A new way to record and time observationsGary LaPook17 Sep 2016, 16:07
Re: A new way to record and time observationsGary LaPook17 Sep 2016, 05:58
Re: A new way to record and time observationsGary LaPook17 Sep 2016, 05:41
A new way to record and time observationsGary LaPook17 Sep 2016, 05:38
Re: Radar in July 1937 or too much MD370 reporting?Gary LaPook13 Sep 2016, 20:36
Cruise ship destroys small boat marina with thrusters.Gary LaPook13 Sep 2016, 19:17
Re: Radar in July 1937 or too much MD370 reporting?Gary LaPook13 Sep 2016, 18:11
Re: Vernier Scale on Box SextantGary LaPook12 Sep 2016, 04:12
Re: Lose the war if it's cloudyGary LaPook10 Sep 2016, 11:09
Re: Lose the war if it's cloudyGary LaPook7 Sep 2016, 22:01
Re: Puzzled by Douglas Protractor InstructionsGary LaPook4 Sep 2016, 18:29
Re: Is there a way to produce Sight reduction tables for air navigationGary LaPook4 Sep 2016, 18:06
Re: Puzzled by Douglas Protractor InstructionsGary LaPook4 Sep 2016, 05:38
Re: Is there a way to produce Sight reduction tables for air navigationGary LaPook4 Sep 2016, 04:56
Re: Is there a way to produce Sight reduction tables for air navigationGary LaPook3 Sep 2016, 19:28
Re: Hughes Tables.Gary LaPook3 Sep 2016, 08:06
Re: Kollsman periscopic sextant mount AFNOA has 5 models of D-1Gary LaPook30 Aug 2016, 17:40
Current Ocean Navigator MagazineGary LaPook28 Aug 2016, 05:50
Re: GPS jamming concernsGary LaPook26 Aug 2016, 15:52
Re: GPS jamming concernsGary LaPook26 Aug 2016, 04:20
Re: GPS jamming concernsGary LaPook25 Aug 2016, 21:36
Re: Grumman AA-5Gary LaPook21 Aug 2016, 16:44
Re: Historical charts and mappingGary LaPook19 Aug 2016, 09:26
Re: WGS 84 and BVI ChartsGary LaPook16 Aug 2016, 17:14
Re: WGS 84 and BVI ChartsGary LaPook16 Aug 2016, 07:56
Re: WGS 84 and BVI ChartsGary LaPook13 Aug 2016, 23:20
Re: More bluster for the Year of StupidGary LaPook12 Aug 2016, 16:54
Re: More bluster for the Year of StupidGary LaPook12 Aug 2016, 00:39
Re: More bluster for the Year of StupidGary LaPook12 Aug 2016, 00:33
Re: GPS jamming concernsGary LaPook11 Aug 2016, 22:49
Re: Comments on Bygrave/MHR1 calculationsGary LaPook11 Aug 2016, 21:58
Re: Navy wig wagGary LaPook11 Aug 2016, 21:45
Re: Navy wig wagGary LaPook10 Aug 2016, 07:08
Re: GPS jamming concernsGary LaPook10 Aug 2016, 06:08
Re: GPS jamming concernsGary LaPook9 Aug 2016, 21:06
Re: GPS jamming concernsGary LaPook9 Aug 2016, 17:59
Re: GPS jamming concernsGary LaPook9 Aug 2016, 17:56
GPS jamming concernsGary LaPook8 Aug 2016, 19:33
Re: Comments on Bygrave/MHR1 calculationsGary LaPook8 Aug 2016, 18:51
Re: Comments on Bygrave/MHR1 calculationsGary LaPook8 Aug 2016, 18:48
Re: Comments on Bygrave/MHR1 calculationsGary LaPook8 Aug 2016, 08:44
Re: Were Short methods really Short?Gary LaPook6 Aug 2016, 03:56
Re: Comments on Bygrave/MHR1 calculationsGary LaPook5 Aug 2016, 07:46
Re: Comments on Bygrave/MHR1 calculationsGary LaPook5 Aug 2016, 07:43
Re: Were Short methods really Short?Gary LaPook4 Aug 2016, 07:43
Re: Were Short methods really Short?Gary LaPook4 Aug 2016, 07:09
Re: Were Short methods really Short?Gary LaPook3 Aug 2016, 04:14
Re: Museo Naval, MadridGary LaPook3 Aug 2016, 03:35
Re: Museo Naval, MadridGary LaPook3 Aug 2016, 03:33
Re: Working Model MHR1 SlideruleGary LaPook31 Jul 2016, 16:41
Re: The mathematics of tacking downwindGary LaPook29 Jul 2016, 23:28
Re: Practice Horizon BubbleGary LaPook29 Jul 2016, 09:31
Re: Practice Horizon BubbleGary LaPook29 Jul 2016, 09:28
Re: The mathematics of tacking downwindGary LaPook29 Jul 2016, 08:57
Re: HO 211 with Sadler methodGary LaPook27 Jul 2016, 18:38
Re: HO 211 with Sadler methodGary LaPook27 Jul 2016, 18:35
Re: HO 211 with Sadler methodGary LaPook27 Jul 2016, 09:55
Re: HO 211 with Sadler methodGary LaPook27 Jul 2016, 03:53
Re: 1984 Bowditch questionGary LaPook27 Jul 2016, 00:04
Re: Sextant accuracy and possibility of future improvementGary LaPook26 Jul 2016, 05:58
Re: AzimuthsGary LaPook6 Jul 2016, 17:54
Re: Weems - US Naval Inst. May 1927 - Rust's Azimuth DiagramGary LaPook4 Jul 2016, 19:11
Re: Not "zooming in" on GPS display leads to another incidentGary LaPook3 Jul 2016, 06:43
Re: Not "zooming in" on GPS display leads to another incidentGary LaPook3 Jul 2016, 06:40
Re: Not "zooming in" on GPS display leads to another incidentGary LaPook3 Jul 2016, 05:30
Re: AE and FN's plane?Gary LaPook3 Jul 2016, 05:14
Re: Not "zooming in" on GPS display leads to another incidentGary LaPook1 Jul 2016, 17:29
Not "zooming in" on GPS display leads to another incidentGary LaPook1 Jul 2016, 07:39
Re: Fred Noonan CriticizedGary LaPook23 Jun 2016, 11:54
Re: Fred Noonan CriticizedGary LaPook23 Jun 2016, 11:15
Re: Fred Noonan CriticizedGary LaPook23 Jun 2016, 05:18
Re: Fred Noonan CriticizedGary LaPook22 Jun 2016, 07:08
Re: Fred Noonan CriticizedGary LaPook22 Jun 2016, 07:01
Re: Intercept and distanceGary LaPook17 Jun 2016, 05:53
Navigation of B-47 bombersGary LaPook16 Jun 2016, 17:08
Re: Intercept and distanceGary LaPook16 Jun 2016, 16:26
Re: Neat video about LEM stellar alignment scopeGary LaPook8 Jun 2016, 08:55
Re: GPS outagesGary LaPook7 Jun 2016, 19:10
Re: Use for Prime Vertical (PV)Gary LaPook7 Jun 2016, 18:10
Re: Navigation - a state of mind?Gary LaPook4 Jun 2016, 21:15
Re: Navigation - a state of mind?Gary LaPook4 Jun 2016, 21:06
Re: The Length of a DayGary LaPook27 May 2016, 08:10
Re: Difference between HO 249 and USNO websiteGary LaPook17 May 2016, 17:44
Re: Difference between HO 249 and USNO websiteGary LaPook17 May 2016, 17:06
Re: Commercial Flight SunsetGary LaPook17 May 2016, 06:50
Celnav article in Ocean Navigator MagazineGary LaPook10 May 2016, 20:11
Re: SundialGary LaPook6 May 2016, 10:25
Re: The moons of Jupiter for Time or Position?Gary LaPook6 May 2016, 04:21
Re: More Coutinho QuestionsGary LaPook4 May 2016, 16:33
Re: Celestial position-finding on landGary LaPook3 May 2016, 07:01
Re: Celestial position-finding on landGary LaPook3 May 2016, 06:28
Re: SundialGary LaPook2 May 2016, 20:39
Re: SundialGary LaPook2 May 2016, 20:36
Bubble sextant developmentGary LaPook2 May 2016, 08:32
Re: The Observer’s Book on Astro-Navigation - Coutinho sextantGary LaPook2 May 2016, 08:26
Re: SundialGary LaPook30 Apr 2016, 18:20
Re: The Observer’s Book on Astro-NavigationGary LaPook30 Apr 2016, 16:32
Re: SundialGary LaPook30 Apr 2016, 16:10
SundialGary LaPook30 Apr 2016, 08:09
Re: A navigational featGary LaPook30 Apr 2016, 01:10
Re: A navigational featGary LaPook29 Apr 2016, 17:40
Re: NavList graphic bannerGary LaPook29 Apr 2016, 17:17
Re: Prose and Poetry and NavigationGary LaPook28 Apr 2016, 01:12
Re: Prose and Poetry and NavigationGary LaPook28 Apr 2016, 01:03
Re: Star finding techniquesGary LaPook22 Apr 2016, 07:23
Re: Monarch Butterfly NavigationGary LaPook20 Apr 2016, 05:31
Re: U-boat Celestial Navigation WWIIGary LaPook19 Apr 2016, 18:27
Re: U-boat Celestial Navigation WWIIGary LaPook12 Apr 2016, 19:46
Re: U-boat Celestial Navigation WWIIGary LaPook12 Apr 2016, 18:33
Re: U-boat Celestial Navigation WWIIGary LaPook12 Apr 2016, 18:19
Re: U-boat Celestial Navigation WWIIGary LaPook12 Apr 2016, 17:30
Re: U-boat Celestial Navigation WWIIGary LaPook12 Apr 2016, 17:05
Re: Slide rule for lunars?Gary LaPook4 Apr 2016, 14:58
Re: Advice on Box SextantGary LaPook3 Apr 2016, 21:48
Slide rule for lunars?Gary LaPook3 Apr 2016, 21:12
Re: Advice on Box SextantGary LaPook3 Apr 2016, 14:31
Re: Advice on Box SextantGary LaPook3 Apr 2016, 13:51
Re: Balloon SextantsGary LaPook28 Mar 2016, 09:11
Re: Latitude by PolarisGary LaPook27 Mar 2016, 12:58
Re: Thoughts on celestial presentations and learning.Gary LaPook23 Mar 2016, 08:11
Re: Model A-12 Link Bubble SextantGary LaPook22 Mar 2016, 21:01
Re: Model A-12 Link Bubble SextantGary LaPook22 Mar 2016, 20:59
Certaine Errors in NavigationGary LaPook22 Mar 2016, 07:54
Re: Compass CheckGary LaPook22 Mar 2016, 07:42
Re: Multiple suns in view on index correction checkGary LaPook22 Mar 2016, 06:46
Re: NYT Wave Pilot ArticletlyGary LaPook20 Mar 2016, 09:26
HelloGary LaPook10 Mar 2016, 05:02
GPS outagesGary LaPook8 Mar 2016, 09:26
Total solar eclipse on WednesdayGary LaPook7 Mar 2016, 18:18
Re: A One-Hour Presentation on Celestial NavigationGary LaPook3 Mar 2016, 18:59
Re: Scale a small area plotting sheet?Gary LaPook1 Mar 2016, 22:43
Re: Scale a small area plotting sheet?Gary LaPook1 Mar 2016, 22:41
Re: Scale a small area plotting sheet?Gary LaPook1 Mar 2016, 21:57
Re: Scale a small area plotting sheet?Gary LaPook1 Mar 2016, 19:52
Re: Scale a small area plotting sheet?Gary LaPook1 Mar 2016, 17:15
Re: Scale a small area plotting sheet?Gary LaPook29 Feb 2016, 08:19
Re: Sun sights at the Gulf of MexicoGary LaPook24 Feb 2016, 05:28
Re: What is this on this sextantGary LaPook23 Feb 2016, 22:58
Re: What is this on this sextantGary LaPook23 Feb 2016, 22:56
Re: What is this on this sextantGary LaPook23 Feb 2016, 22:42
Re: Henning Umland's long term almanac. Is it wrong?Gary LaPook23 Feb 2016, 20:46
Re: What is this on this sextantGary LaPook21 Feb 2016, 06:22
Re: "Dalton Dead Reckoning Computor" Type E-6BGary LaPook19 Feb 2016, 04:04
Polhemus computer available now on ebayGary LaPook14 Feb 2016, 20:01
Re: Best way to record time for solo sightsGary LaPook14 Feb 2016, 06:36
Re: Best way to record time for solo sightsGary LaPook13 Feb 2016, 20:53
Re: Dip from ShoreGary LaPook10 Feb 2016, 01:16
Re: Time of Sun & Moon rise and setGary LaPook6 Feb 2016, 09:47
Re: Time of Sun & Moon rise and setGary LaPook6 Feb 2016, 07:12
Re: Time of Sun & Moon rise and setGary LaPook4 Feb 2016, 19:24
Re: Kollsman periscopic sextant mount CorrectionGary LaPook4 Feb 2016, 19:21
Re: Star identification puzzleGary LaPook31 Jan 2016, 18:32
Re: Kollsman periscopic sextant mount CorrectionGary LaPook28 Jan 2016, 06:42
Re: Kollsman periscopic sextant mount CorrectionGary LaPook28 Jan 2016, 06:12
Re: Kollsman periscopic sextant mount CorrectionGary LaPook27 Jan 2016, 19:21
Re: Planning a fix with >45 degrees intersection inLOPsGary LaPook26 Jan 2016, 02:01
Re: Duttons Navigation and Piloting 12th editionGary LaPook25 Jan 2016, 08:13
Re: Spherical triangle split by right trianglesGary LaPook23 Jan 2016, 00:09
Re: Traditional navigation by slide ruleGary LaPook22 Jan 2016, 04:23
Re: Traditional navigation by slide ruleGary LaPook21 Jan 2016, 12:23
Re: Traditional navigation by slide ruleGary LaPook21 Jan 2016, 06:15
Re: Traditional navigation by slide ruleGary LaPook20 Jan 2016, 21:39
Re: Cryptic Slide Rule FormulaeGary LaPook20 Jan 2016, 21:32
Re: Traditional navigation by slide ruleGary LaPook20 Jan 2016, 19:28
Re: Kollsman periscopic sextant mountGary LaPook20 Jan 2016, 05:27
Re: Traditional navigation by slide ruleGary LaPook20 Jan 2016, 00:40
Re: Traditional navigation by slide ruleGary LaPook19 Jan 2016, 21:35
Re: Traditional navigation by slide ruleGary LaPook19 Jan 2016, 21:05
Re: Traditional navigation by slide ruleGary LaPook17 Jan 2016, 00:07
Re: B-52 navigator in New York TimesGary LaPook16 Jan 2016, 23:25
Re: Borrowed BygraveGary LaPook16 Jan 2016, 11:44
Re: Borrowed BygraveGary LaPook16 Jan 2016, 11:29
Re: Borrowed BygraveGary LaPook15 Jan 2016, 18:26
Re: Great Circle Sailing ChartGary LaPook15 Jan 2016, 18:20
Re: Borrowed BygraveGary LaPook15 Jan 2016, 09:49
Re: Borrowed BygraveGary LaPook15 Jan 2016, 09:36
Re: Borrowed BygraveGary LaPook15 Jan 2016, 09:21
Re: Borrowed BygraveGary LaPook15 Jan 2016, 08:56
Re: Borrowed BygraveGary LaPook15 Jan 2016, 08:45
Re: U-boat Celestial Navigation WWIIGary LaPook15 Jan 2016, 08:03
Re: U-boat Celestial Navigation WWIIGary LaPook15 Jan 2016, 07:08
Re: Borrowed BygraveGary LaPook15 Jan 2016, 06:59
Re: Great Circle Sailing ChartGary LaPook15 Jan 2016, 04:23
Re: U-boat Celestial Navigation WWIIGary LaPook15 Jan 2016, 04:20
Re: Borrowed BygraveGary LaPook15 Jan 2016, 04:09
Re: Borrowed BygraveGary LaPook15 Jan 2016, 02:42
Re: Borrowed BygraveGary LaPook15 Jan 2016, 02:16
Re: Borrowed BygraveGary LaPook15 Jan 2016, 02:06
Re: Great Circle Sailing ChartGary LaPook15 Jan 2016, 01:03
Re: U-boat Celestial Navigation WWIIGary LaPook14 Jan 2016, 01:13
Re: U-boat Celestial Navigation WWIIGary LaPook13 Jan 2016, 09:18
Re: U-boat Celestial Navigation WWIIGary LaPook13 Jan 2016, 09:09
Re: U-boat Celestial Navigation WWIIGary LaPook13 Jan 2016, 09:05
Re: Traditional navigation by slide ruleGary LaPook13 Jan 2016, 08:51
Re: Traditional navigation by slide rule (correction)Gary LaPook12 Jan 2016, 22:12
Re: Traditional navigation by slide rule (correction)Gary LaPook12 Jan 2016, 21:40
Re: Traditional navigation by slide ruleGary LaPook12 Jan 2016, 08:14
Re: U-boat Celestial Navigation WWIIGary LaPook12 Jan 2016, 07:30
Re: U-boat Celestial Navigation WWIIGary LaPook12 Jan 2016, 07:10
Re: Traditional navigation by slide ruleGary LaPook11 Jan 2016, 22:50
Re: Traditional navigation by slide ruleGary LaPook11 Jan 2016, 20:41
Re: Traditional navigation by slide ruleGary LaPook11 Jan 2016, 05:54
Re: Traditional navigation by slide rule (correction)Gary LaPook10 Jan 2016, 20:50
Re: Traditional navigation by slide ruleGary LaPook10 Jan 2016, 20:35
Re: 2016 Nautical AlmanacGary LaPook10 Jan 2016, 19:13
Re: Polaris LTAGary LaPook9 Jan 2016, 19:46
Re: U-boat Celestial Navigation WWIIGary LaPook9 Jan 2016, 19:18
Re: Polaris LTAGary LaPook9 Jan 2016, 11:09
Re: Air vs. water: MOB and MOO table corrections in HO 249Gary LaPook9 Jan 2016, 07:36
Re: Polaris LTAGary LaPook9 Jan 2016, 07:01
Re: 2016 Nautical AlmanacGary LaPook9 Jan 2016, 06:58
Re: Polaris LTAGary LaPook9 Jan 2016, 01:35
Re: Polaris LTAGary LaPook8 Jan 2016, 22:40
Re: Air vs. water: MOB and MOO table corrections in HO 249Gary LaPook8 Jan 2016, 22:34
Re: Air vs. water: MOB and MOO table corrections in HO 249Gary LaPook8 Jan 2016, 22:28
Re: U-boat Celestial Navigation WWIIGary LaPook8 Jan 2016, 22:17
Re: U-boat Celestial Navigation WWIIGary LaPook8 Jan 2016, 22:12
Re: U-boat Celestial Navigation WWIIGary LaPook8 Jan 2016, 22:11
Re: Accuracy of Nautical Almanac vs Air AlmanacGary LaPook8 Jan 2016, 07:57
Re: U-boat Celestial Navigation WWIIGary LaPook7 Jan 2016, 19:13
Re: Traditional navigation by slide ruleGary LaPook7 Jan 2016, 18:59
Re: Traditional navigation by slide ruleGary LaPook7 Jan 2016, 02:42
Re: Traditional navigation by slide ruleGary LaPook6 Jan 2016, 19:43
Re: Ex-meridian reasoning muddle?Gary LaPook5 Jan 2016, 05:35
Re: Calculator v. Slide Rule for Ex-Meridian CorrectionGary LaPook4 Jan 2016, 06:31
Re: Calculator v. Slide Rule for Ex-MeridianCorrectionGary LaPook2 Jan 2016, 19:16
Re: Calculator v. Slide Rule for Ex-Meridian CorrectionGary LaPook2 Jan 2016, 18:38
Re: Lighting Problems w/ Aircraft Bubble SextantsGary LaPook29 Dec 2015, 07:14
Edward WrightGary LaPook28 Dec 2015, 06:38
Re: Circular "Navigational Computer"Gary LaPook27 Dec 2015, 04:27
Re: Circular "Navigational Computer"Gary LaPook26 Dec 2015, 08:39
Re: Differences between computing devicesGary LaPook26 Dec 2015, 04:51
Re: Rude star finderGary LaPook25 Dec 2015, 18:00
Re: Rude star finderGary LaPook25 Dec 2015, 09:06
Re: Rude star finderGary LaPook25 Dec 2015, 08:25
Re: Rude star finderGary LaPook25 Dec 2015, 07:59
Re: Rude star finderGary LaPook25 Dec 2015, 07:37
Re: Spotting scope technique, success wow!!...Gary LaPook22 Dec 2015, 06:39
Re: Rude star finderGary LaPook22 Dec 2015, 06:39
Re: Spotting scope technique, success wow!!...Gary LaPook22 Dec 2015, 06:34
Re: Rude star finderGary LaPook22 Dec 2015, 06:04
Re: Spotting scope technique, success wow!!...Gary LaPook22 Dec 2015, 05:39
Re: Rude star finderGary LaPook22 Dec 2015, 03:47
Re: Solstice in twelve hoursGary LaPook21 Dec 2015, 20:23
Re: Help for beginnerGary LaPook21 Dec 2015, 19:00
Re: Help for beginnerGary LaPook21 Dec 2015, 08:05
Re: Help for beginnerGary LaPook21 Dec 2015, 07:39
Re: Help for beginnerGary LaPook21 Dec 2015, 05:32
Re: Rude star finderGary LaPook20 Dec 2015, 19:09
Re: Rude star finderGary LaPook17 Dec 2015, 18:18
Re: Rude star finderGary LaPook16 Dec 2015, 19:05
Re: Rude star finderGary LaPook16 Dec 2015, 07:53
Re: B-52 navigator in New York TimesGary LaPook16 Dec 2015, 07:46
Rude star finderGary LaPook15 Dec 2015, 18:33
Re: Spotting scope technique, success wow!!...Gary LaPook14 Dec 2015, 20:45
Re: Calculate new coordinates given bearing and distance?Gary LaPook11 Dec 2015, 07:05
Re: Long Term vs Annual AlmanacGary LaPook5 Dec 2015, 07:41
Re: App or program to find Hc just from lat, dec and LHA?Gary LaPook4 Dec 2015, 17:17
Re: MA-1 on eBayGary LaPook3 Dec 2015, 08:58
Re: Polar navigation...exact north pole?Gary LaPook3 Dec 2015, 04:51
Polar navigationGary LaPook1 Dec 2015, 05:39
Re: Interesting libraryGary LaPook1 Dec 2015, 04:44
Re: Azimuth Angle and the Time DiagramsGary LaPook30 Nov 2015, 00:18
Re: Other uses for USNO Navigational Star ChartGary LaPook27 Nov 2015, 00:12
Re: Sight Reduction Tables (HO 249 Vol 1 and HO 229Vol4) - AProblemGary LaPook23 Nov 2015, 07:24
Re: Sight Reduction Tables (HO 249 Vol 1 and HO 229 Vol4) - AProblemGary LaPook22 Nov 2015, 23:21
Re: Sight Reduction Tables (HO 249 Vol 1 and HO 229 Vol4) - AProblemGary LaPook22 Nov 2015, 23:15
Re: Sight Reduction Tables (HO 249 Vol 1 and HO 229 Vol4) - A ProblemGary LaPook22 Nov 2015, 19:38
Re: CN Aspects of Chichester's Tasman CrossingGary LaPook22 Nov 2015, 09:59
Re: CN Aspects of Chichester's Tasman CrossingGary LaPook21 Nov 2015, 22:49
Re: CN Aspects of Chichester's Tasman CrossingGary LaPook21 Nov 2015, 08:34
Re: CN Aspects of Chichester's Tasman CrossingGary LaPook21 Nov 2015, 08:18
Re: Calculate star rise or set time?Gary LaPook19 Nov 2015, 10:30
Re: Calculate star rise or set time?Gary LaPook19 Nov 2015, 04:02
Re: MA-1 on eBayGary LaPook19 Nov 2015, 01:52
Re: MA-1 on eBayGary LaPook19 Nov 2015, 01:40
Re: Bearing of the sun at a given time from a given positionGary LaPook18 Nov 2015, 08:14
Re: MA-1 on eBayGary LaPook18 Nov 2015, 06:48
Re: MA-1 on eBayGary LaPook18 Nov 2015, 05:19
Re: Sight reduction methodsGary LaPook14 Nov 2015, 19:30
Re: NGA to update Bowditch, seeks public inputGary LaPook12 Nov 2015, 18:55
Re: CN Aspects of Chichester's Tasman CrossingGary LaPook10 Nov 2015, 21:12
Re: Short Wave Vs 2-Meter Ham Band frequencies for UTGary LaPook10 Nov 2015, 08:08
Re: Is night vision independent?Gary LaPook10 Nov 2015, 07:47
Re: H.O. 218 Vs. H.O. 249Gary LaPook8 Nov 2015, 01:21
Re: Sight reduction methodsGary LaPook5 Nov 2015, 18:31
Re: Sight reduction methodsGary LaPook4 Nov 2015, 18:37
Re: Sight reduction methodsGary LaPook4 Nov 2015, 18:02
Re: Sight reduction methodsGary LaPook4 Nov 2015, 09:11
Re: Sight reduction methodsGary LaPook4 Nov 2015, 09:06
Re: Sight reduction methodsGary LaPook3 Nov 2015, 23:38
Re: Sight reduction methodsGary LaPook3 Nov 2015, 23:33
Re: Green flash!Gary LaPook2 Nov 2015, 10:21
Re: Ageton Classic SR Table PDFGary LaPook30 Oct 2015, 22:42
Re: Ageton HO 211 accuracy 1944 articleGary LaPook30 Oct 2015, 04:26
Re: Ageton HO 211 accuracy 1944 articleGary LaPook30 Oct 2015, 04:24
Re: Nomenclature SemanticsGary LaPook29 Oct 2015, 16:46
Re: Kansas: heartland of celestial navigationGary LaPook29 Oct 2015, 04:47
Re: Using Table 4 HO249 for Suns GHA and Dec.Gary LaPook26 Oct 2015, 23:01
Re: Another crazy sextant picGary LaPook26 Oct 2015, 16:53
Re: Bubble Sextant as Dip MeterGary LaPook25 Oct 2015, 03:39
Re: Bubble Sextant as Dip MeterGary LaPook24 Oct 2015, 10:50
Re: Bubble Sextant as Dip MeterGary LaPook23 Oct 2015, 23:11
Re: Degrees and minutes vs decimal degreesandtheDaily PagesGary LaPook20 Oct 2015, 15:53
Re: Degrees and minutes vs decimal degrees andtheDaily PagesGary LaPook19 Oct 2015, 23:46
Re: US Naval Academy reinstates classes in celestial navigationGary LaPook15 Oct 2015, 16:27
Re: The magical maths of Google MapsGary LaPook8 Oct 2015, 10:00
Re: The magical maths of Google MapsGary LaPook8 Oct 2015, 09:00
Re: The magical maths of Google MapsGary LaPook7 Oct 2015, 05:25
Re: The magical maths of Google MapsGary LaPook7 Oct 2015, 03:52
Re: The magical maths of Google MapsGary LaPook6 Oct 2015, 23:15
Re: Got a new sextant?Gary LaPook4 Oct 2015, 07:42
Re: Got a new sextant?Gary LaPook3 Oct 2015, 21:11
Re: Got a new sextant?Gary LaPook3 Oct 2015, 21:07
Re: Got a new sextant?Gary LaPook3 Oct 2015, 21:06
Re: Got a new sextant?Gary LaPook3 Oct 2015, 21:02
Re: Got a new sextant?Gary LaPook2 Oct 2015, 23:10
Re: Sextant with an umbrellaGary LaPook2 Oct 2015, 04:13
Re: Sextant with an umbrellaGary LaPook2 Oct 2015, 04:08
Re: Precomputing sights with the Rude star finderGary LaPook28 Sep 2015, 07:26
Precomputing sights with the Rude star finderGary LaPook28 Sep 2015, 07:02
Re: Was it a "super moon" or just the same old moon?Gary LaPook28 Sep 2015, 06:06
Re: Help - Unknown Compass Graduation ArrangementGary LaPook25 Sep 2015, 17:46
Re: Watches as chronometersGary LaPook24 Sep 2015, 08:18
Re: Lunar Averaging and theoretical line slope.Gary LaPook24 Sep 2015, 05:34
Re: Four chronometers walk into a bar...Gary LaPook24 Sep 2015, 01:13
Re: Four chronometers walk into a bar...Gary LaPook24 Sep 2015, 01:06
Re: Four chronometers walk into a bar...Gary LaPook22 Sep 2015, 12:07
Re: Four chronometers walk into a bar...Gary LaPook21 Sep 2015, 18:38
Re: Four chronometers walk into a bar...Gary LaPook21 Sep 2015, 14:55
Re: A Sextant Story -- from Air Force Space CommandGary LaPook10 Sep 2015, 15:42
Re: A Sextant Story -- from Air Force Space CommandGary LaPook9 Sep 2015, 22:35
Re: Reusability of Polaris TablesGary LaPook8 Sep 2015, 18:42
Re: Reusability of Polaris TablesGary LaPook8 Sep 2015, 17:51
Re: Reusability of Polaris TablesGary LaPook8 Sep 2015, 02:48
Re: Reusability of Polaris TablesGary LaPook8 Sep 2015, 02:45
Re: Reusability of Polaris TablesGary LaPook8 Sep 2015, 02:43
Searching document archiveGary LaPook2 Sep 2015, 15:35
Re: Hav-DoniolGary LaPook2 Sep 2015, 14:41
Re: Ball Recording Sextant Mark 1 Mod. 0Gary LaPook2 Sep 2015, 03:32
Re: Side error and cylindersGary LaPook28 Aug 2015, 17:28
Re: DIY Tables?Gary LaPook27 Aug 2015, 17:02
Re: Book - Wind, Sand and StarsGary LaPook24 Aug 2015, 06:49
Re: Weir's Azimuth DiagtamGary LaPook23 Aug 2015, 22:10
Re: Book - Wind, Sand and StarsGary LaPook21 Aug 2015, 07:41
Re: Book - Wind, Sand and StarsGary LaPook19 Aug 2015, 17:24
Re: NOW what?Gary LaPook19 Aug 2015, 07:54
Re: Book - Wind, Sand and StarsGary LaPook19 Aug 2015, 06:27
Re: Definition of the twilight intervalsGary LaPook17 Aug 2015, 22:54
Re: NOW what?Gary LaPook15 Aug 2015, 18:08
Re: Brown-NassauGary LaPook11 Aug 2015, 23:17
Re: Beginningbook on CelNavGary LaPook9 Aug 2015, 07:14
Re: Arcturus- what is the arc diameter from Earth?Gary LaPook7 Aug 2015, 02:16
Re: Bit more on Haversine FormulaGary LaPook6 Aug 2015, 04:27
Re: Bit more on Haversine FormulaGary LaPook6 Aug 2015, 04:20
Re: Plotting vs calculating PositionGary LaPook1 Aug 2015, 15:07
Re: Plotting vs calculating PositionGary LaPook31 Jul 2015, 15:54
Re: Plotting vs calculating PositionGary LaPook31 Jul 2015, 04:08
Re: Plotting vs calculating PositionGary LaPook30 Jul 2015, 23:01
Mh 370Gary LaPook30 Jul 2015, 19:10
Re: What precision is required in cel nav?Gary LaPook18 Jul 2015, 18:45
Re: What precision is required in cel nav?Gary LaPook17 Jul 2015, 20:41
Re: What precision is required in cel nav?Gary LaPook17 Jul 2015, 17:25
Re: Another "emergency navigation" sightreductionmethodGary LaPook15 Jul 2015, 17:01
Re: Another "emergency navigation"sightreductionmethodGary LaPook15 Jul 2015, 06:51
Re: Another "emergency navigation" sight reductionmethodGary LaPook14 Jul 2015, 23:19
Re: Backyard Sextant SystemGary LaPook14 Jul 2015, 23:08
Re: Another "emergency navigation"sightreductionmethodGary LaPook14 Jul 2015, 20:01
Re: Another "emergency navigation" sight reductionmethodGary LaPook14 Jul 2015, 19:54
Re: Another "emergency navigation" sightreductionmethodGary LaPook14 Jul 2015, 18:18
Re: Another "emergency navigation" sight reductionmethodGary LaPook14 Jul 2015, 07:22
Re: Bygrave Special CasesGary LaPook14 Jul 2015, 07:10
Re: Another "emergency navigation" sight reductionmethodGary LaPook13 Jul 2015, 08:53
Re: Another "emergency navigation" sight reduction methodGary LaPook13 Jul 2015, 06:14
Re: Bygrave Special CasesGary LaPook12 Jul 2015, 07:57
Re: Bygrave Special CasesGary LaPook12 Jul 2015, 07:31
Re: Another "emergency navigation" sight reduction methodGary LaPook12 Jul 2015, 07:26
Re: Another "emergency navigation" sight reduction methodGary LaPook10 Jul 2015, 10:10
Re: Another "emergency navigation" sight reduction methodGary LaPook10 Jul 2015, 08:37
Re: Another "emergency navigation" sight reductionmethodGary LaPook9 Jul 2015, 00:44
Re: Another "emergency navigation" sight reduction methodGary LaPook6 Jul 2015, 05:35
Re: Another "emergency navigation" sight reduction methodGary LaPook5 Jul 2015, 22:11
Re: Backyard Sextant SystemGary LaPook3 Jul 2015, 08:20
Re: Hand Bearing Compass DeviationGary LaPook1 Jul 2015, 06:36
Warimoo ArticleGary LaPook1 Jul 2015, 03:33
Re: Robert Doniol's resume and accomplishmentsGary LaPook1 Jul 2015, 03:25
Re: Robert Doniol's resume and accomplishmentsGary LaPook1 Jul 2015, 02:08
Re: Does "Lifeboat Navigation" exist today?Gary LaPook30 Jun 2015, 20:18
Re: Robert Doniol's resume and accomplishmentsGary LaPook30 Jun 2015, 19:06
Re: Robert Doniol's resume and accomplishmentsGary LaPook30 Jun 2015, 18:40
Re: Robert Doniol's resume and accomplishmentsGary LaPook30 Jun 2015, 18:35
Re: Review of the Longhand Haversine Sight ReductionmethodGary LaPook27 Jun 2015, 18:25
Re: Review of the Longhand Haversine Sight Reduction methodGary LaPook27 Jun 2015, 08:59
Re: Comparison, Pan of Oil vs Mirror Artificial HorizonGary LaPook24 Jun 2015, 05:17
Re: Comparison, Pan of Oil vs Mirror Artificial HorizonGary LaPook23 Jun 2015, 21:19
Re: Review of the Longhand Haversine Sight Reduction methodGary LaPook21 Jun 2015, 22:29
Practice with your artificial horizon and bubble sextantGary LaPook21 Jun 2015, 21:57
Re: Dip Short questionGary LaPook21 Jun 2015, 21:30
Re: Making an impact with hav-Doniol (collection of prior posts)Gary LaPook21 Jun 2015, 18:05
Re: Does "Lifeboat Navigation" exist today?Gary LaPook20 Jun 2015, 23:02
Re: Making an impact with hav-DoniolGary LaPook20 Jun 2015, 17:11
Re: Does "Lifeboat Navigation" exist today?Gary LaPook18 Jun 2015, 17:51
Re: Does "Lifeboat Navigation" exist today?Gary LaPook17 Jun 2015, 18:34
Re: Does "Lifeboat Navigation" exist today?Gary LaPook17 Jun 2015, 10:06
Re: Does "Lifeboat Navigation" exist today?Gary LaPook17 Jun 2015, 06:49
Re: Historical math and astronomy tables,LOCOMAT,7-placecylindricalslide ruleGary LaPook16 Jun 2015, 09:51
Re: Historical math andastronomytables,LOCOMAT,7-placecylindricalslide ruleGary LaPook16 Jun 2015, 09:42
Re: Historical math and astronomytables,LOCOMAT,7-placecylindricalslide ruleGary LaPook16 Jun 2015, 09:39
Re: Historical math and astronomy tables,LOCOMAT,7-placecylindricalslide ruleGary LaPook16 Jun 2015, 09:14
Re: Historical math and astronomy tables, LOCOMAT, 7-placecylindricalslide ruleGary LaPook16 Jun 2015, 08:58
Re: Hav-DoniolGary LaPook16 Jun 2015, 08:30
Re: Historical math and astronomy tables,LOCOMAT,7-place cylindricalslide ruleGary LaPook16 Jun 2015, 08:21
Re: Greg's article on hav-Doniol in "Ocean Navigator"Gary LaPook15 Jun 2015, 10:04
Re: Greg's article on hav-Doniol in "Ocean Navigator"Gary LaPook15 Jun 2015, 09:56
Re: Greg's article on hav-Doniol in "Ocean Navigator"Gary LaPook15 Jun 2015, 08:32
Re: Greg's article on hav-Doniol in "Ocean Navigator"Gary LaPook15 Jun 2015, 08:27
Re: Hav-DoniolGary LaPook15 Jun 2015, 08:04
Re: Hav-DoniolGary LaPook14 Jun 2015, 21:37
Re: Amelia Earhart commemoration: June 4, NoankGary LaPook13 Jun 2015, 08:02
Re: Greg's article on hav-Doniol in "Ocean Navigator"Gary LaPook12 Jun 2015, 07:16
Re: Greg's article on hav-Doniol in "Ocean Navigator"Gary LaPook12 Jun 2015, 06:16
Re: Timing error impact on HcGary LaPook7 Jun 2015, 18:50
Re: Timing error impact on HcGary LaPook7 Jun 2015, 05:22
Re: The Nautical Mile and the arc minuteGary LaPook6 Jun 2015, 21:09
Re: The Nautical Mile and the arc minuteGary LaPook6 Jun 2015, 00:50
Re: The Nautical Mile and the arc minuteGary LaPook5 Jun 2015, 23:11
Re: The Nautical Mile and the arc minuteGary LaPook5 Jun 2015, 22:55
Re: The Nautical Mile and the arc minuteGary LaPook5 Jun 2015, 21:23
Re: The Nautical Mile and the arc minuteGary LaPook5 Jun 2015, 19:25
Re: The Nautical Mile and the arc minuteGary LaPook5 Jun 2015, 18:46
Re: Navigator's choiceGary LaPook3 Jun 2015, 07:39
Re: Navigation errors and Sahara crash 1952Gary LaPook3 Jun 2015, 05:21
Re: Navigation errors and Sahara crash 1952Gary LaPook1 Jun 2015, 21:28
Re: Navigation errors and Sahara crash 1952Gary LaPook1 Jun 2015, 21:11
Re: Navigation errors and Sahara crash 1952Gary LaPook1 Jun 2015, 20:58
Re: Navigation errors and Sahara crash 1952Gary LaPook1 Jun 2015, 19:13
Re: Navigation errors and Sahara crash 1952Gary LaPook1 Jun 2015, 09:20
Re: Navigation errors and Sahara crash 1952Gary LaPook30 May 2015, 22:49
Navigation errors and Sahara crash 1952Gary LaPook30 May 2015, 19:26
Re: 2102-D star finder or other?Gary LaPook30 May 2015, 17:16
Re: CP-300/U Star FinderGary LaPook29 May 2015, 16:14
Re: CP-300/U Star FinderGary LaPook29 May 2015, 05:17
Re: Moon Altitude CorrectionGary LaPook26 May 2015, 19:35
Re: Moon Altitude CorrectionGary LaPook26 May 2015, 07:01
Re: Moon Altitude CorrectionGary LaPook26 May 2015, 04:00
Re: 2102-D star finder or other?Gary LaPook26 May 2015, 01:02
Re: 2102-D star finder or other?Gary LaPook26 May 2015, 00:59
Re: 2102-D star finder or other?Gary LaPook26 May 2015, 00:34
Re: 2102-D star finder or other?Gary LaPook25 May 2015, 16:06
Re: 2102-D star finder or other?Gary LaPook25 May 2015, 04:05
Re: 2102-D star finder or other?Gary LaPook24 May 2015, 14:07
Re: Moon Altitude CorrectionGary LaPook24 May 2015, 06:44
Re: 2102-D star finder or other?Gary LaPook24 May 2015, 05:36
Re: Bubble sextant collimationGary LaPook22 May 2015, 03:27
Re: Bubble sextant collimationGary LaPook20 May 2015, 21:56
Re: My plotting boardGary LaPook11 May 2015, 06:54
Re: My plotting boardGary LaPook10 May 2015, 21:15
Re: My plotting boardGary LaPook8 May 2015, 16:12
Re: My plotting boardGary LaPook8 May 2015, 09:51
Re: My plotting boardGary LaPook8 May 2015, 09:35
Re: My plotting boardGary LaPook6 May 2015, 18:50
Re: Howgozit chartGary LaPook28 Apr 2015, 23:31
Re: Howgozit chartGary LaPook28 Apr 2015, 18:13
Re: Howgozit chartGary LaPook28 Apr 2015, 18:07
Re: Advancing the LOPGary LaPook28 Apr 2015, 07:43
Re: Advancing the LOPGary LaPook27 Apr 2015, 06:02
Re: Advancing the LOPGary LaPook27 Apr 2015, 05:59
Re: Bygrave range of angles?Gary LaPook21 Apr 2015, 19:50
Re: Bygrave range of angles?Gary LaPook21 Apr 2015, 08:31
Re: Celestial Navigation at NEAFGary LaPook20 Apr 2015, 04:16
Re: Sea level defines EmpireGary LaPook17 Apr 2015, 22:54
Re: Relative bearingsGary LaPook17 Apr 2015, 17:33
Re: Another movie sextantGary LaPook15 Apr 2015, 15:30
Re: Relative bearingsGary LaPook15 Apr 2015, 15:29
Re: Sea level defines EmpireGary LaPook10 Apr 2015, 06:22
Re: Sea level defines EmpireGary LaPook9 Apr 2015, 19:09
Re: Air Almanac users?Gary LaPook8 Apr 2015, 06:38
Re: Air Almanac users?Gary LaPook8 Apr 2015, 00:19
Re: Brown-Nassau analog calculator at SmithsonianGary LaPook7 Apr 2015, 06:06
Re: LHA and Meridian AnglesGary LaPook3 Apr 2015, 00:45
Re: Determing the bearing off a celestial object.Gary LaPook1 Apr 2015, 07:38
Re: Determing the bearing off a celestial object.Gary LaPook31 Mar 2015, 07:09
Re: Celestial Navigation in the MoviesGary LaPook24 Mar 2015, 18:35
Re: Slide rules and cel navGary LaPook23 Mar 2015, 22:41
Re: Celestial Navigation in the MoviesGary LaPook23 Mar 2015, 22:24
Re: Celestial Navigation in the MoviesGary LaPook23 Mar 2015, 16:27
Re: E6B/Dalton ComputerGary LaPook16 Mar 2015, 04:30
Re: E6B/Dalton ComputerGary LaPook15 Mar 2015, 17:47
Re: Status of Celestial Nav in 2015Gary LaPook7 Mar 2015, 23:37
Re: Status of Celestial Nav in 2015Gary LaPook6 Mar 2015, 07:24
Re: Trackline Attachment Syndrome - Frances Wright's perspectiveGary LaPook15 Feb 2015, 17:50
Re: Modern celestial navigation: when and why?Gary LaPook14 Feb 2015, 17:56
Re: Modern celestial navigation: when and why?Gary LaPook14 Feb 2015, 17:49
Re: Parallax of the MoonGary LaPook7 Feb 2015, 16:13
Re: Irregular Quadrilateral CenterGary LaPook5 Feb 2015, 01:21
Re: Plath bubble sextant on ebay (C&P versus Plath)Gary LaPook3 Feb 2015, 17:28
Re: Landfall procedureGary LaPook31 Jan 2015, 08:27
Re: Landfall procedureGary LaPook31 Jan 2015, 08:02
Re: Landfall procedureGary LaPook31 Jan 2015, 07:21
Re: More on Charles Lindbergh's Attitude to NavigationGary LaPook28 Jan 2015, 17:12
Re: More on Charles Lindbergh's attitude to air navigationGary LaPook28 Jan 2015, 16:51
Re: Charles Lindbergh, dead reckoning and Amelia EarhartGary LaPook27 Jan 2015, 06:34
Re: The term APGary LaPook20 Jan 2015, 23:09
Re: Hughes explanation of Chichester's navigation.Gary LaPook15 Jan 2015, 16:12
Re: Hughes explanation of Chichester's navigation.Gary LaPook15 Jan 2015, 00:31
Re: Hughes explanation of Chichester's navigation.Gary LaPook14 Jan 2015, 17:52
Re: Obtain a fix when you don't have an clear AP?Gary LaPook14 Jan 2015, 16:22
Re: Kollsman periscopic sextant mountGary LaPook4 Jan 2015, 17:50
Re: LHA listing by the minute, looking for.Gary LaPook3 Jan 2015, 07:10
Re: Kollsman periscopic sextant mountGary LaPook3 Jan 2015, 01:09
Re: Kollsman periscopic sextant mountGary LaPook3 Jan 2015, 01:03
Re: LHA listing by the minute, looking for.Gary LaPook2 Jan 2015, 11:41
Fw: Re: The Great Circle ChallengeGary LaPook31 Dec 2014, 08:50
Re: The Great Circle ChallengeGary LaPook30 Dec 2014, 08:31
Re: The Great Circle ChallengeGary LaPook30 Dec 2014, 06:22
Re: The Great Circle ChallengeGary LaPook29 Dec 2014, 20:01
Re: The Great Circle ChallengeGary LaPook28 Dec 2014, 17:30
Re: The Great Circle ChallengeGary LaPook27 Dec 2014, 03:44
Re: The Great Circle ChallengeGary LaPook27 Dec 2014, 03:39
Re: The Great Circle ChallengeGary LaPook27 Dec 2014, 01:59
Re: The Great Circle ChallengeGary LaPook27 Dec 2014, 01:51
Re: The Great Circle ChallengeGary LaPook26 Dec 2014, 19:35
Re: The Great Circle ChallengeGary LaPook26 Dec 2014, 19:17
Re: Azimith forumula for Great Circle sailings- having problemsGary LaPook25 Dec 2014, 04:09
Re: Azimith forumula for Great Circle sailings- having problemsGary LaPook24 Dec 2014, 23:56
Re: Azimith forumula for Great Circle sailings- having problemsGary LaPook24 Dec 2014, 08:51
Re: Azimith forumula for Great Circle sailings- having problemsGary LaPook23 Dec 2014, 23:54
Re: Earhart articleGary LaPook22 Dec 2014, 06:41
Re: LHA listing by the minute, looking for.Gary LaPook21 Dec 2014, 09:26
Re: Earhart articleGary LaPook21 Dec 2014, 07:23
Re: LHA listing by the minute, looking for.Gary LaPook20 Dec 2014, 11:06
Re: LHA listing by the minute, looking for.Gary LaPook20 Dec 2014, 09:41
Re: LHA listing by the minute, looking for.Gary LaPook19 Dec 2014, 23:10
Re: Island in the skyGary LaPook18 Dec 2014, 01:10
Re: GHA Aries long term Table?Gary LaPook18 Dec 2014, 01:04
Re: GHA Aries long term Table?Gary LaPook18 Dec 2014, 00:39
Re: Space PenGary LaPook15 Dec 2014, 04:46
Re: Space PenGary LaPook15 Dec 2014, 01:08
Polhemus available on EBAY nowGary LaPook12 Dec 2014, 07:24
Re: Hp by Doniol for AircraftGary LaPook5 Dec 2014, 23:08
Re: Hp by Doniol for AircraftGary LaPook5 Dec 2014, 22:49
Re: Hughes explanation of Chichester's navigation.Gary LaPook5 Dec 2014, 22:25
Re: Hughes explanation of Chichester's navigation.Gary LaPook5 Dec 2014, 18:39
Re: Hughes explanation of Chichester's navigation.Gary LaPook5 Dec 2014, 10:34
Re: Hughes explanation of Chichester's navigation.Gary LaPook5 Dec 2014, 10:33
Re: Hughes explanation of Chichester's navigation.Gary LaPook5 Dec 2014, 10:19
Re: Hughes explanation of Chichester's navigation.Gary LaPook5 Dec 2014, 10:17
Re: Hughes explanation of Chichester's navigation.Gary LaPook5 Dec 2014, 08:20
Re: Hp by Doniol for AircraftGary LaPook5 Dec 2014, 08:06
Re: Hughes explanation of Chichester's navigation.Gary LaPook5 Dec 2014, 07:42
Re: Hughes explanation of Chichester's navigation.Gary LaPook5 Dec 2014, 07:13
Re: Hughes explanation of Chichester's navigation.Gary LaPook5 Dec 2014, 07:08
Re: Hughes explanation of Chichester's navigation.Gary LaPook5 Dec 2014, 02:39
Re: Hughes explanation of Chichester's navigation.Gary LaPook5 Dec 2014, 02:10
Re: Mercator Sailing and Meridional PartsGary LaPook4 Dec 2014, 08:10
Re: Hughes explanation of Chichester's navigation.Gary LaPook4 Dec 2014, 07:41
Re: Brown-Nassau CN PlotterGary LaPook4 Dec 2014, 06:33
Re: Hp by Doniol for AircraftGary LaPook3 Dec 2014, 08:54
Re: Hp by Doniol for AircraftGary LaPook2 Dec 2014, 20:51
Re: Hp by Doniol for AircraftGary LaPook2 Dec 2014, 18:52
Re: Mercator Sailing and Meridional PartsGary LaPook2 Dec 2014, 11:13
Hughes explanation of Chichester's navigation.Gary LaPook2 Dec 2014, 10:38
Chichester's explanation of his navigationGary LaPook2 Dec 2014, 10:37
Navigation of Chichesters flightGary LaPook2 Dec 2014, 10:36
Re: Hp by Doniol for AircraftGary LaPook2 Dec 2014, 08:59
Re: Hp by Doniol for AircraftGary LaPook2 Dec 2014, 08:30
Re: Hp by Doniol for AircraftGary LaPook2 Dec 2014, 08:28
Re: Longhand Sight ReductionGary LaPook28 Nov 2014, 02:17
Re: Polhemus manualGary LaPook25 Nov 2014, 18:03
Polhemus manualGary LaPook22 Nov 2014, 23:53
Re: Early methods of air navigationGary LaPook22 Nov 2014, 23:49
Re: Mear's slideGary LaPook22 Nov 2014, 23:28
Re: Early methods of air navigationGary LaPook22 Nov 2014, 18:57
Re: Early methods of air navigationGary LaPook22 Nov 2014, 07:41
Re: Early methods of air navigationGary LaPook22 Nov 2014, 07:30
Re: Early methods of air navigationGary LaPook22 Nov 2014, 07:26
Re: Early methods of air navigationGary LaPook22 Nov 2014, 06:30
Re: Early methods of air navigationGary LaPook21 Nov 2014, 18:44
Re: Early methods of air navigationGary LaPook21 Nov 2014, 18:33
Re: Early methods of air navigationGary LaPook21 Nov 2014, 18:29
Re: Early methods of air navigationGary LaPook21 Nov 2014, 18:14
Mear's slideGary LaPook21 Nov 2014, 10:03
Re: Brown-Nassau CN PlotterGary LaPook21 Nov 2014, 08:02
Mear's slideGary LaPook21 Nov 2014, 07:54
Re: Brown-Nassau CN PlotterGary LaPook21 Nov 2014, 05:51
Re: Two body Sandwich Fix ProformaGary LaPook20 Nov 2014, 03:24
Re: Brown-Nassau CN PlotterGary LaPook20 Nov 2014, 02:47
Point HondaGary LaPook20 Nov 2014, 02:43
Re: Two body Sandwich Fix ProformaGary LaPook18 Nov 2014, 00:09
Re: Brown-Nassau Spherical computerGary LaPook17 Nov 2014, 09:51
Re: Two body Sandwich Fix ProformaGary LaPook17 Nov 2014, 02:20
Re: Two body Sandwich Fix ProformaGary LaPook17 Nov 2014, 02:02
Re: Two body Sandwich Fix ProformaGary LaPook16 Nov 2014, 20:13
Re: Two body Sandwich Fix ProformaGary LaPook16 Nov 2014, 07:14
Re: Two body Sandwich Fix ProformaGary LaPook16 Nov 2014, 06:39
Re: Fixes consistantly south and west of GPSGary LaPook15 Nov 2014, 21:21
Re: Sights perpendicular to courseGary LaPook15 Nov 2014, 06:44
Re: Sights perpendicular to courseGary LaPook15 Nov 2014, 00:20
Re: Longhand Sight ReductionGary LaPook14 Nov 2014, 07:42
Re: Longhand Sight ReductionGary LaPook14 Nov 2014, 07:41
Re: Longhand Sight ReductionGary LaPook13 Nov 2014, 10:22
Re: Sights perpendicular to courseGary LaPook12 Nov 2014, 03:02
Re: Sights perpendicular to courseGary LaPook7 Nov 2014, 22:21
Re: Sights perpendicular to courseGary LaPook7 Nov 2014, 02:41
Re: Sun Shots Through CloudsGary LaPook6 Nov 2014, 05:07
Re: Limb corrections using a reflective artificial horizonGary LaPook6 Nov 2014, 05:05
Re: Earhart plane fragment may be authenticGary LaPook31 Oct 2014, 08:04
Re: Earhart plane fragment may be authenticGary LaPook30 Oct 2014, 07:37
Re: What is the best accuracy you can expect from a'dip-short' tableGary LaPook23 Oct 2014, 05:35
Re: What is the best accuracy you can expect from a'dip-short' tableGary LaPook23 Oct 2014, 05:33
Re: Ball Recording SextantGary LaPook21 Oct 2014, 18:37
Re: What is the best accuracy you can expect from a 'dip-short' tableGary LaPook21 Oct 2014, 17:03
Re: Ball Recording SextantGary LaPook21 Oct 2014, 16:57
Re: SNO-M sextant manualGary LaPook21 Oct 2014, 16:41
Re: Make a UPS? PLease ignore my prior post, NEVER mind, I did it correctly.Gary LaPook19 Oct 2014, 22:24
Re: Make a UPS? PLease ignore my prior post.Gary LaPook19 Oct 2014, 21:44
Re: Make a UPS?Gary LaPook19 Oct 2014, 21:29
Re: Interesting ebay find: Plath suncompass - cira WWIIGary LaPook16 Oct 2014, 05:07
Re: Moon total correction- round it up?Gary LaPook12 Oct 2014, 14:14
Re: Moon total correction- round it up?Gary LaPook10 Oct 2014, 06:28
Re: OT Re: Hanse yachtsGary LaPook7 Oct 2014, 21:47
Re: SNO-M sextant manualGary LaPook7 Oct 2014, 18:26
Re: Ex-meridian sun sightsGary LaPook5 Oct 2014, 22:09
Selenelion, something new in eclipsesGary LaPook5 Oct 2014, 21:02
Re: Star rise and set visibilityGary LaPook5 Oct 2014, 20:10
Re: Moon sight?Gary LaPook4 Oct 2014, 20:14
Re: Moon sight?Gary LaPook4 Oct 2014, 19:52
Re: Moon sight?Gary LaPook4 Oct 2014, 19:10
Re: Moon sight?Gary LaPook4 Oct 2014, 07:45
Re: Moon sight?Gary LaPook4 Oct 2014, 07:06
Grounding of USS GuardianGary LaPook29 Sep 2014, 05:15
Re: Polaris for Latitude- why so accurate?Gary LaPook29 Sep 2014, 03:26
Re: Polaris for Latitude- why so accurate?Gary LaPook29 Sep 2014, 03:08
Re: Polaris for Latitude- why so accurate?Gary LaPook28 Sep 2014, 01:23
Re: Fw: Re: I and C pages of the NAGary LaPook27 Sep 2014, 08:59
Fw: Re: I and C pages of the NAGary LaPook27 Sep 2014, 01:53
Re: I and C pages of the NAGary LaPook27 Sep 2014, 01:36
Re: I and C pages of the NAGary LaPook27 Sep 2014, 01:18
Re: I and C pages of the NAGary LaPook26 Sep 2014, 16:41
Re: I and C pages of the NAGary LaPook26 Sep 2014, 03:42
Re: Interesting ebay find: Plath suncompass - ciraWWIIGary LaPook25 Sep 2014, 18:11
Re: Ageton method and HO 211?Gary LaPook25 Sep 2014, 17:54
Re: Interesting ebay find: Plath suncompass - ciraWWIIGary LaPook25 Sep 2014, 05:11
Re: Interesting ebay find: Plath suncompass - cira WWIIGary LaPook25 Sep 2014, 05:04
Re: Interesting ebay find: Plath suncompass - cira WWIIGary LaPook24 Sep 2014, 14:38
Re: Interesting ebay find: Plath suncompass - cira WWIIGary LaPook24 Sep 2014, 05:15
Re: Equinox does not have equal day & night lengthGary LaPook22 Sep 2014, 23:17
Re: Calculating TwilightGary LaPook20 Sep 2014, 18:17
Re: On Math and NavigationGary LaPook18 Sep 2014, 19:18
Re: On Math and NavigationGary LaPook18 Sep 2014, 08:00
Re: Buckley Navigation TricksGary LaPook17 Sep 2014, 17:54
Re: Astrocompass in Airbus A320Gary LaPook17 Sep 2014, 04:11
Re: Flight NavigatorGary LaPook10 Sep 2014, 06:36
Re: Flight NavigatorGary LaPook10 Sep 2014, 05:50
Re: Flight NavigatorGary LaPook10 Sep 2014, 05:48
Re: 1930's flight navigationGary LaPook9 Sep 2014, 18:25
Re: Success in Sun sightsGary LaPook8 Sep 2014, 18:47
1930's flight navigationGary LaPook7 Sep 2014, 22:27
Re: Why do we ocean navigators defer to 249 when229isbetter?Gary LaPook2 Sep 2014, 19:26
Re: Why do we ocean navigators defer to 249 when 229 is better?Gary LaPook1 Sep 2014, 13:41
Re: Noonsite using artificial horizon? Did I do it correctly?Gary LaPook29 Aug 2014, 23:25
Re: Noonsite using artificial horizon? Did I do it correctly?Gary LaPook29 Aug 2014, 15:44
Re: Noonsite using artificial horizon? Did I do it correctly?Gary LaPook27 Aug 2014, 19:58
Re: Noonsite using artificial horizon? Did I do it correctly?Gary LaPook26 Aug 2014, 17:41
Re: Noonsite using artificial horizon? Did I do it correctly?Gary LaPook26 Aug 2014, 05:33
Re: North Pole ConspiracyGary LaPook26 Aug 2014, 04:49
Re: Noonsite using artificial horizon? Did I do it correctly?Gary LaPook26 Aug 2014, 03:14
Re: Noonsite using artificial horizon? Did I do it correctly?Gary LaPook25 Aug 2014, 20:32
Re: Off-topic: Future of the Gun (book)Gary LaPook17 Aug 2014, 05:23
Re: Movie: All is lost - revisitedGary LaPook4 Aug 2014, 17:04
Re: Lunar tables for month of Brumaire, year IXGary LaPook31 Jul 2014, 18:06
Re: Small craft RDF in 1967Gary LaPook31 Jul 2014, 08:17
Re: Small craft RDF in 1967Gary LaPook31 Jul 2014, 06:39
Re: Small craft RDF in 1967Gary LaPook31 Jul 2014, 06:11
Re: Small craft RDF in 1967Gary LaPook31 Jul 2014, 05:21
Re: ADMIN: begging for donations for NavList operationsGary LaPook23 Jul 2014, 04:43
Re: Rude Starfinder HistoryGary LaPook17 Jul 2014, 21:09
Re: Rude Starfinder HistoryGary LaPook17 Jul 2014, 19:28
Re: Rude Starfinder HistoryGary LaPook17 Jul 2014, 04:44
Re: Rude Starfinder HistoryGary LaPook16 Jul 2014, 06:32
Re: Rude Starfinder HistoryGary LaPook15 Jul 2014, 21:52
Computation anomaly in standard tables.Gary LaPook7 Jul 2014, 07:49
Re: Flat Bygrave alternative configurationGary LaPook3 Jul 2014, 16:40
Re: Bygrave formulaGary LaPook3 Jul 2014, 07:58
Re: Longhand Sight ReductionGary LaPook28 Jun 2014, 05:06
Re: Flat Bygrave alternative configurationGary LaPook17 Jun 2014, 21:57
Re: Flat Bygrave alternative configurationGary LaPook16 Jun 2014, 20:04
Re: Longhand Sight ReductionGary LaPook13 Jun 2014, 15:56
Re: Longhand Sight ReductionGary LaPook13 Jun 2014, 06:23
Re: First sight reduction tablesGary LaPook13 Jun 2014, 05:30
Re: Longhand Sight ReductionGary LaPook12 Jun 2014, 07:13
Re: Bygrave Patent GB162,895Gary LaPook2 Jun 2014, 05:18
Re: Making an artificial horizonGary LaPook31 May 2014, 17:51
Re: Using sun compass for calibrating boat compassGary LaPook7 May 2014, 19:43
Re: Researchers spoof GPS signals to alter superyacht'scourseGary LaPook29 Apr 2014, 15:58
Re: Researchers spoof GPS signals to alter superyacht'scourseGary LaPook28 Apr 2014, 22:44
Re: Researchers spoof GPS signals to alter superyacht'scourseGary LaPook28 Apr 2014, 20:51
Re: Anyone Lose Their Mercury?Gary LaPook25 Apr 2014, 00:06
Re: CN rendez-vous?Gary LaPook17 Apr 2014, 23:23
Re: Reminder of total lunar eclipse tonightGary LaPook15 Apr 2014, 16:23
Re: Reminder of total lunar eclipse tonightGary LaPook15 Apr 2014, 09:10
Polhemus computerGary LaPook11 Apr 2014, 08:56
Loss of GPS/GLONASS signalsGary LaPook10 Apr 2014, 17:51
Fw: H.O.229, all 6 volumesGary LaPook7 Apr 2014, 20:30
Re: H.O.229, all 6 volumesGary LaPook7 Apr 2014, 20:23
Re: Dual Stopwatch & Sextant FixGary LaPook7 Apr 2014, 05:28
Re: Approaching A Destination by Latitude Line SailingGary LaPook5 Apr 2014, 02:41
Re: Calculating Horizontal ParallaxGary LaPook3 Apr 2014, 01:16
Re: Fw: Re: (OFF-TOPIC) Flight 370Gary LaPook31 Mar 2014, 23:05
Fw: Re: (OFF-TOPIC) Flight 370Gary LaPook27 Mar 2014, 08:55
Re: (OFF-TOPIC) Flight 370Gary LaPook27 Mar 2014, 01:11
Re: (OFF-TOPIC) Flight 370Gary LaPook26 Mar 2014, 08:28
Re: (OFF-TOPIC) Flight 370Gary LaPook25 Mar 2014, 16:28
Re: Flight 370Gary LaPook24 Mar 2014, 06:17
Re: Flight 370Gary LaPook24 Mar 2014, 02:20
Re: Flight 370Gary LaPook24 Mar 2014, 01:29
Flight 370Gary LaPook23 Mar 2014, 23:41
A-7 radiumGary LaPook21 Mar 2014, 23:02
Re: Navigation exercise - travel from home to Texas and locatingposition without GPSGary LaPook21 Mar 2014, 15:24
Re: Occam's razorGary LaPook21 Mar 2014, 03:05
Re: Occam's razorGary LaPook21 Mar 2014, 00:12
Re: Occam's razorGary LaPook20 Mar 2014, 03:51
Re: Occam's razorGary LaPook19 Mar 2014, 20:12
Re: Occam's razorGary LaPook19 Mar 2014, 19:40
Re: Occam's razorGary LaPook19 Mar 2014, 19:30
Re: Occam's razorGary LaPook19 Mar 2014, 18:50
Re: Occam's razorGary LaPook19 Mar 2014, 17:26
Re: Prime MeridianGary LaPook18 Mar 2014, 19:16
Re: Question for pilots.Gary LaPook18 Mar 2014, 16:32
Re: Question for pilots.Gary LaPook18 Mar 2014, 04:39
Re: Question for pilots.Gary LaPook16 Mar 2014, 20:36
Re: MH370 circle of position?Gary LaPook15 Mar 2014, 23:00
Re: Nories sight reduction tables?Gary LaPook13 Mar 2014, 13:26
Re: Nories sight reduction tables?Gary LaPook12 Mar 2014, 15:02
MHR-1, a compendium of postsGary LaPook4 Mar 2014, 21:33
Bygrave slide rule, a compendium of postsGary LaPook4 Mar 2014, 21:32
Re: Dennert & Pape MHR-1Gary LaPook4 Mar 2014, 21:31
Re: Dennert & Pape MHR-1Gary LaPook4 Mar 2014, 21:08
Re: Ho 208 questionGary LaPook2 Mar 2014, 23:04
Re: Railroad TimeGary LaPook2 Mar 2014, 22:58
Re: Ho 208 questionGary LaPook2 Mar 2014, 22:32
Re: Learning what most of you already know about an RAF MkIXsextantbut anyway!Gary LaPook26 Feb 2014, 16:51
Re: Ho 208 questionGary LaPook26 Feb 2014, 16:42
Re: Ho 208 questionGary LaPook24 Feb 2014, 20:08
Re: Ho 208 questionGary LaPook24 Feb 2014, 20:06
Re: Piracy - this time complete messageGary LaPook23 Feb 2014, 20:01
Re: Re:the flat BygraveGary LaPook22 Feb 2014, 18:02
Re: "Time and Navigation" presentationGary LaPook16 Feb 2014, 21:05
Re: The sinking of the modern day BountyGary LaPook16 Feb 2014, 20:58
Re: Is a 7X scope worthwhile?Gary LaPook16 Feb 2014, 07:30
Re: Is a 7X scope worthwhile?Gary LaPook15 Feb 2014, 17:52
Re: Is a 7X scope worthwhile?Gary LaPook15 Feb 2014, 00:56
Re: "Time and Navigation" presentationGary LaPook14 Feb 2014, 20:31
Re: The sinking of the modern day BountyGary LaPook14 Feb 2014, 20:25
Re: The sinking of the modern day BountyGary LaPook14 Feb 2014, 20:15
Re: Warning from the architect of GPSGary LaPook14 Feb 2014, 18:54
Polais changingGary LaPook6 Feb 2014, 02:14
Re: Greetings to fellow celestial navigatorsGary LaPook5 Feb 2014, 17:47
Re: ExtinctionGary LaPook4 Feb 2014, 22:27
Green flash!Gary LaPook4 Feb 2014, 10:31
ExtinctionGary LaPook4 Feb 2014, 10:13
Re: Precomputing sextant observations at seaGary LaPook30 Jan 2014, 04:11
Re: Precomputing sextant observations at seaGary LaPook29 Jan 2014, 11:54
Re: Precomputing sextant observations at seaGary LaPook29 Jan 2014, 11:27
Re: Precomputing sextant observations at seaGary LaPook29 Jan 2014, 00:32
Precomputing sextant observations at seaGary LaPook28 Jan 2014, 12:02
Precomputing sextant observations at seaGary LaPook28 Jan 2014, 12:02
Precomputing sextant observations at seaGary LaPook28 Jan 2014, 12:00
Precomputing sextant observations at seaGary LaPook27 Jan 2014, 10:15
Precomputing sextant observations at seaGary LaPook27 Jan 2014, 10:13
Precomputing sextant observations at seaGary LaPook27 Jan 2014, 10:12
Precomputing sextant observations at seaGary LaPook27 Jan 2014, 10:10
Precomputing sextant observations at seaGary LaPook27 Jan 2014, 10:07
Precomputing sextant observations at seaGary LaPook27 Jan 2014, 10:04
Re: Poor Line of Position ComputerGary LaPook24 Jan 2014, 07:36
Re: Poor Line of Position ComputerGary LaPook24 Jan 2014, 02:09
Re: Using a slide rule for celnavGary LaPook22 Jan 2014, 11:05
Re: Using a slide rule for celnavGary LaPook21 Jan 2014, 08:19
Re: Using a slide rule for celnavGary LaPook21 Jan 2014, 01:44
Re: Using a slide rule for celnavGary LaPook21 Jan 2014, 00:58
Re: Using a slide rule for celnavGary LaPook21 Jan 2014, 00:07
Re: Using a slide rule for celnavGary LaPook21 Jan 2014, 00:01
Re: Using a slide rule for celnavGary LaPook20 Jan 2014, 09:12
Re: Using a slide rule for celnavGary LaPook20 Jan 2014, 09:03
Re: Work sheets, plotting sheets for H.O. 211Gary LaPook20 Jan 2014, 01:58
Re: Off-topic: Recommendation for "Captain Phillips"Gary LaPook19 Jan 2014, 20:41
Re: Weems LOP Short Table MethodGary LaPook19 Jan 2014, 20:32
Re: Off-topic: Recommendation for "Captain Phillips"Gary LaPook19 Jan 2014, 20:05
Re: Off-topic: Recommendation for "Captain Phillips"Gary LaPook19 Jan 2014, 19:57
Re: Off-topic: Recommendation for "Captain Phillips"Gary LaPook19 Jan 2014, 19:42
Re: Off-topic: Recommendation for "Captain Phillips"Gary LaPook18 Jan 2014, 21:52
Re: Off-topic: Recommendation for "Captain Phillips"Gary LaPook18 Jan 2014, 19:53
A-7 and A-5 ManualGary LaPook17 Jan 2014, 17:36
Re: H.O. 208 questionGary LaPook16 Jan 2014, 18:29
Re: Off-topic: Recommendation for "Captain Phillips"Gary LaPook16 Jan 2014, 07:22
Re: Off-topic: Recommendation for "Captain Phillips"Gary LaPook16 Jan 2014, 06:32
Re: Fix differences with 5 reduction methods...Read "clarifications"Gary LaPook16 Jan 2014, 05:34
Re: Off-topic: Recommendation for "Captain Phillips"Gary LaPook15 Jan 2014, 19:08
Re: Index mirror adjustment with offset mirrorGary LaPook15 Jan 2014, 18:54
Re: Off-topic: Recommendation for "Captain Phillips"Gary LaPook15 Jan 2014, 10:52
Re: Patrick O'Brian seriesGary LaPook15 Jan 2014, 05:12
Re: Sextant RepairsGary LaPook15 Jan 2014, 04:51
Re: Need help with HO208Gary LaPook13 Jan 2014, 22:13
Re: Question Re: Position by CalculationGary LaPook13 Jan 2014, 19:01
Re: Question Re: Position by CalculationGary LaPook13 Jan 2014, 18:52
Re: Question Re: Position by CalculationGary LaPook13 Jan 2014, 18:47
Re: Question Re: Position by CalculationGary LaPook13 Jan 2014, 18:38
Re: Need help with HO208Gary LaPook13 Jan 2014, 05:04
Re: Japanese Bygrave slider rule on EbayGary LaPook13 Jan 2014, 02:10
Re: Japanese Bygrave slider rule on EbayGary LaPook11 Jan 2014, 21:51
Re: Screen captures from "All is Lost"Gary LaPook11 Jan 2014, 21:08
Re: Screen captures from "All is Lost"Gary LaPook11 Jan 2014, 20:54
Re: Screen captures from "All is Lost"Gary LaPook11 Jan 2014, 20:24
Re: Screen captures from "All is Lost"Gary LaPook11 Jan 2014, 20:21
Re: What should I expect for a land based sight accuracyGary LaPook10 Jan 2014, 18:51
Re: Japanese Bygrave slider rule on EbayGary LaPook9 Jan 2014, 09:08
Re: Japanese Bygrave slider rule on EbayGary LaPook9 Jan 2014, 00:07
Re: Japanese Bygrave slider rule on EbayGary LaPook8 Jan 2014, 17:33
Re: Japanese Bygrave slider rule on EbayGary LaPook8 Jan 2014, 17:30
Re: Question Re: Position by CalculationGary LaPook7 Jan 2014, 22:16
Re: Question Re: Position by CalculationGary LaPook7 Jan 2014, 21:56
Re: Question Re: Position by CalculationGary LaPook7 Jan 2014, 17:56
Re: Question Re: Position by CalculationGary LaPook7 Jan 2014, 04:02
Re: Question Re: Position by CalculationGary LaPook7 Jan 2014, 00:51
Re: All Bygrave slide rule postsGary LaPook6 Jan 2014, 08:26
Re: All Bygrave slide rule postsGary LaPook6 Jan 2014, 06:57
Re: All Bygrave slide rule postsGary LaPook6 Jan 2014, 06:00
Re: Can you work a Polaris problem just like any other star?Gary LaPook5 Jan 2014, 07:30
Re: Sight Reduction Tables for Small Boat Navigation byHewittSchlerethGary LaPook5 Jan 2014, 07:06
Re: Confirmation of a story I was toldGary LaPook3 Jan 2014, 09:30
Re: Confirmation of a story I was toldGary LaPook3 Jan 2014, 05:16
Re: Measuring Dip in the 18th CenturyGary LaPook1 Jan 2014, 20:23
Fw: My First airborne shotsGary LaPook1 Jan 2014, 09:36
Re: Measuring Dip in the 18th CenturyGary LaPook1 Jan 2014, 08:35
Re: Measuring Dip in the 18th CenturyGary LaPook1 Jan 2014, 08:28
Re: Angular inclination of an interstate highwayGary LaPook31 Dec 2013, 19:44
Re: Angular inclination of an interstate highwayGary LaPook31 Dec 2013, 19:25
Re: Mercury artificial horizonsGary LaPook31 Dec 2013, 06:14
Re: Mercury artificial horizonsGary LaPook31 Dec 2013, 05:47
Re: Getting ready for a spring demo...Gary LaPook30 Dec 2013, 06:01
Re: Getting ready for a spring demo...Gary LaPook29 Dec 2013, 21:30
Re: Measuring Dip in the 18th CenturyGary LaPook28 Dec 2013, 08:08
Re: Non-existent seamount in Google EarthGary LaPook27 Dec 2013, 16:43
Re: In Search of Dip AnomalyGary LaPook27 Dec 2013, 16:14
Re: Non-existent seamount in Google EarthGary LaPook27 Dec 2013, 09:28
Re: Measuring Dip in the 18th CenturyGary LaPook26 Dec 2013, 18:27
Re: Measuring Dip in the 18th CenturyGary LaPook26 Dec 2013, 07:48
Re: Improvised Artificial HorizonGary LaPook24 Dec 2013, 03:13
Re: Measuring Dip in the 18th CenturyGary LaPook21 Dec 2013, 08:31
Re: Measuring Dip in the 18th CenturyGary LaPook20 Dec 2013, 10:48
Re: Recent Additions to Project GutenbergGary LaPook20 Dec 2013, 07:34
Re: A question for the geodisistsGary LaPook19 Dec 2013, 20:56
Re: A question for the geodisistsGary LaPook19 Dec 2013, 11:27
Re: A question for the geodisistsGary LaPook18 Dec 2013, 17:34
Re: A question for the geodisistsGary LaPook18 Dec 2013, 08:15
Re: A question for the geodisistsGary LaPook18 Dec 2013, 07:47
Re: A question for the geodisistsGary LaPook18 Dec 2013, 05:26
Re: A question for the geodisistsGary LaPook18 Dec 2013, 05:25
Re: A question for the geodisistsGary LaPook18 Dec 2013, 00:59
Re: A question for the geodisistsGary LaPook18 Dec 2013, 00:40
A question for the geodisistsGary LaPook17 Dec 2013, 11:01
Re: British Summer Time versus GMTGary LaPook17 Dec 2013, 01:24
Re: OT: Interesting videoGary LaPook16 Dec 2013, 22:56
Re: British Summer Time versus GMTGary LaPook16 Dec 2013, 22:49
Re: British Summer Time versus GMTGary LaPook16 Dec 2013, 18:41
Re: More comments on movie "All is Lost"Gary LaPook16 Dec 2013, 09:56
Re: British Summer Time versus GMTGary LaPook16 Dec 2013, 09:54
Re: Radio-quiet oceans and emergency navigationGary LaPook16 Dec 2013, 09:36
Re: British Summer Time versus GMTGary LaPook13 Dec 2013, 04:28
Re: Forms for SR Ho208 & Ho 249 Vol1Gary LaPook12 Dec 2013, 05:09
Re: Forms for SR Ho208 & Ho 249 Vol1Gary LaPook12 Dec 2013, 04:14
Re: More comments on movie "All is Lost"Gary LaPook9 Dec 2013, 02:47
Re: Bubble sextant parts and calibrationGary LaPook5 Dec 2013, 07:15
Re: Sextant and iPhone on the QM2Gary LaPook5 Dec 2013, 02:38
Re: Sextant and iPhone on the QM2Gary LaPook4 Dec 2013, 19:21
Re: Sight reduction method historyGary LaPook3 Nov 2013, 05:44
Re: Improvised Artificial HorizonGary LaPook22 Oct 2013, 07:41
Re: Celestial NavigationGary LaPook21 Oct 2013, 10:14
Re: Celestial NavigationGary LaPook20 Oct 2013, 18:32
Re: Celestial NavigationGary LaPook19 Oct 2013, 00:03
Celnav in moviesGary LaPook18 Oct 2013, 09:11
Re: An interesting questionGary LaPook12 Oct 2013, 19:39
Re: An interesting questionGary LaPook12 Oct 2013, 19:35
Re: An interesting questionGary LaPook11 Oct 2013, 04:03
Re: Pub.249Gary LaPook3 Oct 2013, 17:18
Re: SunriseGary LaPook25 Sep 2013, 21:51
Re: Kollsman periscopic sextant mountGary LaPook23 Sep 2013, 04:04
Re: Kollsman periscopic sextant mountGary LaPook23 Sep 2013, 03:59
Re: Google Doodle of InterestGary LaPook18 Sep 2013, 21:00
Re: Upper limb correction for moonGary LaPook15 Sep 2013, 17:14
Re: Upper limb correction for moonGary LaPook12 Sep 2013, 16:52
Re: Upper limb correction for moonGary LaPook12 Sep 2013, 08:16
Re: Upper limb correction for moonGary LaPook11 Sep 2013, 21:08
Re: Upper limb correction for moonGary LaPook11 Sep 2013, 08:16
Re: Upper limb correction for moonGary LaPook3 Sep 2013, 07:48
A-5 and A-7 ManualGary LaPook24 Aug 2013, 07:28
Re: Increments and CorrectionsGary LaPook18 Aug 2013, 04:11
Re: Increments and CorrectionsGary LaPook18 Aug 2013, 01:41
Re: Increments and CorrectionsGary LaPook17 Aug 2013, 15:39
Re: Making an artificial horizonGary LaPook16 Aug 2013, 16:51
Re: Making an artificial horizonGary LaPook16 Aug 2013, 05:15
Re: Removing Deviation from the Ship's Magnetic CompassGary LaPook15 Aug 2013, 20:52
Re: Interesting problem from 1828Gary LaPook13 Aug 2013, 05:10
Re: The ultimate navigation watch?Gary LaPook13 Aug 2013, 04:54
Re: The ultimate navigation watch?Gary LaPook13 Aug 2013, 02:38
Re: Spoofing celestial navigationGary LaPook11 Aug 2013, 01:46
Re: Spoofing celestial navigationGary LaPook10 Aug 2013, 16:43
Re: Removing Deviation from the Ship's Magnetic CompassGary LaPook6 Aug 2013, 16:33
Re: 229 and 249Gary LaPook27 Jul 2013, 14:28
Re: Increments and CorrectionsGary LaPook16 Jul 2013, 17:50
Re: Slide rules in moviesGary LaPook16 Jul 2013, 09:11
Sextant mount in B-36Gary LaPook3 Jul 2013, 06:05
Re: A-10 Sextant RestorationGary LaPook28 Jun 2013, 05:47
Re: A-10 Sextant RestorationGary LaPook28 Jun 2013, 05:37
Re: Celestial Flight navigation in KC-135Gary LaPook27 Jun 2013, 06:44
Re: Celestial Flight navigation in KC-135Gary LaPook27 Jun 2013, 05:47
Celestial Flight navigation in KC-135Gary LaPook25 Jun 2013, 10:19
Re: Full moon and ISSGary LaPook25 Jun 2013, 08:41
Re: FAA-H-8083-18 - Flight Navigator HandbookGary LaPook20 Jun 2013, 17:59
Re: FAA-H-8083-18 - Flight Navigator HandbookGary LaPook19 Jun 2013, 15:19
Re: FAA-H-8083-18 - Flight Navigator HandbookGary LaPook19 Jun 2013, 09:50
Re: FAA-H-8083-18 - Flight Navigator HandbookGary LaPook19 Jun 2013, 09:26
Re: FAA-H-8083-18 - Flight Navigator HandbookGary LaPook18 Jun 2013, 08:44
Re: FAA-H-8083-18 - Flight Navigator HandbookGary LaPook17 Jun 2013, 17:34
Re: HO-249 Epoch 2015 pdfGary LaPook17 Jun 2013, 04:56
Re: Watches as chronometersGary LaPook15 Jun 2013, 19:52
Re: Watches as chronometersGary LaPook15 Jun 2013, 19:49
Fw: Re: Watches as chronometers ( accidently sent out the previous)Gary LaPook15 Jun 2013, 17:49
Re: Watches as chronometersGary LaPook15 Jun 2013, 17:34
Re: FAA-H-8083-18 - Flight Navigator HandbookGary LaPook13 Jun 2013, 08:38
Re: FAA-H-8083-18 - Flight Navigator HandbookGary LaPook13 Jun 2013, 08:06
Re: FAA-H-8083-18 - Flight Navigator HandbookGary LaPook13 Jun 2013, 08:01
Re: FAA-H-8083-18 - Flight Navigator HandbookGary LaPook6 Jun 2013, 18:47
Re: Vintage Marine Waypoint Navigator/PlotterGary LaPook2 Jun 2013, 15:47
Re: Watches as chronometersGary LaPook31 May 2013, 21:50
Re: Watches as chronometers (correction)Gary LaPook31 May 2013, 16:19
Re: Watches as chronometers (correction)Gary LaPook31 May 2013, 07:42
Re: Slide rule choice, had been Shooting MercuryGary LaPook31 May 2013, 06:21
Re: Slide rule choice, had been Shooting MercuryGary LaPook31 May 2013, 06:00
Re: Watches as chronometers (correction)Gary LaPook31 May 2013, 05:17
Watches as chronometersGary LaPook31 May 2013, 05:09
Re: Shooting MercuryGary LaPook27 May 2013, 07:40
Shooting MercuryGary LaPook26 May 2013, 06:41
Sunday night sky showGary LaPook26 May 2013, 06:26
Polhemus computers available now on ebayGary LaPook15 May 2013, 03:19
Re: Admiral Byrd and the North PoleGary LaPook11 May 2013, 07:34
Re: Polaris correction tablesGary LaPook7 May 2013, 07:59
Re: Sunrise - the Positive SideGary LaPook7 May 2013, 00:08
Re: Mr. van Asten's method of measuring sunset with a bubble sextantGary LaPook6 May 2013, 23:47
Mr. van Asten's method of measuring sunset with a bubble sextantGary LaPook6 May 2013, 23:31
Re: Sunrise - the Positive SideGary LaPook6 May 2013, 23:23
Re: Sunrise - the Positive SideGary LaPook6 May 2013, 17:07
Re: Sunrise - the Positive SideGary LaPook5 May 2013, 23:08
Re: Scripps Pier, La Jolla, CaliforniaGary LaPook5 May 2013, 20:33
Re: Scripps Pier, La Jolla, CaliforniaGary LaPook5 May 2013, 20:05
Re: Scripps Pier, La Jolla, CaliforniaGary LaPook5 May 2013, 18:59
Re: Scripps Pier, La Jolla, CaliforniaGary LaPook5 May 2013, 18:39
Re: Precomputation- was Sun lines was Moonrise videoGary LaPook5 May 2013, 08:37
Re: Polaris correction tablesGary LaPook5 May 2013, 07:33
Re: Precomputation- was Sun lines was Moonrise videoGary LaPook5 May 2013, 06:48
Re: Polaris correction tablesGary LaPook5 May 2013, 06:35
Re: Precomputation- was Sun lines was Moonrise videoGary LaPook5 May 2013, 05:46
Re: Precomputation- was Sun lines was Moonrise videoGary LaPook4 May 2013, 22:32
Re: Precomputation- was Sun lines was Moonrise videoGary LaPook4 May 2013, 09:22
Re: Sun lines was Moonrise videoGary LaPook4 May 2013, 03:07
Re: Cugle - longitude at sunrise and sunsetGary LaPook4 May 2013, 02:00
Re: Sun lines was Moonrise videoGary LaPook4 May 2013, 01:35
Re: Cugle - longitude at sunrise and sunsetGary LaPook3 May 2013, 08:11
Re: Mr. van AstenGary LaPook3 May 2013, 07:35
Re: Mr. van AstenGary LaPook3 May 2013, 07:32
Re: Mr. van AstenGary LaPook3 May 2013, 07:27
Re: Cugle - longitude at sunrise and sunsetGary LaPook3 May 2013, 06:21
Re: Cugle - longitude at sunrise and sunsetGary LaPook2 May 2013, 10:11
Re: Cugle - longitude at sunrise and sunsetGary LaPook2 May 2013, 09:39
Re: Cugle - longitude at sunrise and sunsetGary LaPook2 May 2013, 09:32
Re: Cugle - longitude at sunrise and sunsetGary LaPook2 May 2013, 08:27
Re: Moonrise videoGary LaPook2 May 2013, 06:37
Re: Moonrise videoGary LaPook2 May 2013, 06:34
Re: Mr. van AstenGary LaPook2 May 2013, 06:29
Re: Mr. van AstenGary LaPook2 May 2013, 06:27
Re: Mr. van AstenGary LaPook2 May 2013, 05:45
Re: Mr. van AstenGary LaPook2 May 2013, 05:04
Re: Mr. van AstenGary LaPook2 May 2013, 04:20
Re: USCG Student Pub 229 Sight Reduction FormGary LaPook2 May 2013, 04:01
Mr. van AstenGary LaPook1 May 2013, 06:32
Re: Cugle - longitude at sunrise and sunsetGary LaPook1 May 2013, 06:17
Re: Moonrise videoGary LaPook1 May 2013, 06:00
Re: Moonrise videoGary LaPook1 May 2013, 05:49
Re: Moonrise videoGary LaPook1 May 2013, 05:46
Re: Cugle - longitude at sunrise and sunsetGary LaPook1 May 2013, 05:32
Re: Moonrise videoGary LaPook1 May 2013, 02:59
Re: Moonrise videoGary LaPook1 May 2013, 02:53
Re: Cugle - longitude at sunrise and sunsetGary LaPook1 May 2013, 02:50
Re: Cugle - longitude at sunrise and sunsetGary LaPook30 Apr 2013, 21:21
Re: Moonrise videoGary LaPook30 Apr 2013, 21:18
Re: Moonrise videoGary LaPook30 Apr 2013, 21:09
Re: Cugle - longitude at sunrise and sunsetGary LaPook30 Apr 2013, 20:33
Re: Moonrise videoGary LaPook30 Apr 2013, 18:49
Re: Moonrise videoGary LaPook30 Apr 2013, 15:47
Re: Moonrise videoGary LaPook30 Apr 2013, 15:17
Re: Moonrise videoGary LaPook29 Apr 2013, 07:15
Re: Moonrise videoGary LaPook29 Apr 2013, 07:08
Re: Moonrise videoGary LaPook25 Apr 2013, 05:25
Re: Moonrise videoGary LaPook24 Apr 2013, 08:15
Re: Moonrise videoGary LaPook21 Apr 2013, 05:24
Re: WrappingGary LaPook14 Apr 2013, 18:27
Re: WrappingGary LaPook14 Apr 2013, 18:26
Re: Text wrapping issuesGary LaPook14 Apr 2013, 18:24
Re: Distance Measurement - Tape vs GoogleGary LaPook12 Apr 2013, 06:14
ProblemGary LaPook10 Apr 2013, 04:43
Re: Text wrapping issuesGary LaPook8 Apr 2013, 08:06
Re: Which Method do you prefer using and why.Gary LaPook7 Apr 2013, 05:37
Re: Which Method do you prefer using and why.Gary LaPook5 Apr 2013, 05:18
Re: Probabilities & Estimations -- A ReviewGary LaPook5 Apr 2013, 04:19
Re: Which Method do you prefer using and why.Gary LaPook5 Apr 2013, 02:17
Re: Which Method do you prefer using and why.Gary LaPook4 Apr 2013, 04:54
Re: Which Method do you prefer using and why.Gary LaPook4 Apr 2013, 04:48
The Human Art of Way FindingGary LaPook2 Apr 2013, 06:31
Re: Geeks [slide] rule!Gary LaPook31 Mar 2013, 05:59
Re: Combine DR and celestial LOPGary LaPook26 Mar 2013, 17:57
Re: US. Navy fix accuracy and Interval.Gary LaPook26 Mar 2013, 14:24
Re: Fix Maximum Probability PositionsGary LaPook25 Mar 2013, 15:21
Re: The Accuracy of Astronomical Observations at SeaGary LaPook24 Mar 2013, 05:29
Re: The Accuracy of Astronomical Observations at SeaGary LaPook24 Mar 2013, 04:52
Re: Fix Maximum Probability PositionsGary LaPook22 Mar 2013, 05:49
Re: Fix Maximum Probability PositionsGary LaPook21 Mar 2013, 17:37
Re: Observing Celestial bodiesGary LaPook20 Mar 2013, 06:29
Re: Lies, damn lies, and statistics...Gary LaPook18 Mar 2013, 21:21
Re: More information about carrying a sextant with radiumGary LaPook17 Mar 2013, 23:07
More information about carrying a sextant with radiumGary LaPook17 Mar 2013, 15:59
Re: The Darn Old Cocked Hat - the sequel 1Gary LaPook15 Mar 2013, 15:36
Re: The Darn Old Cocked Hat - the sequel 1Gary LaPook14 Mar 2013, 06:33
Re: The Darn Old Cocked Hat - the sequel 1Gary LaPook13 Mar 2013, 23:00
Re: The Darn Old Cocked Hat - the sequel 1Gary LaPook13 Mar 2013, 07:06
Re: The Darn Old Cocked Hat - the sequel 1Gary LaPook13 Mar 2013, 05:42
Re: The Darn Old Cocked Hat - the sequel 1Gary LaPook13 Mar 2013, 05:10
Re: The Darn Old Cocked Hat - the sequel 1Gary LaPook13 Mar 2013, 05:01
Re: Advancing LOP's in surface Celnav.Gary LaPook13 Mar 2013, 04:20
Re: The Darn Old Cocked Hat - the sequel 1Gary LaPook13 Mar 2013, 04:15
Re: The Darn Old Cocked Hat - the sequel 1Gary LaPook12 Mar 2013, 07:25
Re: Refurbishing A Drift Sight/PelorusGary LaPook12 Mar 2013, 06:52
Re: Lean And Mean Bubble Sextant Sun SightGary LaPook12 Mar 2013, 04:31
Re: Lean And Mean Bubble Sextant Sun SightGary LaPook12 Mar 2013, 04:20
Re: Advancing LOP's in surface Celnav.Gary LaPook10 Mar 2013, 01:27
Re: Advancing LOP's in surface Celnav.Gary LaPook10 Mar 2013, 01:09
Re: Advancing LOP's in surface Celnav.Gary LaPook10 Mar 2013, 00:40
Re: Polhemus ComputerGary LaPook7 Mar 2013, 18:59
Fw: Viking sunstoneGary LaPook6 Mar 2013, 22:15
Re: Open Cockpit Sun Sights ExerciseGary LaPook6 Mar 2013, 22:14
Re: Hat Off To Gary LapookGary LaPook4 Mar 2013, 09:02
Re: Hat Off To Gary LapookGary LaPook4 Mar 2013, 08:36
Re: Hat Off To Gary LapookGary LaPook4 Mar 2013, 06:20
Re: Measuring (and Calculating) DipGary LaPook3 Mar 2013, 20:58
Re: P.V.H. Weems papersGary LaPook28 Feb 2013, 15:25
Re: Self Taught CelestialGary LaPook28 Feb 2013, 08:21
Re: Finally, a reasonable explanation for Earhart's failure to find HowlandGary LaPook26 Feb 2013, 06:05
Re: Finally, a reasonable explanation for Earhart's failure to find HowlandGary LaPook26 Feb 2013, 05:32
Finally, a reasonable explanation for Earhart's failure to find Howland islandGary LaPook21 Feb 2013, 21:56
Video of B-52 navigatorGary LaPook18 Feb 2013, 08:02
Re: Mauritius was: sunrise observation.Gary LaPook18 Feb 2013, 07:50
Very interesting article on NASM exhibit on navigation of Earhart flightGary LaPook15 Feb 2013, 22:40
Re: Primer of Navigation - MixterGary LaPook15 Feb 2013, 08:19
Re: Primer of Navigation - MixterGary LaPook15 Feb 2013, 01:54
Re: Primer of Navigation - MixterGary LaPook15 Feb 2013, 01:48
Re: Primer of Navigation - MixterGary LaPook15 Feb 2013, 01:46
Re: Primer of Navigation - MixterGary LaPook11 Feb 2013, 17:20
Re: HR1 Sliderule locking mechanism questionsGary LaPook11 Feb 2013, 01:51
Bygrave Locking DeviceGary LaPook11 Feb 2013, 01:16
Bygrave Locking DeviceGary LaPook11 Feb 2013, 01:08
Re: Weems article in latest Air&Space MagGary LaPook1 Feb 2013, 08:39
Re: Bygrave Scale Lengths-HR2 scalesGary LaPook31 Jan 2013, 10:38
Re: Bygrave Scale Lengths-HR2 scalesGary LaPook31 Jan 2013, 10:22
Re: Bygrave Scale LengthsGary LaPook31 Jan 2013, 09:05
Re: Bygrave Scale LengthsGary LaPook31 Jan 2013, 08:59
Re: Bygrave Scale LengthsGary LaPook30 Jan 2013, 23:33
Re: Bygrave Scale LengthsGary LaPook30 Jan 2013, 23:21
Re: F tables - "F-Tafel"Gary LaPook30 Jan 2013, 22:13
Re: Weems article in latest Air&Space MagGary LaPook30 Jan 2013, 22:05
Re: Weems article in latest Air&Space MagGary LaPook30 Jan 2013, 21:46
Re: Weems article in latest Air&Space MagGary LaPook30 Jan 2013, 10:05
Re: Bygrave Scale LengthsGary LaPook30 Jan 2013, 05:41
Re: Bygrave Scale LengthsGary LaPook30 Jan 2013, 05:37
Re: Weems article in latest Air&Space MagGary LaPook30 Jan 2013, 04:48
Re: Weems article in latest Air&Space MagGary LaPook30 Jan 2013, 04:42
Re: Bygrave Scale LengthsGary LaPook29 Jan 2013, 08:57
Re: Bygrave Scale LengthsGary LaPook29 Jan 2013, 08:48
Re: Bygrave Scale LengthsGary LaPook29 Jan 2013, 05:31
Re: Dennert & Pape MHR-1 Dennert & Pape MHR-1 HR-2Gary LaPook28 Jan 2013, 06:42
Re: Dennert & Pape MHR-1 Dennert & Pape MHR-1 HR-2Gary LaPook28 Jan 2013, 00:28
Re: Dennert & Pape MHR-1 Dennert & Pape MHR-1 HR-2 Cylindrical Slide LineRulerGary LaPook27 Jan 2013, 23:33
Re: bubble sextant in U-2Gary LaPook24 Jan 2013, 17:08
Re: bubble sextant in U-2Gary LaPook23 Jan 2013, 16:49
Re: Dennert & Pape MHR-1 Dennert & Pape MHR-1 HR-2 Cylindrical Slide LineRulerGary LaPook23 Jan 2013, 16:25
Re: Dennert & Pape MHR-1 Dennert & Pape MHR-1 HR-2 Cylindrical Slide LineRulerGary LaPook23 Jan 2013, 16:18
Re: THE RAFT BOOK by Gatty on eBayGary LaPook23 Jan 2013, 16:17
Re: Transatlantic on the Royal Clipper and celnavGary LaPook19 Jan 2013, 23:24
Re: NavList in the thin airGary LaPook15 Jan 2013, 11:01
Re: bubble sextant in U-2Gary LaPook13 Jan 2013, 08:14
Re: bubble sextant in U-2Gary LaPook12 Jan 2013, 06:19
Re: bubble sextant in U-2Gary LaPook12 Jan 2013, 05:33
Re: Yet another modified 2102-D star finderGary LaPook10 Jan 2013, 08:28
Re: Measure the Sun's diameterGary LaPook9 Jan 2013, 10:39
Re: Yet another modified 2102-D star finderGary LaPook8 Jan 2013, 10:07
Re: Yet another modified 2102-D star finderGary LaPook8 Jan 2013, 08:01
Re: Standard Deviation QuestionGary LaPook6 Jan 2013, 23:46
Re: Position from a photoGary LaPook27 Dec 2012, 17:23
Re: Weems above 65°Gary LaPook24 Dec 2012, 04:20
Re: Combining of Short Sight Reduction Tables into a Compact VolumeGary LaPook24 Dec 2012, 01:36
Re: Weems above 65°Gary LaPook24 Dec 2012, 01:08
Re: Navlist HeyGary LaPook20 Dec 2012, 02:45
Re: Recovering Time by Time SightGary LaPook18 Dec 2012, 17:27
Re: Precomp NavigationGary LaPook17 Dec 2012, 08:24
Re: Longitude by Time Sight Using a Slide RuleGary LaPook17 Dec 2012, 05:24
Re: Lost at SeaGary LaPook16 Dec 2012, 09:23
Re: Longitude by Time Sight...good enough at sea?Gary LaPook15 Dec 2012, 21:17
Re: Fw: Re: Ix Diagram and Pub 208Gary LaPook13 Dec 2012, 23:02
Re: Lost at SeaGary LaPook12 Dec 2012, 05:47
Re: Ix Diagram and Pub 208Gary LaPook12 Dec 2012, 05:35
Re: Ix Diagram and Pub 208Gary LaPook11 Dec 2012, 22:01
Re: Ix Diagram and Pub 208Gary LaPook11 Dec 2012, 21:57
Fw: Re: Air AlmanacGary LaPook11 Dec 2012, 16:12
Re: Lost at SeaGary LaPook10 Dec 2012, 05:53
Re: 013 Air almanac free to downloadGary LaPook8 Dec 2012, 01:43
Re: NP401 is no more :-(Gary LaPook8 Dec 2012, 01:27
Re: Plotting Sheet Construction by "T" PlotterGary LaPook7 Dec 2012, 11:24
Re: Protractors, was : Z vs ZnGary LaPook7 Dec 2012, 10:03
Re: Bowditch: Distance to visible horizonGary LaPook7 Dec 2012, 01:44
Re: Bowditch: Distance to visible horizonGary LaPook6 Dec 2012, 09:56
Re: Z vs ZnGary LaPook6 Dec 2012, 09:25
Re: Z vs ZnGary LaPook5 Dec 2012, 17:40
Fwd: Go for a sail?Gary LaPook1 Dec 2012, 23:30
Re: Course to steer at a given speed.Gary LaPook29 Nov 2012, 01:48
Re: Course to steer at a given speed.Gary LaPook28 Nov 2012, 12:14
Re: Visit beautiful Sandy Island...Gary LaPook23 Nov 2012, 21:14
Re: ADMIN: NavList needs moneyGary LaPook20 Nov 2012, 23:33
Re: Test your magnetic compass.Gary LaPook16 Nov 2012, 09:19
Re: Bounty Replica Sunk by SandyGary LaPook16 Nov 2012, 02:29
Re: Bounty Replica Sunk by SandyGary LaPook15 Nov 2012, 23:02
Re: Test your magnetic compass.Gary LaPook15 Nov 2012, 17:23
Re: NP303 VOL2 covers 0-49 degree declination? vs. PUB/HO 249 VOL2 0-29 deg dec?Gary LaPook15 Nov 2012, 05:18
Re: NP303 VOL2 covers 0-49 degree declination? vs. PUB/HO 249 VOL2 0-29 deg dec?Gary LaPook15 Nov 2012, 04:49
Re: PolhemusGary LaPook13 Nov 2012, 02:35
Re: PolhemusGary LaPook13 Nov 2012, 02:28
Re: Trans AtlanticGary LaPook11 Nov 2012, 18:43
Re: Trans AtlanticGary LaPook11 Nov 2012, 18:14
Re: Advance LOP of High Speed VesselGary LaPook9 Nov 2012, 10:04
Re: Advance LOP of High Speed VesselGary LaPook9 Nov 2012, 03:27
Re: Advance LOP of High Speed VesselGary LaPook9 Nov 2012, 03:21
Re: Accuracy of backpacking compassGary LaPook8 Nov 2012, 21:07
Re: Star Finder 2102-D Red TemplateGary LaPook8 Nov 2012, 06:29
Re: Accuracy of backpacking compassGary LaPook5 Nov 2012, 16:53
Re: A-5 and A-7 sextant manualGary LaPook3 Oct 2012, 05:37
Re: A-5 and A-7 sextant manualGary LaPook3 Oct 2012, 05:30
Re: A-5 and A-7 sextant manualGary LaPook3 Oct 2012, 05:25
Re: A-5 and A-7 sextant manualGary LaPook3 Oct 2012, 05:11
Re: A-5 and A-7 sextant manualGary LaPook3 Oct 2012, 05:08
Re: Time BallGary LaPook30 Sep 2012, 05:28
Re: stange results from AM and PM sun shotsGary LaPook28 Sep 2012, 07:19
Re: stange results from AM and PM sun shotsGary LaPook27 Sep 2012, 18:18
Re: prices of N.A.Gary LaPook24 Sep 2012, 00:50
Re: prices of N.A.Gary LaPook23 Sep 2012, 17:40
Re: was prices of N.A. now, does anyone use the Air Almanac?Gary LaPook23 Sep 2012, 02:07
Re: prices of N.A.Gary LaPook22 Sep 2012, 21:34
Re: prices of N.A.Gary LaPook22 Sep 2012, 21:26
Prices of N.A.Gary LaPook22 Sep 2012, 03:59
Re: problems with a mirror ah compared to a Davis Artificial HorizonGary LaPook14 Sep 2012, 22:06
Re: Moon shot with artificial horizonGary LaPook3 Sep 2012, 04:23
Re: Moon shot with artificial horizonGary LaPook2 Sep 2012, 20:42
Re: Moon shot with artificial horizonGary LaPook2 Sep 2012, 17:59
Moon shot with artificial horizonGary LaPook2 Sep 2012, 05:38
Re: Water on board/grogGary LaPook1 Sep 2012, 06:38
Re: Finding longitude in the 12th centuryGary LaPook1 Sep 2012, 06:16
Re: Finding longitude in the 12th centuryGary LaPook1 Sep 2012, 04:20
Re: Finding longitude in the 12th centuryGary LaPook31 Aug 2012, 07:48
Re: Earhart discovery?Gary LaPook28 Aug 2012, 22:04
Re: Earhart discovery?Gary LaPook27 Aug 2012, 09:02
Re: Earhart discovery?Gary LaPook27 Aug 2012, 08:07
Re: Earhart discovery?Gary LaPook26 Aug 2012, 09:24
Re: Earhart discovery?Gary LaPook25 Aug 2012, 05:20
Re: Sextant shot accuracyGary LaPook21 Aug 2012, 19:57
Re: Sextant shot accuracyGary LaPook21 Aug 2012, 19:43
Sextant shot accuracyGary LaPook21 Aug 2012, 06:56
Re: Earhart discovery?Gary LaPook21 Aug 2012, 05:04
Re: Earhart discovery?Gary LaPook21 Aug 2012, 05:01
Re: Earhart discovery?Gary LaPook20 Aug 2012, 16:47
Re: Longitude shift on NOAA charts vs. Google EarthGary LaPook14 Aug 2012, 19:07
Re: Longitude shift on NOAA charts vs. Google EarthGary LaPook14 Aug 2012, 17:41
Re: Longitude shift on NOAA charts vs. Google EarthGary LaPook14 Aug 2012, 17:33
Re: NP303 VOL2 covers 0-49 degree declination? vs. PUB/HO 249 VOL2 0-29 deg dec?Gary LaPook12 Aug 2012, 17:22
Equallateral triangleGary LaPook8 Aug 2012, 06:08
Re: Sunset InterceptsGary LaPook4 Aug 2012, 12:09
Re: Abhav sightreduction?Gary LaPook1 Aug 2012, 22:19
Re: Abhav sightreduction?Gary LaPook1 Aug 2012, 16:28
Re: Learn Celestial NavigationGary LaPook20 Jul 2012, 02:32
Re: Emergency NavigationGary LaPook20 Jul 2012, 02:28
Re: response to my question about angles between LOP'sGary LaPook19 Jul 2012, 19:21
Re: Emergency NavigationGary LaPook19 Jul 2012, 04:47
Re: Emergency NavigationGary LaPook18 Jul 2012, 20:45
Re: Emergency NavigationGary LaPook18 Jul 2012, 07:32
Re: pilot chartsGary LaPook18 Jul 2012, 06:40
Re: angles betwqeen lines of positionGary LaPook18 Jul 2012, 05:56
Re: pilot chartsGary LaPook17 Jul 2012, 03:38
Re: Emergency NavigationGary LaPook15 Jul 2012, 20:44
Re: Emergency NavigationGary LaPook15 Jul 2012, 20:40
Re: Emergency NavigationGary LaPook15 Jul 2012, 06:32
Re: Emergency NavigationGary LaPook15 Jul 2012, 01:37
Re: Emergency NavigationGary LaPook14 Jul 2012, 06:22
Re: Emergency Navigation Was: Black boxes in navigation Now:Gary LaPook14 Jul 2012, 06:12
Re: Emergency Navigation Was: Black boxes in navigation Now:Gary LaPook13 Jul 2012, 05:42
Re: Emergency Navigation Was: Black boxes in navigation Now:Gary LaPook13 Jul 2012, 02:48
An astrocompass used in flightGary LaPook2 Jul 2012, 09:10
Pioneer octant used in flightGary LaPook2 Jul 2012, 09:06
Re: Leap second todayGary LaPook2 Jul 2012, 02:46
Re: Leap second todayGary LaPook1 Jul 2012, 23:03
Re: Moon observations in flightGary LaPook1 Jul 2012, 10:03
Re: Leap second todayGary LaPook1 Jul 2012, 00:51
Re: Leap second todayGary LaPook30 Jun 2012, 20:53
Re: Leap second todayGary LaPook30 Jun 2012, 20:52
Re: ADMIN: uploaded/attached file namesGary LaPook30 Jun 2012, 00:44
Moon observations in flightGary LaPook29 Jun 2012, 03:38
Moon observations in flightGary LaPook28 Jun 2012, 20:25
Re: London Science MuseumGary LaPook27 Jun 2012, 08:08
Re: London Science MuseumGary LaPook27 Jun 2012, 01:55
Re: A break in the clouds!Gary LaPook7 Jun 2012, 19:16
Re: A break in the clouds!Gary LaPook6 Jun 2012, 09:23
Transit of venus tomorrow, don't miss it, you won't get another chance.Gary LaPook5 Jun 2012, 04:48
Re: Transit of Venus PicturesGary LaPook24 May 2012, 06:51
Re: partial eclipseGary LaPook24 May 2012, 06:50
Re: Transit of Venus PicturesGary LaPook24 May 2012, 06:46
Re: Transit of Venus PicturesGary LaPook24 May 2012, 01:21
Re: partial eclipseGary LaPook21 May 2012, 16:59
Partial eclipseGary LaPook21 May 2012, 08:05
Re: Accuracy of the Time SightGary LaPook20 May 2012, 19:43
Re: Bowditch long term almanacGary LaPook20 May 2012, 01:15
Re: Sextant 1090 International - Never UsedGary LaPook15 May 2012, 14:28
Re: GPS InterferenceGary LaPook14 May 2012, 23:58
Re: Radioactivity againGary LaPook13 May 2012, 21:11
Radioactivity againGary LaPook13 May 2012, 20:39
Re: MoonriseGary LaPook11 May 2012, 07:37
Re: AN5954 bubble octant by Bausch and LombGary LaPook9 May 2012, 08:10
Re: AN5954 bubble octant by Bausch and LombGary LaPook8 May 2012, 17:11
Re: Longitude by SunsetGary LaPook8 May 2012, 16:55
Re: AN5954 bubble octant by Bausch and LombGary LaPook8 May 2012, 09:20
Re: Longitude by SunsetGary LaPook8 May 2012, 07:52
Re: Instrument for solving spherical trianglesGary LaPook7 May 2012, 04:34
Re: Longitude by SunsetGary LaPook7 May 2012, 02:53
Re: Longitude by SunsetGary LaPook7 May 2012, 00:59
Re: Longitude by SunsetGary LaPook6 May 2012, 20:00
Re: Daytime Venus Rising Dip ShortGary LaPook6 May 2012, 18:58
Re: Longitude by SunsetGary LaPook6 May 2012, 18:46
Re: Daytime Venus Rising Dip ShortGary LaPook6 May 2012, 09:16
Re: Daytime Venus Rising Dip ShortGary LaPook6 May 2012, 09:11
Re: Daytime Venus Rising Dip ShortGary LaPook6 May 2012, 04:59
Re: Pilot avoids collision with VenusGary LaPook6 May 2012, 03:26
Re: Pilot avoids collision with VenusGary LaPook6 May 2012, 00:41
Re: Pilot avoids collision with VenusGary LaPook5 May 2012, 08:35
Re: Daytime Venus Rising Dip ShortGary LaPook5 May 2012, 07:58
Re: Daytime Venus Rising Dip ShortGary LaPook5 May 2012, 07:57
Re: AN5954 bubble octant by Bausch and LombGary LaPook5 May 2012, 07:33
Re: AN5954 bubble octant by Bausch and LombGary LaPook4 May 2012, 22:11
Re: Daytime Venus Rising Dip ShortGary LaPook4 May 2012, 07:48
Re: Navy MK 5 Octant Using Natural HorizonGary LaPook2 May 2012, 21:35
SupermoonGary LaPook1 May 2012, 21:36
Re: Bowditch (2002) Table 17Gary LaPook1 May 2012, 09:46
Re: Bowditch (2002) Table 17Gary LaPook1 May 2012, 06:06
Re: Pilot avoids collision with VenusGary LaPook30 Apr 2012, 21:50
Re: Pilot avoids collision with VenusGary LaPook29 Apr 2012, 10:09
Re: Another sight reduction analog deviceGary LaPook28 Apr 2012, 07:32
Re: Instrument for solving sphericGary LaPook27 Apr 2012, 06:14
Re: Instrument for solving spherical trianglesGary LaPook26 Apr 2012, 06:27
Re: Magne-Plot in-flight plotterGary LaPook26 Apr 2012, 01:30
Re: Mechanical vs. QuartzGary LaPook22 Apr 2012, 18:26
Re: watch faceGary LaPook22 Apr 2012, 18:22
Re: watch faceGary LaPook22 Apr 2012, 06:51
Re: watch faceGary LaPook22 Apr 2012, 06:45
Re: Unistar Principle etc.Gary LaPook21 Apr 2012, 08:49
Re: Pilot avoids collision with VenusGary LaPook19 Apr 2012, 07:21
Re: Pilot avoids collision with VenusGary LaPook19 Apr 2012, 01:04
Re: Pilot avoids collision with VenusGary LaPook18 Apr 2012, 17:25
Re: Pilot avoids collision with VenusGary LaPook18 Apr 2012, 17:20
Re: Pilot avoids collision with VenusGary LaPook18 Apr 2012, 09:36
Re: interesting navigational deviceGary LaPook17 Apr 2012, 05:01
Bygrave at NASMGary LaPook16 Apr 2012, 10:16
Interesting navigational deviceGary LaPook16 Apr 2012, 10:14
Refraction at altitudeGary LaPook16 Apr 2012, 08:17
Re: Newfoundland and the Pilot Chart.Gary LaPook16 Apr 2012, 04:40
Re: Submarines in museums or otherwise preserved.Gary LaPook13 Apr 2012, 18:26
Re: Discussion of subs/INSGary LaPook13 Apr 2012, 09:19
Re: Missile SubsGary LaPook12 Apr 2012, 19:48
Re: Cel Nav and missile submarinesGary LaPook12 Apr 2012, 04:37
Re: Cel Nav and missile submarinesGary LaPook12 Apr 2012, 04:35
Re: Dip-meter againGary LaPook12 Apr 2012, 00:53
Re: Cel Nav and missile submarinesGary LaPook11 Apr 2012, 21:56
Re: Non Electronic Sight ReductionGary LaPook11 Apr 2012, 10:14
Re: Dip-meter againGary LaPook11 Apr 2012, 10:10
Re: Cel Nav and missile submarinesGary LaPook11 Apr 2012, 09:48
Re: Cel Nav and missile submarinesGary LaPook11 Apr 2012, 09:34
Re: Dip-meter againGary LaPook10 Apr 2012, 21:23
Re: Dip-meter againGary LaPook10 Apr 2012, 21:12
Re: NA sight reduction tables - a considered response from NavList to the NA office?Gary LaPook10 Apr 2012, 21:10
Re: Dip-meter againGary LaPook10 Apr 2012, 19:47
Re: Dip-meter againGary LaPook10 Apr 2012, 19:42
Re: Dip-meter againGary LaPook10 Apr 2012, 19:36
Re: Talking to "Official" Authorities [was] Re: NA sight reduction tables ...///...Gary LaPook10 Apr 2012, 09:58
Re: Why are NA sight reduction tables notGary LaPook9 Apr 2012, 22:26
Re: Hacked emailGary LaPook9 Apr 2012, 21:55
Re: Dip-meter againGary LaPook9 Apr 2012, 10:55
Re: Why are NA sight reduction tables not popular?Gary LaPook9 Apr 2012, 08:47
Re: Why are NA sight reduction tables not popular?Gary LaPook9 Apr 2012, 08:41
Re: Why are NA sight reduction tables not popular?Gary LaPook9 Apr 2012, 08:29
Re: Why are NA sight reduction tables notGary LaPook9 Apr 2012, 07:38
Re: Why are NA sight reduction tables not popular?Gary LaPook8 Apr 2012, 22:50
Re: Why are NA sight reduction tables not popular?Gary LaPook8 Apr 2012, 22:17
Re: slide rule sight reduction accuracyGary LaPook8 Apr 2012, 21:27
Re: slide rule sight reduction accuracyGary LaPook8 Apr 2012, 21:18
Re: Why are NA sight reduction tables notGary LaPook8 Apr 2012, 21:16
Re: Why are NA sight reduction tables notGary LaPook8 Apr 2012, 18:36
Re: GPS InterferenceGary LaPook6 Apr 2012, 09:20
Re: A basic sight reduction questionGary LaPook4 Apr 2012, 21:03
Re: A basic sight reduction questionGary LaPook4 Apr 2012, 20:53
Re: A basic sight reduction questionGary LaPook4 Apr 2012, 16:44
Re: Dip-meter againGary LaPook29 Mar 2012, 08:35
Re: Dip-meter againGary LaPook29 Mar 2012, 05:21
Re: problems with artifical horizonsGary LaPook20 Mar 2012, 21:30
Re: problems with artifical horizonsGary LaPook20 Mar 2012, 21:22
Re: Extremely poor conditions??Gary LaPook20 Mar 2012, 14:34
Re: Online sight reduction and a question to FrankGary LaPook19 Mar 2012, 22:30
Re: Corrections for use of artificial horizon at 1,000' MSL?Gary LaPook14 Mar 2012, 00:57
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook13 Mar 2012, 16:58
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook13 Mar 2012, 11:57
Re: Corrections for use of artificial horizon at 1,000' MSL?Gary LaPook13 Mar 2012, 09:44
Re: The Navigation FoundationGary LaPook13 Mar 2012, 09:34
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook13 Mar 2012, 09:32
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook13 Mar 2012, 09:26
Re: CN Aboard Commercial FlightGary LaPook12 Mar 2012, 01:09
Re: Sextant Vernier Scale (correction)Gary LaPook10 Mar 2012, 01:51
Re: Sextant Vernier ScaleGary LaPook10 Mar 2012, 01:40
Re: About time - AntarcticaGary LaPook6 Mar 2012, 05:43
Re: About time - AntarcticaGary LaPook6 Mar 2012, 02:38
Re: About time - AntarcticaGary LaPook5 Mar 2012, 22:57
Re: About time - AntarcticaGary LaPook5 Mar 2012, 17:53
Re: About time - AntarcticaGary LaPook5 Mar 2012, 17:27
Re: Radio Clock or Internet GMT - which should I believe?Gary LaPook3 Mar 2012, 01:16
Re: Gary LaPook's Digital Watch ExperimentGary LaPook1 Mar 2012, 03:06
Re: GPS InterferenceGary LaPook28 Feb 2012, 20:43
Re: MHR1 replica and is my GPS wrong?Gary LaPook28 Feb 2012, 08:17
Re: Box Sextant and "Natural Tangents to a Base of 100"?Gary LaPook20 Feb 2012, 23:03
Re: Graphic methodGary LaPook17 Feb 2012, 22:15
Re: What Watch Features for Celestial Navigation?Gary LaPook17 Feb 2012, 08:00
Re: What Watch Features for Celestial Navigation?Gary LaPook17 Feb 2012, 07:51
Re: Mean Solar into Sidereal TimeGary LaPook17 Feb 2012, 06:10
Re: Home made level vial observation resultsGary LaPook14 Feb 2012, 04:58
Re: Compass directions and "North by Northwest"Gary LaPook13 Feb 2012, 17:42
Re: WW II TM 1-206 Technical Manual (Celestial Air Navigation) on EBayGary LaPook12 Feb 2012, 23:12
Re: Mechanical Maneuvering Board instructionsGary LaPook12 Feb 2012, 04:01
Re: Mechanical Maneuvering Board instructionsGary LaPook12 Feb 2012, 00:42
Re: Mechanical Maneuvering Board instructionsGary LaPook11 Feb 2012, 21:55
Re: Mechanical Maneuvering Board instructionsGary LaPook11 Feb 2012, 09:44
Re: What Watch Features for Celestial Navigation?Gary LaPook10 Feb 2012, 08:32
Re: A credible AIS track for the Costa ConcordiaGary LaPook24 Jan 2012, 18:02
Re: Astro compass Mk11 - 6A/1174Gary LaPook22 Jan 2012, 08:58
Re: Looking but not seeingGary LaPook21 Jan 2012, 19:35
Re: CN Aboard Commercial FlightGary LaPook18 Jan 2012, 07:34
Re: Turkish AIS Data--It appears the ship did pass between thetwo rocksGary LaPook16 Jan 2012, 17:32
Re: on orientation of an artificial horizonGary LaPook11 Jan 2012, 06:40
Re: Having troubleGary LaPook9 Jan 2012, 10:24
Re: Closest point of approach.Gary LaPook3 Jan 2012, 11:49
Re: Closest point of approach.Gary LaPook3 Jan 2012, 10:50
Re: Closest point of approach.Gary LaPook3 Jan 2012, 01:03
Re: Admin: text-only messages, annual indexes, author-specific indexes, and moreGary LaPook2 Jan 2012, 07:17
Re: 2012Gary LaPook1 Jan 2012, 19:03
Re: Re George HuxtableGary LaPook1 Jan 2012, 07:27
Re: George HuxtableGary LaPook1 Jan 2012, 06:37
Re: George HuxtableGary LaPook1 Jan 2012, 06:04
That pesky datline againGary LaPook29 Dec 2011, 20:03
Re: T-PlotterGary LaPook29 Dec 2011, 07:00
Re: Closest point of approach.Gary LaPook27 Dec 2011, 09:11
Fw: More on GPS vulnerabilitiesGary LaPook17 Dec 2011, 01:52
Re: Position discrepancyGary LaPook14 Dec 2011, 01:39
Re: Position discrepancyGary LaPook14 Dec 2011, 01:16
Re: Position discepancyGary LaPook13 Dec 2011, 22:04
Re: Position discepancyGary LaPook13 Dec 2011, 21:00
Re: Commercial Flight CNGary LaPook11 Dec 2011, 23:18
Re: re recent posts on the slide ruleGary LaPook5 Dec 2011, 23:13
Re: Sight reduction formulaeGary LaPook1 Dec 2011, 23:34
Re: A celestial navigation problemGary LaPook30 Nov 2011, 17:14
Re: A celestial navigation problemGary LaPook29 Nov 2011, 07:13
Re: A celestial navigation problemGary LaPook29 Nov 2011, 03:23
Re: AN-5851-1 RepairGary LaPook28 Nov 2011, 18:27
Re: Selection of slide rules, compendium of messagesGary LaPook26 Nov 2011, 08:53
Re: Selection of slide rules, compendium of messagesGary LaPook26 Nov 2011, 08:44
Re: Selection of slide rules, compendium of messagesGary LaPook26 Nov 2011, 07:49
Re: recommendation for slide rule ?Gary LaPook26 Nov 2011, 05:10
Re: Selection of slide rules, compendium of messagesGary LaPook24 Nov 2011, 21:21
Re: underwater lightning?Gary LaPook24 Nov 2011, 18:23
Selection of slide rules, compendium of messagesGary LaPook24 Nov 2011, 06:36
Re: Polhemus computers available at e-bay nowGary LaPook18 Nov 2011, 21:04
Re: Polhemus computers available at e-bay nowGary LaPook18 Nov 2011, 04:34
Polhemus computers available at e-bay nowGary LaPook17 Nov 2011, 22:10
Re: 2012 nautical almanacGary LaPook17 Nov 2011, 21:59
Re: A celestial navigation problemGary LaPook17 Nov 2011, 19:15
Re: A celestial navigation problemGary LaPook17 Nov 2011, 19:08
Re: A celestial navigation problemGary LaPook17 Nov 2011, 18:52
Re: A celestial navigation problemGary LaPook17 Nov 2011, 09:18
Re: set and drift....againGary LaPook12 Nov 2011, 18:13
Re: set and drift....againGary LaPook12 Nov 2011, 18:07
Re: set and drift....againGary LaPook12 Nov 2011, 00:38
Re: set and drift....againGary LaPook12 Nov 2011, 00:34
Re: Set and driftGary LaPook9 Nov 2011, 09:10
Re: Set and driftGary LaPook6 Nov 2011, 19:39
Re: Set and driftGary LaPook6 Nov 2011, 07:01
Re: Set and driftGary LaPook6 Nov 2011, 06:51
Re: Two mirror a.h.Gary LaPook3 Nov 2011, 00:42
Re: The time zone of GreenwichGary LaPook31 Oct 2011, 01:51
Re: The time zone of GreenwichGary LaPook30 Oct 2011, 20:24
Re: The time zone of GreenwichGary LaPook30 Oct 2011, 20:06
Time zone map websiteGary LaPook30 Oct 2011, 02:05
Re: Two mirror a.h.Gary LaPook27 Oct 2011, 06:04
Re: Marean-Kielhorn DirectorGary LaPook27 Oct 2011, 00:29
Re: Time zone confusionGary LaPook25 Oct 2011, 21:53
Re: GPS InterferenceGary LaPook19 Oct 2011, 05:33
Date line changesGary LaPook15 Oct 2011, 20:07
Ditching at seaGary LaPook15 Oct 2011, 05:52
Re: Horizon filters not dark enough for a.h.Gary LaPook14 Oct 2011, 17:35
Re: The new guy on the horizon...Gary LaPook10 Oct 2011, 23:16
Re: The new guy on the horizon...Gary LaPook10 Oct 2011, 22:21
Re: The new guy on the horizon...Gary LaPook10 Oct 2011, 22:19
Re: The new guy on the horizon...Gary LaPook10 Oct 2011, 22:17
Re: The new guy on the horizon...Gary LaPook10 Oct 2011, 22:03
Re: The new guy on the horizon...Gary LaPook10 Oct 2011, 21:52
Re: Hello againGary LaPook10 Oct 2011, 03:46
Watches as chronometersGary LaPook9 Oct 2011, 06:12
Re: Hello againGary LaPook8 Oct 2011, 17:41
Uploaded documents from LaPookGary LaPook8 Oct 2011, 17:01
Re: Document available on this websiteGary LaPook8 Oct 2011, 04:56
Re: Use of AH for professional navigationGary LaPook6 Oct 2011, 18:35
Re: Document available on this websiteGary LaPook6 Oct 2011, 09:52
Document available on this websiteGary LaPook6 Oct 2011, 09:17
Re: Use of AH for professional navigationGary LaPook6 Oct 2011, 09:12
Re: Use of AH for professional navigationGary LaPook6 Oct 2011, 07:53
Re: Use of AH for professional navigationGary LaPook6 Oct 2011, 06:17
Re: Hello PolhemusGary LaPook5 Oct 2011, 20:54
Re: Home made artificial horizonGary LaPook5 Oct 2011, 20:31
Re: Home made artificial horizonGary LaPook5 Oct 2011, 20:21
Re: Home made artificial horizonGary LaPook5 Oct 2011, 20:16
Re: Home made artificial horizonGary LaPook5 Oct 2011, 20:11
Re: Home made artificial horizonGary LaPook5 Oct 2011, 15:57
Re: Home made artificial horizonGary LaPook5 Oct 2011, 05:45
Re: Home made artificial horizonGary LaPook5 Oct 2011, 03:47
Re: Home made artificial horizonGary LaPook5 Oct 2011, 03:00
Re: Home made artificial horizonGary LaPook5 Oct 2011, 01:47
Re: Home made artificial horizonGary LaPook4 Oct 2011, 22:59
Re: Home made artificial horizonGary LaPook4 Oct 2011, 22:56
Re: Home made artificial horizonGary LaPook4 Oct 2011, 22:49
Re: Home made artificial horizonGary LaPook4 Oct 2011, 22:46
Re: Home made artificial horizonGary LaPook4 Oct 2011, 22:38
Re: Home made artificial horizonGary LaPook4 Oct 2011, 22:14
Re: Home made artificial horizonGary LaPook4 Oct 2011, 20:15
Re: Home made artificial horizonGary LaPook4 Oct 2011, 17:31
Re: Home made artificial horizonGary LaPook4 Oct 2011, 17:17
Re: Home made artificial horizonGary LaPook4 Oct 2011, 05:29
Re: Home made artificial horizonGary LaPook4 Oct 2011, 02:49
Re: Home made artificial horizonGary LaPook3 Oct 2011, 16:39
Re: Home made artificial horizonGary LaPook3 Oct 2011, 10:55
Test 3Gary LaPook3 Oct 2011, 02:04
Re: Home made artificial horizonGary LaPook2 Oct 2011, 03:23
Re: Home made artificial horizonGary LaPook2 Oct 2011, 00:30
Re: Home made artificial horizonGary LaPook1 Oct 2011, 04:21
Re: Home made artificial horizonGary LaPook29 Sep 2011, 18:11
Re: GPS InterferenceGary LaPook29 Sep 2011, 17:31
Re: GPS InterferenceGary LaPook28 Sep 2011, 01:06
Re: Accuracy and sources of timeGary LaPook28 Sep 2011, 00:43
Re: GPS InterferenceGary LaPook18 Sep 2011, 22:20
Re: GPS InterferenceGary LaPook18 Sep 2011, 18:30
Re: GPS InterferenceGary LaPook18 Sep 2011, 07:50
Re: GPS InterferenceGary LaPook17 Sep 2011, 17:22
Re: GPS InterferenceGary LaPook17 Sep 2011, 17:08
Re: GPS InterferenceGary LaPook17 Sep 2011, 05:27
Re: GPS InterferenceGary LaPook16 Sep 2011, 15:47
Re: GPS InterferenceGary LaPook16 Sep 2011, 07:24
Re: GPS InterferenceGary LaPook15 Sep 2011, 21:09
Re: GPS InterferenceGary LaPook15 Sep 2011, 19:43
Re: Navigation in the Royal NavyGary LaPook15 Sep 2011, 18:41
Re: Navigation in the Royal NavyGary LaPook15 Sep 2011, 18:38
Polhemus computer now on Ebay, starting bid, $15Gary LaPook13 Sep 2011, 21:46
Re: Dropping leap seconds and the impact on celestial navigationGary LaPook11 Sep 2011, 08:48
Re: When is the Autumnal Equinox?Gary LaPook3 Sep 2011, 17:52
Kollsman sextant mountGary LaPook30 Aug 2011, 06:48
Kollsman periscopic sextant mountGary LaPook19 Aug 2011, 02:00
Re: Radler de Aquino and Arthur A. AgetonGary LaPook17 Aug 2011, 08:47
Re: Sextant-on-stick?Gary LaPook13 Aug 2011, 17:58
Re: Using the 2102-D for presetting the sextant.Gary LaPook4 Aug 2011, 17:38
Re: Kollsman periscopic sextant mount AFNOA has 5 models of D-1Gary LaPook4 Aug 2011, 09:41
Using the 2102-D for presetting the sextant.Gary LaPook4 Aug 2011, 09:17
Re: Increased dip for "Nearer" Horizon or Level LineGary LaPook27 Jul 2011, 06:20
Re: Personal note from George: with - Re: When did "timesights" fade away?Gary LaPook25 Jul 2011, 06:00
Re: solutions/explainations for the following would be appreciatredGary LaPook25 Jul 2011, 04:54
Re: When did "time sights" fade away?Gary LaPook21 Jul 2011, 17:26
Re: When did "time sights" fade away?Gary LaPook19 Jul 2011, 07:19
Re: When did "time sights" fade away?Gary LaPook19 Jul 2011, 06:40
Re: When did "time sights" fade away?Gary LaPook17 Jul 2011, 07:30
Re: Sextant and Sun Dial on TV's White CollarGary LaPook17 Jul 2011, 06:21
Re: Sextant and Sun Dial on TV's White CollarGary LaPook17 Jul 2011, 06:18
Re: When did "time sights" fade away?Gary LaPook16 Jul 2011, 07:08
Re: When did "time sights" fade away?Gary LaPook16 Jul 2011, 05:32
Re: GPS InterferenceGary LaPook15 Jul 2011, 00:58
Re: When did "time sights" fade away?Gary LaPook12 Jul 2011, 08:00
Re: International Date Line --invented by SchedlerGary LaPook7 Jul 2011, 22:42
Re: Small Craft CN Using Hp GraphGary LaPook30 Jun 2011, 18:25
Re: Comparison of tabular sight reduction methodsGary LaPook30 Jun 2011, 17:06
Re: Comparison of tabular sight reduction methodsGary LaPook30 Jun 2011, 00:51
Comparison of tabular sight reduction methodsGary LaPook28 Jun 2011, 22:46
H.O. 218 evaluationGary LaPook27 Jun 2011, 20:24
Re: Moonrise on June 17-19Gary LaPook27 Jun 2011, 02:39
Re: Moonrise on June 17-19Gary LaPook27 Jun 2011, 02:13
Re: Preserving Hs and Time with CameraGary LaPook25 Jun 2011, 19:44
Re: Need dip-throw a rock?Gary LaPook23 Jun 2011, 00:36
Re: Need dip-throw a rock?Gary LaPook23 Jun 2011, 00:29
Re: Need dip-throw a rock?Gary LaPook21 Jun 2011, 01:12
Re: Need dip-throw a rock?Gary LaPook21 Jun 2011, 01:11
Re: Jack Aubrey's fixing of longitudeGary LaPook20 Jun 2011, 05:39
Re: A 10 A manualGary LaPook20 Jun 2011, 01:27
Re: Jack Aubrey's fixing of longitudeGary LaPook19 Jun 2011, 21:54
Re: Jack Aubrey's fixing of longitudeGary LaPook19 Jun 2011, 19:57
Re: A Voyage in Southern SeasGary LaPook14 Jun 2011, 17:14
Re: A Voyage in Southern SeasGary LaPook13 Jun 2011, 06:04
Re: Warner Plotter ComputerGary LaPook8 Jun 2011, 07:07
Re: Wonderful Lunar Method by Sir F. Chichester addressed here before ?Gary LaPook7 Jun 2011, 17:06
Re: Kollsman periscopic sextant mountGary LaPook6 Jun 2011, 07:23
Re: Another rhumb line puzzleGary LaPook6 Jun 2011, 04:25
Re: Another rhumb line puzzleGary LaPook6 Jun 2011, 03:13
Re: Another rhumb line puzzleGary LaPook6 Jun 2011, 02:02
Re: Another rhumb line puzzleGary LaPook5 Jun 2011, 21:41
Re: Another rhumb line puzzleGary LaPook5 Jun 2011, 19:31
Re: Mileage of rhumb line compared to mileage of great circleGary LaPook5 Jun 2011, 19:00
Re: GPS puzzleGary LaPook5 Jun 2011, 03:27
Re: GPS puzzleGary LaPook5 Jun 2011, 03:22
Re: GPS puzzleGary LaPook5 Jun 2011, 03:15
Re: Mileage of rhumb line compared to mileage of great circleGary LaPook5 Jun 2011, 03:02
Re: GPS puzzleGary LaPook4 Jun 2011, 20:49
Re: Mileage of rhumb line compared to mileage of great circleGary LaPook4 Jun 2011, 03:55
Re: Mileage of rhumb line compared to mileage of great circleGary LaPook4 Jun 2011, 03:32
Mileage of rhumb line compared to mileage of great circleGary LaPook3 Jun 2011, 23:23
Re: Hello PolhemusGary LaPook1 Jun 2011, 18:32
Re: a question of time or timesGary LaPook30 May 2011, 08:52
Re: Latitude Sailing QuestionGary LaPook29 May 2011, 22:46
Re: a question of time or timesGary LaPook29 May 2011, 22:20
Re: a question of time or timesGary LaPook29 May 2011, 22:19
Test message via emailGary LaPook27 May 2011, 21:45
Fw: Shooting Polaris with a bubble sextantGary LaPook27 May 2011, 21:44
Test no messages in two daysGary LaPook27 May 2011, 19:25
Alternate theories on Noonan's navigationGary LaPook25 May 2011, 10:12
Timing sextant sightsGary LaPook25 May 2011, 08:21
Timing sextant sightsGary LaPook25 May 2011, 08:12
Re: Kollsman periscopic sextant mountGary LaPook24 May 2011, 07:47
Re: Kollsman periscopic sextant mountGary LaPook22 May 2011, 01:14
Re: Kollsman periscopic sextant mountGary LaPook21 May 2011, 21:24
Re: Kollsman periscopic sextant mountGary LaPook21 May 2011, 20:51
Re: Flip-Flop MethodGary LaPook19 May 2011, 17:49
Re: Flip-Flop MethodGary LaPook19 May 2011, 08:35
Re: Practical difficultiesGary LaPook16 May 2011, 22:04
Re: Practical difficultiesGary LaPook16 May 2011, 15:45
Re: Practical difficultiesGary LaPook16 May 2011, 06:38
Re: Practical difficultiesGary LaPook16 May 2011, 06:20
Re: Practical difficultiesGary LaPook15 May 2011, 17:26
Re: Practical difficultiesGary LaPook14 May 2011, 07:37
Re: Practical difficultiesGary LaPook14 May 2011, 00:43
Re: A celestial navigation mystery.Gary LaPook11 May 2011, 08:52
Re: sextant mirror adjustmentGary LaPook10 May 2011, 04:53
A celestial navigation mystery.Gary LaPook9 May 2011, 08:06
Re: Operation of A-7 bubble sextantGary LaPook9 May 2011, 05:48
Re: Operation of A-7 bubble sextantGary LaPook9 May 2011, 05:40
A-6 A-8 manualGary LaPook9 May 2011, 05:22
A-5 and A-7 sextant manualGary LaPook9 May 2011, 05:18
Re: Operation of A-7 bubble sextantGary LaPook8 May 2011, 17:44
Re: Operation of A-7 bubble sextantGary LaPook5 May 2011, 18:54
Test flight with A-7 bubble sextant to investigate accuracy on Noonan'snavigation on Earhart flightGary LaPook5 May 2011, 09:54
Re: HelloGary LaPook4 May 2011, 20:14
Operation of A-7 bubble sextantGary LaPook4 May 2011, 20:12
Re: HelloGary LaPook4 May 2011, 07:27
Re: HelloGary LaPook4 May 2011, 00:06
Re: HelloGary LaPook3 May 2011, 23:37
Re: HelloGary LaPook3 May 2011, 23:29
Re: HelloGary LaPook3 May 2011, 23:25
Re: HelloGary LaPook3 May 2011, 07:06
A-7 bubble sextantGary LaPook2 May 2011, 19:58
Polhemus celestial computerGary LaPook2 May 2011, 19:56
Re: HelloGary LaPook2 May 2011, 19:50
Re: HelloGary LaPook2 May 2011, 19:12
Re: HelloGary LaPook2 May 2011, 19:08
Re: HelloGary LaPook2 May 2011, 17:10
Re: Kollsman periscopic sextant mountGary LaPook2 May 2011, 16:59
Re: HelloGary LaPook1 May 2011, 10:33
Rust diagram for determining azimuthGary LaPook30 Apr 2011, 02:04
Re: Graphical method by Favet / de 'LisleGary LaPook29 Apr 2011, 18:12
Re: Graphical method by Favet / de 'LisleGary LaPook29 Apr 2011, 16:20
Re: Graphical method by Favet / de 'LisleGary LaPook29 Apr 2011, 16:11
Re: Earhart's Plane - Search For?Gary LaPook27 Apr 2011, 06:41
Re: Earhart's Plane - Search For?Gary LaPook26 Apr 2011, 05:50
Re: Earhart's Plane - Search For?Gary LaPook26 Apr 2011, 05:37
Re: Earhart's Plane - Search For?Gary LaPook26 Apr 2011, 02:00
Re: Earhart's Plane - Search For?Gary LaPook26 Apr 2011, 01:57
Re: Earhart's Plane - Search For?Gary LaPook26 Apr 2011, 01:39
Re: Earhart's Plane - Search For?Gary LaPook26 Apr 2011, 01:29
Re: Earhart's Plane - Search For?Gary LaPook26 Apr 2011, 01:00
Re: Earhart's Plane - Search For?Gary LaPook26 Apr 2011, 00:58
Re: Whole horizon mirror commentsGary LaPook25 Apr 2011, 21:49
Re: Earhart's Plane - Search For?Gary LaPook25 Apr 2011, 17:00
Re: Whole Horizon MirrorsGary LaPook24 Apr 2011, 19:44
Re: Graphical method by Favé / de l'IsleGary LaPook24 Apr 2011, 04:05
Re: Graphical method by Favé / de l'IsleGary LaPook20 Apr 2011, 23:45
Re: Graphical method by Favet / de 'LisleGary LaPook19 Apr 2011, 19:03
Re: Graphical method by Favet / de 'LisleGary LaPook19 Apr 2011, 18:58
Re: Graphical method by Favet / de 'LisleGary LaPook19 Apr 2011, 07:30
A copy of Wright's "Certain Errors" is now available for purchase.Gary LaPook14 Apr 2011, 22:22
Re: MHR1 reproductionGary LaPook10 Apr 2011, 05:54
Re: MHR1 reproductionGary LaPook10 Apr 2011, 05:39
Re: TV show features A-7 bubble octantGary LaPook10 Apr 2011, 05:21
Re: Sextants and Airport SecurityGary LaPook9 Apr 2011, 01:09
Re: Sextants and Airport SecurityGary LaPook8 Apr 2011, 18:59
Re: Sextants and Airport SecurityGary LaPook8 Apr 2011, 05:50
Re: Sextants and Airport SecurityGary LaPook8 Apr 2011, 00:40
Re: Sextants and Airport SecurityGary LaPook8 Apr 2011, 00:37
Re: Publication date of H.O 229Gary LaPook26 Mar 2011, 16:37
Publication date of H.O 229Gary LaPook26 Mar 2011, 07:19
Watches as chronometersGary LaPook25 Mar 2011, 08:44
Re: Evaluation of H.O. 218Gary LaPook25 Mar 2011, 06:33
Re: Evaluation of H.O. 218Gary LaPook25 Mar 2011, 05:25
Re: Evaluation of H.O. 218Gary LaPook25 Mar 2011, 04:58
Re: mirror horizonGary LaPook24 Mar 2011, 23:29
Re: H.O. 229/249: publication datesGary LaPook24 Mar 2011, 20:42
Re: H.O. 229/249: publication datesGary LaPook24 Mar 2011, 20:19
Re: H.O. 229/249: publication datesGary LaPook24 Mar 2011, 20:07
Re: H.O. 229/249: publication datesGary LaPook24 Mar 2011, 18:44
Re: Did the International Date Line cause the loss of AmeliaEarhart?Gary LaPook24 Mar 2011, 05:15
Re: mirror horizonGary LaPook24 Mar 2011, 02:11
Re: Evaluation of H.O. 218Gary LaPook23 Mar 2011, 09:57
Re: Did the International Date Line cause the loss of AmeliaEarhart?Gary LaPook22 Mar 2011, 10:19
Did the International Date Line cause the loss of Amelia Earhart?Gary LaPook22 Mar 2011, 04:40
Re: PeacockGary LaPook21 Mar 2011, 19:29
Re: PeacockGary LaPook21 Mar 2011, 09:47
Re: PeacockGary LaPook21 Mar 2011, 02:32
Re: NavList zone decriptionsGary LaPook20 Mar 2011, 18:29
Re: PeacockGary LaPook20 Mar 2011, 18:17
Re: Iodide:Gary LaPook20 Mar 2011, 08:45
Re: Iodide:Gary LaPook20 Mar 2011, 04:24
Re: Iodide:Gary LaPook20 Mar 2011, 01:47
Re: Iodide:Gary LaPook20 Mar 2011, 01:35
Re: Iodide:Gary LaPook20 Mar 2011, 01:15
Re: NavList zone decriptionsGary LaPook19 Mar 2011, 00:56
Re: NavList zone decriptionsGary LaPook18 Mar 2011, 18:56
Re: Comparison of sight reduction tablesGary LaPook17 Mar 2011, 00:44
Re: Evaluation of H.O. 218Gary LaPook16 Mar 2011, 20:16
Comparison of sight reduction tablesGary LaPook16 Mar 2011, 20:12
Re: Evaluation of H.O. 218Gary LaPook16 Mar 2011, 08:43
Re: Evaluation of H.O. 218Gary LaPook16 Mar 2011, 08:05
Re: Evaluation of H.O. 218Gary LaPook16 Mar 2011, 06:02
Re: Evaluation of H.O. 218Gary LaPook16 Mar 2011, 05:56
Re: Evaluation of H.O. 218Gary LaPook15 Mar 2011, 19:33
PeacockGary LaPook15 Mar 2011, 18:16
Re: Evaluation of H.O. 218Gary LaPook15 Mar 2011, 11:05
Re: Japan earthquake speeds earth's rotationGary LaPook15 Mar 2011, 10:58
Re: Teaching the discovery of the longitudeGary LaPook15 Mar 2011, 10:53
Re: Amelia Earhart ReportGary LaPook15 Mar 2011, 10:51
Re: Charting of Japanese Mandated Islands in reference toEarhartGary LaPook15 Mar 2011, 10:48
Re: Evaluation of H.O. 218Gary LaPook15 Mar 2011, 10:38
Re: Evaluation of H.O. 218Gary LaPook15 Mar 2011, 07:30
Re: Evaluation of H.O. 218Gary LaPook14 Mar 2011, 19:36
Re: Evaluation of H.O. 218Gary LaPook14 Mar 2011, 19:28
Re: Mary Blewitt vs M.J. Rantzen CORRECTION to correctionGary LaPook14 Mar 2011, 19:27
Re: Japan earthquake speeds earth's rotationGary LaPook14 Mar 2011, 18:17
Re: MHR1 reproductionGary LaPook14 Mar 2011, 06:42
Evaluation of H.O. 218Gary LaPook14 Mar 2011, 06:20
Re: Mary Blewitt vs M.J. Rantzen CORRECTION to correctionGary LaPook14 Mar 2011, 05:37
Re: Mary Blewitt vs M.J. Rantzen CORRECTIONGary LaPook14 Mar 2011, 00:54
Re: Mary Blewitt vs M.J. RantzenGary LaPook14 Mar 2011, 00:43
Re: Mary Blewitt vs M.J. RantzenGary LaPook13 Mar 2011, 23:09
Over reliance on GPSGary LaPook8 Mar 2011, 18:18
Re: Amelia Earhart ReportGary LaPook7 Mar 2011, 01:40
Re: Fw: Re: Sextant used on Graf ZeppelinGary LaPook5 Mar 2011, 09:19
Re: Charting of Japanese Mandated Islands in reference to EarhartGary LaPook5 Mar 2011, 08:23
Fw: Re: Sextant used on Graf ZeppelinGary LaPook5 Mar 2011, 08:13
Re: Amelia Earhart ReportGary LaPook5 Mar 2011, 08:10
Re: Amelia Earhart ReportGary LaPook4 Mar 2011, 20:59
Re: Sextant used on Graf ZeppelinGary LaPook4 Mar 2011, 20:49
Re: Sextant used on Graf ZeppelinGary LaPook4 Mar 2011, 20:40
Re: Sextant used on Graf ZeppelinGary LaPook4 Mar 2011, 19:44
Re: Amelia Earhart ReportGary LaPook4 Mar 2011, 06:49
Re: Amelia Earhart ReportGary LaPook3 Mar 2011, 23:51
Re: Amelia Earhart ReportGary LaPook3 Mar 2011, 22:58
Re: Amelia Earhart ReportGary LaPook3 Mar 2011, 22:27
Re: Amelia Earhart ReportGary LaPook3 Mar 2011, 22:24
Re: Amelia Earhart Report--pdf formatGary LaPook3 Mar 2011, 22:14
Re: Amelia Earhart ReportGary LaPook3 Mar 2011, 20:26
Re: Omega from Intrepid.Gary LaPook1 Mar 2011, 07:51
OMEGAGary LaPook28 Feb 2011, 21:40
Charting of Japanese Mandated Islands in reference to EarhartGary LaPook25 Feb 2011, 11:21
Re: 30 minute HO229 errorGary LaPook24 Feb 2011, 07:48
Re: A sextant calibratorGary LaPook23 Feb 2011, 09:59
Fw: Re: Online Nautical AlmanacGary LaPook13 Feb 2011, 22:58
Fw: Re: Online Nautical AlmanacGary LaPook13 Feb 2011, 22:57
Re: A sextant calibratorGary LaPook13 Feb 2011, 22:52
Re: Online Nautical AlmanacGary LaPook13 Feb 2011, 20:39
Re: Online Nautical AlmanacGary LaPook13 Feb 2011, 20:22
Re: Online Nautical AlmanacGary LaPook13 Feb 2011, 18:49
Re: Online Nautical AlmanacGary LaPook13 Feb 2011, 18:43
Navigation to Dakar, some additional thoughtsGary LaPook13 Feb 2011, 10:15
Re: Online Nautical AlmanacGary LaPook13 Feb 2011, 07:48
Fw: Re: [earhart] Navigation to Dakar, fourth attempt [1 Attachment]Gary LaPook13 Feb 2011, 01:31
Earhart and Noonan's navigation to DakarGary LaPook12 Feb 2011, 08:55
RatiometerGary LaPook9 Feb 2011, 02:51
Re: TV show features A-7 bubble octantGary LaPook8 Feb 2011, 20:52
Re: 2011 Nautical AlmanacGary LaPook8 Feb 2011, 18:32
Introducing sight reduction tables by use of the traditional noon sightGary LaPook8 Feb 2011, 09:37
Re: Ice on the oceanGary LaPook8 Feb 2011, 09:24
Re: Ice on the oceanGary LaPook8 Feb 2011, 09:20
Re: 2011 Nautical AlmanacGary LaPook6 Feb 2011, 20:01
Re: 2011 Nautical AlmanacGary LaPook5 Feb 2011, 23:06
Re: 2011 Nautical AlmanacGary LaPook4 Feb 2011, 18:52
Re: artificial horizonGary LaPook3 Feb 2011, 05:36
Re: 2011 Nautical AlmanacGary LaPook3 Feb 2011, 05:30
Re: Symmedian point plotters for sale---Fifty dollars eachGary LaPook1 Feb 2011, 05:45
Re: A new way to apply sextant correctionsGary LaPook1 Feb 2011, 05:36
Re: sun sightsGary LaPook31 Jan 2011, 20:20
Re: Computing altitude for a DR position using H.O. 229 or H.O. 249Gary LaPook31 Jan 2011, 11:02
Computing altitude for a DR position using H.O. 229 or H.O. 249Gary LaPook31 Jan 2011, 10:55
Re: sun sightsGary LaPook31 Jan 2011, 09:54
Re: sun sightsGary LaPook31 Jan 2011, 09:11
Searching for imagesGary LaPook30 Jan 2011, 21:02
Re: lat/long from meridian passageGary LaPook26 Jan 2011, 10:22
Re: lat/long from meridian passageGary LaPook26 Jan 2011, 06:47
Re: Making an artificial horizon, and leveling thereofGary LaPook26 Jan 2011, 06:19
Re: Making an artificial horizon, and leveling thereofGary LaPook26 Jan 2011, 01:24
Re: Making an artificial horizon, and leveling thereofGary LaPook26 Jan 2011, 01:21
Re: WHO replies to WHOM about WHAT ?Gary LaPook25 Jan 2011, 10:13
Re: Making an artificial horizon, and leveling thereofGary LaPook25 Jan 2011, 05:55
Re: artificial horizonGary LaPook25 Jan 2011, 04:07
A new way to apply sextant correctionsGary LaPook25 Jan 2011, 02:14
Re: Making an artificial horizon, and leveling thereofGary LaPook24 Jan 2011, 23:32
Re: Making an artificial horizon, and leveling thereofGary LaPook24 Jan 2011, 23:27
Re: Making an artificial horizon, and leveling thereofGary LaPook24 Jan 2011, 23:15
Re: Making an artificial horizon, and leveling thereofGary LaPook24 Jan 2011, 22:11
Re: lat/long from meridian passageGary LaPook24 Jan 2011, 22:09
Re: lat/long from meridian passageGary LaPook24 Jan 2011, 20:39
Re: lat/long from meridian passageGary LaPook24 Jan 2011, 20:36
Re: lat/long from meridian passageGary LaPook24 Jan 2011, 06:45
Re: lat/long from meridian passageGary LaPook24 Jan 2011, 05:02
Re: lat/long from meridian passageGary LaPook24 Jan 2011, 04:55
Re: lat/long from meridian passageGary LaPook24 Jan 2011, 01:12
Re: lat/long from meridian passageGary LaPook24 Jan 2011, 00:41
Re: Making an artificial horizon, and leveling thereofGary LaPook23 Jan 2011, 05:52
Re: Making an artificial horizon, and leveling thereofGary LaPook23 Jan 2011, 02:12
Re: Making an artificial horizon, and leveling thereofGary LaPook22 Jan 2011, 19:17
Re: Making an artificial horizon, and leveling thereofGary LaPook22 Jan 2011, 01:25
Re: Making an artificial horizon, and leveling thereofGary LaPook21 Jan 2011, 23:42
Re: Certaine errors in navigation by Edward WrightGary LaPook21 Jan 2011, 20:22
Re: GPS outage in southeast US?Gary LaPook21 Jan 2011, 19:03
Re: Making an artificial horizon, and leveling thereofGary LaPook21 Jan 2011, 18:52
Re: Symmedian point plotters for sale---Fifty dollars eachGary LaPook21 Jan 2011, 18:43
Re: Symmedian point plotters for sale---Fifty dollars eachGary LaPook21 Jan 2011, 12:05
Re: Symmedian point plotters for sale---Fifty dollars eachGary LaPook21 Jan 2011, 12:03
Certaine errors in navigation by Edward WrightGary LaPook21 Jan 2011, 09:36
Re: Symmedian point plotters for sale---Fifty dollars eachGary LaPook21 Jan 2011, 09:28
Re: Making an artificial horizonGary LaPook21 Jan 2011, 09:19
Re: Making an artificial horizonGary LaPook21 Jan 2011, 09:13
Re: Making an artificial horizonGary LaPook21 Jan 2011, 09:03
Re: Making an artificial horizonGary LaPook21 Jan 2011, 08:58
Re: Making an artificial horizonGary LaPook21 Jan 2011, 08:40
Re: Making an artificial horizonGary LaPook21 Jan 2011, 07:48
Re: Making an artificial horizonGary LaPook20 Jan 2011, 05:56
Re: Making an artificial horizonGary LaPook20 Jan 2011, 05:44
Making an artificial horizonGary LaPook20 Jan 2011, 02:15
Symmedian point plotters for sale---Fifty dollars eachGary LaPook20 Jan 2011, 01:09
Re: azimuth of polar starGary LaPook19 Jan 2011, 18:23
Re: NA "v" correction & mercury observationsGary LaPook19 Jan 2011, 10:52
Re: azimuth of polar starGary LaPook18 Jan 2011, 23:25
Re: NA "v" correction & mercury observationsGary LaPook17 Jan 2011, 19:56
Re: NA "v" correction & mercury observationsGary LaPook16 Jan 2011, 23:54
Re: Ho 249Gary LaPook16 Jan 2011, 21:14
Re: help with sun sightsGary LaPook16 Jan 2011, 09:22
Re: help with sun sightsGary LaPook16 Jan 2011, 07:49
Re: help with sun sightsGary LaPook16 Jan 2011, 07:37
Re: help with sun sightsGary LaPook16 Jan 2011, 00:43
Re: help with sun sightsGary LaPook15 Jan 2011, 07:44
Re: How to Use a Plastic SextantGary LaPook15 Jan 2011, 07:38
Re: help with sun sightsGary LaPook15 Jan 2011, 03:22
Re: Immutable firmament?Gary LaPook15 Jan 2011, 01:42
Re: help with sun sightsGary LaPook14 Jan 2011, 23:48
Re: The Nautical SextantGary LaPook14 Jan 2011, 06:15
Re: Rejecting outliersGary LaPook10 Jan 2011, 01:33
Re: Rejecting outliersGary LaPook9 Jan 2011, 21:09
Re: Sight Reduction via Daily Pages in NA v.NA Concise Sight Reduction TablesGary LaPook9 Jan 2011, 09:17
Re: Sight Reduction via Daily Pages in NA v.NA Concise SightReduction TablesGary LaPook9 Jan 2011, 06:19
Re: Rejecting outliersGary LaPook9 Jan 2011, 02:05
Re: Rejecting outliersGary LaPook9 Jan 2011, 01:48
Re: Rejecting outliersGary LaPook8 Jan 2011, 18:54
Re: Rejecting outliersGary LaPook8 Jan 2011, 11:26
Re: Rejecting outliersGary LaPook8 Jan 2011, 10:58
Re: Ex-Meridian ExerciseGary LaPook7 Jan 2011, 21:28
Re: Advice concerning sextantsGary LaPook7 Jan 2011, 20:56
Re: Biruni and the radius of the Earth by dipGary LaPook7 Jan 2011, 17:51
Re: Advice concerning sextantsGary LaPook6 Jan 2011, 06:14
Re: Advice concerning sextantsGary LaPook6 Jan 2011, 04:43
Re: Advice concerning sextantsGary LaPook6 Jan 2011, 04:35
Re: Index Error and Micrometer DrumsGary LaPook4 Jan 2011, 02:46
Re: Rejecting outliersGary LaPook3 Jan 2011, 06:20
Re: Rejecting outliersGary LaPook3 Jan 2011, 05:23
Re: Rejecting outliers: was: Kurtosis.Gary LaPook2 Jan 2011, 02:21
Re: Rejecting outliers: was: Kurtosis.Gary LaPook1 Jan 2011, 19:15
Re: Rejecting outliers: was: Kurtosis.Gary LaPook1 Jan 2011, 18:24
Re: Rejecting outliers: was: Kurtosis.Gary LaPook1 Jan 2011, 10:31
Re: Rejecting outliers: was: Kurtosis.Gary LaPook1 Jan 2011, 10:13
Re: Advice concerning sextantsGary LaPook1 Jan 2011, 02:17
Re: Kurtosis, Gaussian distribution and leptokurtoticGary LaPook31 Dec 2010, 03:44
Re: Two reckoningsGary LaPook31 Dec 2010, 03:41
Re: Review of "Overboard" (history of Slocum)Gary LaPook31 Dec 2010, 01:28
Re: Advice concerning sextantsGary LaPook31 Dec 2010, 01:23
Re: Advice concerning sextantsGary LaPook30 Dec 2010, 21:05
Re: Digital watches for use as a chronometerGary LaPook30 Dec 2010, 09:18
Re: Advice concerning sextantsGary LaPook30 Dec 2010, 09:00
Re: St Hilaire not Iterative was: Finding The SymmedianGary LaPook30 Dec 2010, 00:56
Re: St Hilaire not Iterative was: Finding The SymmedianGary LaPook30 Dec 2010, 00:48
Re: errors in plotting and a possible/partial fix thereof, asmenti...Gary LaPook30 Dec 2010, 00:16
Re: errors in plotting and a possible/partial fix thereof, asmenti...Gary LaPook29 Dec 2010, 22:10
Re: errors in plotting and a possible/partial fix thereof, asmenti...Gary LaPook29 Dec 2010, 22:10
Re: Cocked hats and symmedian pointsGary LaPook29 Dec 2010, 21:09
Re: Cocked hats and symmedian pointsGary LaPook29 Dec 2010, 21:00
Re: errors in plotting and a possible/partial fix thereof, as menti...Gary LaPook29 Dec 2010, 20:36
Re: errors in plotting and a possible/partial fix thereof, as menti...Gary LaPook29 Dec 2010, 19:40
Re: errors in plotting and a possible/partial fix thereof, asmenti...Gary LaPook29 Dec 2010, 19:14
Re: Cocked hats and symmedian pointsGary LaPook29 Dec 2010, 04:30
Re: Cocked hats and symmedian pointsGary LaPook29 Dec 2010, 04:22
Cocked hats and symmedian pointsGary LaPook29 Dec 2010, 04:05
Re: Finding The SymmedianGary LaPook29 Dec 2010, 00:28
Re: Finding The SymmedianGary LaPook28 Dec 2010, 21:59
Re: Finding The SymmedianGary LaPook28 Dec 2010, 21:31
Re: Finding The SymmedianGary LaPook28 Dec 2010, 19:14
Re: Finding The SymmedianGary LaPook28 Dec 2010, 04:22
Re: Finding The SymmedianGary LaPook24 Dec 2010, 10:13
Re: Finding The SymmedianGary LaPook24 Dec 2010, 10:12
Re: Finding The SymmedianGary LaPook24 Dec 2010, 08:31
Pressure line of positionGary LaPook24 Dec 2010, 06:58
Re: St Hilaire not IterativeGary LaPook24 Dec 2010, 06:50
Re: St Hilaire not IterativeGary LaPook24 Dec 2010, 06:47
Re: St Hilaire not IterativeGary LaPook24 Dec 2010, 04:58
Re: Finding The SymmedianGary LaPook24 Dec 2010, 04:45
Re: St Hilaire not IterativeGary LaPook24 Dec 2010, 04:43
Re: Finding The SymmedianGary LaPook23 Dec 2010, 20:45
Biography of Philip Van Horn WeemsGary LaPook20 Dec 2010, 09:28
Re: A simple three-body fix puzzleGary LaPook19 Dec 2010, 18:51
Re: Finding The SymmedianGary LaPook19 Dec 2010, 08:51
Re: A simple three-body fix puzzleGary LaPook19 Dec 2010, 08:46
Re: A slope exampleGary LaPook19 Dec 2010, 08:38
The old cocked hat- a synthesisGary LaPook19 Dec 2010, 03:12
Re: Finding The SymmedianGary LaPook19 Dec 2010, 02:09
Re: Finding The SymmedianGary LaPook19 Dec 2010, 02:04
Re: Finding The SymmedianGary LaPook19 Dec 2010, 01:44
Re: Finding The SymmedianGary LaPook19 Dec 2010, 01:14
Re: Finding The SymmedianGary LaPook19 Dec 2010, 01:12
Re: Finding The SymmedianGary LaPook17 Dec 2010, 22:39
Re: Finding The SymmedianGary LaPook17 Dec 2010, 21:36
Re: Finding The SymmedianGary LaPook17 Dec 2010, 21:23
Re: Was Amelia Earhart eaten by crabs?Gary LaPook17 Dec 2010, 06:54
Re: Calculated slope questionGary LaPook15 Dec 2010, 08:25
Calculated slope questionGary LaPook15 Dec 2010, 07:38
Re: That darned old cocked hatGary LaPook13 Dec 2010, 21:57
Re: calculated slope questionsGary LaPook13 Dec 2010, 17:59
Re: That darned old cocked hatGary LaPook13 Dec 2010, 06:54
Re: A simple three-body fix puzzleGary LaPook11 Dec 2010, 10:26
Re: That darned old cocked hatGary LaPook10 Dec 2010, 22:22
Re: A simple three-body fix puzzleGary LaPook10 Dec 2010, 21:50
Re: That darned old cocked hatGary LaPook10 Dec 2010, 05:43
Re: That darned old cocked hatGary LaPook10 Dec 2010, 05:20
Re: That darned old cocked hatGary LaPook9 Dec 2010, 23:33
Re: That darned old cocked hatGary LaPook9 Dec 2010, 23:27
Re: That darned old cocked hatGary LaPook9 Dec 2010, 23:21
Re: That darned old cocked hatGary LaPook9 Dec 2010, 22:58
Re: That darned old cocked hatGary LaPook9 Dec 2010, 21:25
Re: That darned old cocked hatGary LaPook9 Dec 2010, 21:25
Re: That darned old cocked hatGary LaPook9 Dec 2010, 20:39
Re: That darned old cocked hatGary LaPook9 Dec 2010, 20:31
Re: A simple three-body fix puzzleGary LaPook8 Dec 2010, 09:15
Re: Sextant telescopeGary LaPook8 Dec 2010, 00:58
Re: A simple three-body fix puzzleGary LaPook7 Dec 2010, 20:44
Re: Immutable firmament?Gary LaPook7 Dec 2010, 10:25
Re: Sextant telescopeGary LaPook6 Dec 2010, 20:57
'Programming error' caused Russian rocket failure - Yahoo! NewsGary LaPook6 Dec 2010, 18:31
Re: Immutable firmament?Gary LaPook6 Dec 2010, 10:15
Re: Immutable firmament?Gary LaPook6 Dec 2010, 08:49
Re: Immutable firmament?Gary LaPook6 Dec 2010, 08:02
Re: Immutable firmament?Gary LaPook6 Dec 2010, 07:54
Re: Sextant telescopeGary LaPook6 Dec 2010, 07:04
Rogues galleryGary LaPook4 Dec 2010, 08:23
Re: Immutable firmament?Gary LaPook4 Dec 2010, 07:45
Re: A slope exampleGary LaPook4 Dec 2010, 01:36
Re: Sextant telescopeGary LaPook3 Dec 2010, 17:51
Immutable firmament?Gary LaPook3 Dec 2010, 10:08
Re: Sextant telescopeGary LaPook3 Dec 2010, 09:45
Re: Sextant telescopeGary LaPook3 Dec 2010, 06:17
Re: A slope exampleGary LaPook1 Dec 2010, 10:20
Re: A slope exampleGary LaPook1 Dec 2010, 10:08
Re: A slope exampleGary LaPook1 Dec 2010, 10:00
Re: A slope exampleGary LaPook1 Dec 2010, 07:23
Re: A slope exampleGary LaPook1 Dec 2010, 06:25
Re: Sextant telescopeGary LaPook1 Dec 2010, 02:45
Re: Sextant telescopeGary LaPook1 Dec 2010, 02:43
Re: A slope exampleGary LaPook30 Nov 2010, 23:15
Re: The Nautical Sextant, by by Bill Morris.Gary LaPook30 Nov 2010, 22:35
Re: A slope exampleGary LaPook30 Nov 2010, 22:17
Sextant telescopeGary LaPook30 Nov 2010, 07:16
Accuracy of GPSGary LaPook29 Nov 2010, 04:36
Re: Accuracy of sextant observations at seaGary LaPook28 Nov 2010, 07:24
Re: Accuracy of sextant observations at seaGary LaPook28 Nov 2010, 07:06
Re: Accuracy of sextant observations at seaGary LaPook28 Nov 2010, 03:25
Re: Accuracy of sextant observations at seaGary LaPook27 Nov 2010, 20:58
Manual slope plottingGary LaPook27 Nov 2010, 08:04
Re: Wobbly Prime MeridianGary LaPook24 Nov 2010, 06:59
Re: Wobbly Prime MeridianGary LaPook24 Nov 2010, 05:36
Re: Wobbly Prime MeridianGary LaPook24 Nov 2010, 02:50
Re: Wobbly Prime MeridianGary LaPook23 Nov 2010, 21:18
Re: Wobbly Prime MeridianGary LaPook23 Nov 2010, 09:23
Re: Wobbly Prime MeridianGary LaPook23 Nov 2010, 08:00
Re: Wobbly Prime MeridianGary LaPook23 Nov 2010, 02:17
Re: Accuracy of sextant observations at seaGary LaPook22 Nov 2010, 08:42
Re: Accuracy of sextant observations at seaGary LaPook21 Nov 2010, 23:30
Re: Accuracy of sextant observations at seaGary LaPook20 Nov 2010, 23:52
Re: Accuracy of sextant observations at seaGary LaPook20 Nov 2010, 11:00
Re: Accuracy of sextant observations at seaGary LaPook19 Nov 2010, 22:40
Re: The Rude Star Finder and teaching starsGary LaPook18 Nov 2010, 07:05
Determining the center of the cocked hatGary LaPook17 Nov 2010, 08:13
Re: The Rude Star Finder and teaching starsGary LaPook17 Nov 2010, 07:46
Re: The Usps Aries CalculatorGary LaPook13 Nov 2010, 18:06
Re: Star finder, 2102-D, further modificationGary LaPook9 Nov 2010, 22:23
Re: Star finder, 2102-D, further modificationGary LaPook9 Nov 2010, 21:09
Re: Star finder, 2102-D, further modificationGary LaPook9 Nov 2010, 19:16
Re: Accuracy of sextant observations at seaGary LaPook9 Nov 2010, 08:29
Re: The Rude Star Finder and teaching starsGary LaPook9 Nov 2010, 07:59
Re: The Usps Aries CalculatorGary LaPook9 Nov 2010, 03:46
Star finder, 2102-D, further modificationGary LaPook9 Nov 2010, 03:41
Re: Web on-line CelNav sights reductionGary LaPook8 Nov 2010, 17:38
Re: The Rude Star Finder and teaching starsGary LaPook7 Nov 2010, 07:43
Re: Free online CelNav courseGary LaPook6 Nov 2010, 22:56
Re: hiding starsGary LaPook4 Nov 2010, 00:48
Clickable links- test 4Gary LaPook29 Oct 2010, 20:28
Clickable links-test 3Gary LaPook29 Oct 2010, 20:25
Clickable links- test 2Gary LaPook29 Oct 2010, 20:19
Clickable links---testGary LaPook29 Oct 2010, 20:15
Re: Afm 51-40Gary LaPook28 Oct 2010, 05:50
Re: Afm 51-40Gary LaPook28 Oct 2010, 05:25
Re: Afm 51-40Gary LaPook27 Oct 2010, 23:20
Re: Afm 51-40Gary LaPook27 Oct 2010, 20:29
Re: Afm 51-40Gary LaPook27 Oct 2010, 20:05
Re: Afm 51-40Gary LaPook27 Oct 2010, 09:32
Re: The Nonsensical Running FixGary LaPook27 Oct 2010, 09:01
Kollsman periscopic sextant mountGary LaPook27 Oct 2010, 08:41
Re: The Nonsensical Running FixGary LaPook26 Oct 2010, 16:59
Re: The Nonsensical Running FixGary LaPook26 Oct 2010, 10:13
Re: The Nonsensical Running FixGary LaPook26 Oct 2010, 09:45
Re: Old question - need summaryGary LaPook26 Oct 2010, 09:08
Re: Old question - need summaryGary LaPook26 Oct 2010, 08:57
Re: The Nonsensical Running FixGary LaPook25 Oct 2010, 18:27
Re: (ADMIN) Linked files vs Attached files, and a scamGary LaPook25 Oct 2010, 17:17
Re: The Nonsensical Running FixGary LaPook25 Oct 2010, 08:03
Re: (ADMIN) Linked files vs Attached files, and a scamGary LaPook25 Oct 2010, 06:27
Re: (ADMIN) Linked files vs Attached files, and a scamGary LaPook25 Oct 2010, 06:06
Re: Admiral GAGO CoutinhoGary LaPook22 Oct 2010, 10:28
Re: B-52 navigators in VietnamGary LaPook20 Oct 2010, 22:31
Re: More on 2102-D & Radar Plotting SheetGary LaPook20 Oct 2010, 04:45
Re: Admiral GAGO CoutinhoGary LaPook19 Oct 2010, 20:20
Nautical Sextant bookGary LaPook16 Oct 2010, 00:30
The Nonsensical Running FixGary LaPook16 Oct 2010, 00:28
MA-2 sextant for sale on ebayGary LaPook14 Oct 2010, 06:57
Original cost of A-10A sextantGary LaPook14 Oct 2010, 06:55
Re: Sextant averagerGary LaPook12 Oct 2010, 20:03
Re: Sun Altitude/Azimuth by 2102-DGary LaPook11 Oct 2010, 22:58
Re: Sun Altitude/Azimuth by 2102-DGary LaPook11 Oct 2010, 22:03
Re: Sun Altitude/Azimuth by 2102-DGary LaPook11 Oct 2010, 19:20
Sextant averagerGary LaPook11 Oct 2010, 00:43
Re: Benefits of StigmatizingGary LaPook9 Oct 2010, 23:50
Re: Benefits of StigmatizingGary LaPook9 Oct 2010, 19:48
Re: Benefits of StigmatizingGary LaPook9 Oct 2010, 01:45
Re: Benefits of StigmatizingGary LaPook9 Oct 2010, 00:24
Re: Benefits of StigmatizingGary LaPook8 Oct 2010, 19:28
Re: Self contained long term celnav with Bygrave slide ruleGary LaPook5 Oct 2010, 09:38
Re: New compact backup CELNAV system RENAMED Accuracy ofBygrave Slide RuleGary LaPook4 Oct 2010, 20:16
Re: New compact backup CELNAV system RENAMED Accuracy of Bygrave SlideRuleGary LaPook3 Oct 2010, 08:11
Self contained long term celnav with Bygrave slide ruleGary LaPook2 Oct 2010, 08:17
Re: Graphs of Lunar Distances.Gary LaPook29 Sep 2010, 05:21
Re: MA1 aircraft sextant averagerGary LaPook26 Sep 2010, 16:52
Re: Modifacation to 2102-DGary LaPook25 Sep 2010, 02:08
Re: Accuracy of sextant observations at seaGary LaPook23 Sep 2010, 20:24
Re: Degree symbol inputGary LaPook23 Sep 2010, 20:21
Re: Accuracy of sextant observations at seaGary LaPook23 Sep 2010, 20:19
Re: Degree symbol inputGary LaPook23 Sep 2010, 20:05
Accuracy of sextant observations at seaGary LaPook23 Sep 2010, 09:57
Re: A fluke of 0.0 intercept with Altair.Gary LaPook22 Sep 2010, 22:24
Re: Benefits of StigmatizingGary LaPook22 Sep 2010, 19:02
Re: Degree symbol inputGary LaPook22 Sep 2010, 18:59
Re: Degree symbol inputGary LaPook22 Sep 2010, 18:52
Re: Degree symbol inputGary LaPook22 Sep 2010, 18:41
Re: Degree symbol inputGary LaPook22 Sep 2010, 18:14
Re: Benefits of StigmatizingGary LaPook22 Sep 2010, 18:08
Re: A fluke of 0.0 intercept with Altair.Gary LaPook22 Sep 2010, 18:04
Degree symbol inputGary LaPook22 Sep 2010, 11:06
Re: Benefits of StigmatizingGary LaPook22 Sep 2010, 10:23
Re: Did the Titanic helmsman turn the wrong way?Gary LaPook22 Sep 2010, 06:19
Re: sextant practice and time keepersGary LaPook22 Sep 2010, 05:54
Re: A fluke of 0.0 intercept with Altair.Gary LaPook22 Sep 2010, 05:43
Re: sextant practice and time keepersGary LaPook21 Sep 2010, 07:42
Re: webpages upset by skype. was: skype was: Lewis and ClarkGary LaPook20 Sep 2010, 22:28
Re: Lewis and Clark. was: sextant practice and time keepersGary LaPook19 Sep 2010, 04:16
Re: Radium illuminationGary LaPook17 Sep 2010, 05:53
Re: Did a precessing gyro lead to the loss of Earhart?Gary LaPook16 Sep 2010, 18:40
Re: Aviation Bubble SextantGary LaPook15 Sep 2010, 07:57
Re: Digital watches for use as a chronometerGary LaPook15 Sep 2010, 00:35
Re: Digital watches for use as a chronometerGary LaPook15 Sep 2010, 00:27
Digital watches for use as a chronometerGary LaPook14 Sep 2010, 22:06
Re: Atherton's HeliostatGary LaPook14 Sep 2010, 05:26
Re: Egregious navigation exampleGary LaPook14 Sep 2010, 04:31
Re: Did a precessing gyro lead to the loss of Earhart?Gary LaPook14 Sep 2010, 01:58
Re: Did a precessing gyro lead to the loss of Earhart?Gary LaPook13 Sep 2010, 21:20
Flight navigation manualsGary LaPook13 Sep 2010, 17:45
Re: Did a precessing gyro lead to the loss of Earhart?Gary LaPook13 Sep 2010, 02:32
Re: Did a precessing gyro lead to the loss of Earhart?Gary LaPook12 Sep 2010, 16:28
Re: Egregious navigation exampleGary LaPook12 Sep 2010, 05:14
Did a precessing gyro lead to the loss of Earhart?Gary LaPook12 Sep 2010, 03:08
Re: Looking for references on "aiming off"Gary LaPook11 Sep 2010, 19:26
Re: Looking for references on "aiming off"Gary LaPook11 Sep 2010, 06:30
Re: Looking for references on "aiming off"Gary LaPook10 Sep 2010, 20:42
Re: Looking for references on "aiming off"Gary LaPook10 Sep 2010, 17:07
Re: Looking for references on "aiming off"Gary LaPook10 Sep 2010, 17:05
Re: Aviation Bubble SextantGary LaPook10 Sep 2010, 16:59
Re: Aviation Bubble SextantGary LaPook10 Sep 2010, 16:35
Egregious navigation exampleGary LaPook9 Sep 2010, 20:29
Re: Radium illuminationGary LaPook9 Sep 2010, 05:18
Re: Radium illuminationGary LaPook8 Sep 2010, 02:35
Re: Radium illuminationGary LaPook6 Sep 2010, 18:04
Re: Radium illuminationGary LaPook6 Sep 2010, 00:20
Re: Radium illuminationGary LaPook6 Sep 2010, 00:13
Re: Radium illuminationGary LaPook6 Sep 2010, 00:11
Radium illuminationGary LaPook5 Sep 2010, 22:45
Re: Using an artificial horizonGary LaPook4 Sep 2010, 06:11
Re: Using an artificial horizonGary LaPook3 Sep 2010, 00:49
Re: Using an artificial horizonGary LaPook2 Sep 2010, 16:19
Re: Jesse Ramsden's Circular Dividing Engine: A commentaryGary LaPook1 Sep 2010, 06:40
Re: Aviation Bubble SextantGary LaPook29 Aug 2010, 10:37
Re: Aviation Bubble SextantGary LaPook29 Aug 2010, 10:03
Re: Ah, give someone a calculator.......Gary LaPook25 Aug 2010, 20:26
Re: Ah, give someone a calculator.......Gary LaPook25 Aug 2010, 17:40
Re: Ah, give someone a calculator.......Gary LaPook21 Aug 2010, 09:44
[Fwd: Re: Ah, give someone a calculator.......]Gary LaPook17 Aug 2010, 02:14
Re: Ah, give someone a calculator.......Gary LaPook17 Aug 2010, 01:57
Re: Ah, give someone a calculator.......Gary LaPook16 Aug 2010, 16:22
Re: Ah, give someone a calculator.......Gary LaPook15 Aug 2010, 17:50
Re: Ah, give someone a calculator.......Gary LaPook15 Aug 2010, 17:24
Re: Ah, give someone a calculator.......Gary LaPook15 Aug 2010, 14:27
Re: Basic celestial naviagtion using a scientific calculatorGary LaPook15 Aug 2010, 01:17
Re: Basic celestial naviagtion using a scientific calculatorGary LaPook15 Aug 2010, 00:29
Re: Ah, give someone a calculator.......Gary LaPook14 Aug 2010, 21:20
Re: Ah, give someone a calculator.......Gary LaPook14 Aug 2010, 21:11
Re: Basic celestial naviagtion using a scientific calculatorGary LaPook14 Aug 2010, 20:34
Ah, give someone a calculator.......Gary LaPook14 Aug 2010, 13:52
Re: Basic celestial naviagtion using a scientific calculatorGary LaPook12 Aug 2010, 22:45
Re: Greenwich getting a challengeGary LaPook11 Aug 2010, 16:02
Re: Solar storms. was: New inovation in astro navigation?Gary LaPook5 Aug 2010, 19:04
Re: NIST website time accuracyGary LaPook5 Aug 2010, 19:01
Re: NIST website time accuracyGary LaPook5 Aug 2010, 08:40
Re: NIST website time accuracyGary LaPook4 Aug 2010, 22:41
Re: NIST website time accuracyGary LaPook4 Aug 2010, 22:02
Re: New inovation in astro navigation?Gary LaPook3 Aug 2010, 22:34
Re: Summer ReadingGary LaPook3 Aug 2010, 21:21
Re: Summer ReadingGary LaPook3 Aug 2010, 20:28
Re: New inovation in astro navigation?Gary LaPook3 Aug 2010, 16:45
A-7 sextant accuracy in flightGary LaPook2 Aug 2010, 01:27
Re: New inovation in astro navigation?Gary LaPook1 Aug 2010, 00:10
Re: NavList Summer reading?Gary LaPook28 Jul 2010, 02:45
Re: HO 249 Vol 1, epoch 2010, TypoGary LaPook27 Jul 2010, 17:43
Re: HO 249 Vol 1, epoch 2010, TypoGary LaPook27 Jul 2010, 17:12
Re: Bygrave revised rules for converting azimuth angle to ZnGary LaPook13 Jul 2010, 04:21
Re: Bygrave revised rules for converting azimuth angleto ZnGary LaPook12 Jul 2010, 10:49
Re: Bygrave revised rules for converting azimuth angleto ZnGary LaPook12 Jul 2010, 10:47
Bygrave revised rules for converting azimuth angle to ZnGary LaPook12 Jul 2010, 03:55
Re: MHR1 reproductionGary LaPook6 Jul 2010, 20:01
Re: Compass Error CorectionGary LaPook3 Jul 2010, 01:23
Re: Materials from Navigation Weekend TalkGary LaPook21 Jun 2010, 22:59
Re: Materials from Navigation Weekend TalkGary LaPook8 Jun 2010, 07:32
Re: Bligh's noon by chronometerGary LaPook4 Jun 2010, 01:50
Re: Bligh's noon by chronometerGary LaPook1 Jun 2010, 04:34
Re: Two weeks to Mystic "Navigation Weekend"Gary LaPook25 May 2010, 08:53
Was Earhart a spy, part threeGary LaPook24 May 2010, 21:49
Was Earhart a Spy, Second spy theoryGary LaPook24 May 2010, 21:29
Was Earhart a spy?Gary LaPook24 May 2010, 21:05
Re: Periscopic sextant with mountGary LaPook22 May 2010, 17:16
Mk IX on EbayGary LaPook22 May 2010, 05:06
Periscopic sextant with mountGary LaPook22 May 2010, 05:05
Re: Attachments againGary LaPook13 May 2010, 21:51
Re: History of whaling: tonight on tv (USA)Gary LaPook12 May 2010, 04:07
Re: History of whaling: tonight on tv (USA)Gary LaPook11 May 2010, 17:43
Re: Museum piecesGary LaPook10 May 2010, 07:05
Re: Errors in USNO celestial dataGary LaPook5 May 2010, 00:00
Mystic symposiumGary LaPook1 May 2010, 22:47
Re: Browser issues, not errors in USNO celestial dataGary LaPook1 May 2010, 22:43
Re: Errors in USNO celestial dataGary LaPook1 May 2010, 20:35
Re: Errors in USNO celestial dataGary LaPook1 May 2010, 18:26
Errors in USNO celestial dataGary LaPook1 May 2010, 09:52
Re: slide ruleGary LaPook26 Apr 2010, 21:03
Re: slide ruleGary LaPook26 Apr 2010, 21:01
Re: 4 basic rules for accurate Low Level Airborne VisualNavigationGary LaPook26 Apr 2010, 06:20
Re: 4 basic rules for accurate Low Level Airborne VisualNavigationGary LaPook23 Apr 2010, 22:01
Re: Inverse Grid Magrader ChartGary LaPook22 Apr 2010, 19:24
Amelia Earhart's navigation to DakarGary LaPook19 Apr 2010, 18:00
Earhart's flight to DakarGary LaPook19 Apr 2010, 10:05
Re: MA-1 bubble sextantGary LaPook18 Apr 2010, 07:22
Degradation of professionalism in NavyGary LaPook10 Apr 2010, 19:16
Re: ebbco sextantGary LaPook8 Apr 2010, 18:26
Re: Circular "Navigational Computer"Gary LaPook24 Mar 2010, 07:57
Re: Circular "Navigational Computer"Gary LaPook23 Mar 2010, 20:31
Re: Website with flight navigation resourcesGary LaPook22 Mar 2010, 04:05
Re: Website with flight navigation resourcesGary LaPook22 Mar 2010, 03:19
Re: Website with flight navigation resourcesGary LaPook21 Mar 2010, 23:36
Re: Website with flight navigation resourcesGary LaPook21 Mar 2010, 20:16
Flight navigation websiteGary LaPook21 Mar 2010, 11:26
Website with flight navigation resourcesGary LaPook21 Mar 2010, 11:23
Re: TWO at the Lake with sextantsGary LaPook17 Mar 2010, 19:57
Re: TWO at the Lake with sextantsGary LaPook17 Mar 2010, 19:49
Re: H.O. 208 Editions ComparedGary LaPook4 Mar 2010, 05:57
Re: Magnetic VariationGary LaPook28 Feb 2010, 03:24
Re: testGary LaPook28 Feb 2010, 00:51
Re: Irradiation and Manual Navigation. Haines andAllen. 1968/9Gary LaPook28 Feb 2010, 00:51
TestGary LaPook28 Feb 2010, 00:39
Re: Navigational instruments at the Naval Museum in LisbonGary LaPook25 Feb 2010, 23:51
Re: Advice concerning sextantsGary LaPook24 Feb 2010, 03:49
Re: Advancing LOPs for precision fixesGary LaPook23 Feb 2010, 10:53
Re: Ships and boats and barksGary LaPook20 Feb 2010, 05:23
Re: Advancing LOPs for precision fixesGary LaPook19 Feb 2010, 07:37
Scales used on BygraveGary LaPook19 Feb 2010, 00:35
Re: Advancing LOPs for precision fixesGary LaPook18 Feb 2010, 10:41
Re: Advancing LOPs for precision fixesGary LaPook16 Feb 2010, 20:56
Re: Longitude by meridian transit/ fishline sextantGary LaPook16 Feb 2010, 18:06
Advancing LOPs for precision fixesGary LaPook16 Feb 2010, 09:28
Re: System Gago CoutinhoGary LaPook16 Feb 2010, 07:54
Re: System Gago CoutinhoGary LaPook16 Feb 2010, 00:56
Navigational instruments at the Naval Museum in LisbonGary LaPook15 Feb 2010, 09:06
Re: System Gago CoutinhoGary LaPook15 Feb 2010, 00:51
Re: Sextant used on Graf ZeppelinGary LaPook14 Feb 2010, 22:59
System Gago CoutinhoGary LaPook14 Feb 2010, 20:20
Re: Sextant used on Graf ZeppelinGary LaPook14 Feb 2010, 00:24
Re: Method used to compute navigational tables.Gary LaPook10 Feb 2010, 00:37
Re: thinking manGary LaPook9 Feb 2010, 22:24
Computing azimuth with the Bygrave in special cases.Gary LaPook9 Feb 2010, 12:52
Searching attachment filesGary LaPook7 Feb 2010, 21:02
Computing great circle and rhumb lline coursesGary LaPook6 Feb 2010, 12:37
Re: Finding Howland IslandGary LaPook6 Feb 2010, 09:53
Re: German navigational notationGary LaPook6 Feb 2010, 08:00
Re: Longitude by Sunrise exampleGary LaPook5 Feb 2010, 23:24
Re: Ageton FormGary LaPook5 Feb 2010, 19:51
Re: Longitude by SunriseGary LaPook5 Feb 2010, 06:32
Re: Longitude by SunriseGary LaPook5 Feb 2010, 03:21
Re: Longitude by Sunrise exampleGary LaPook5 Feb 2010, 00:51
Re: Longitude by Sunrise exampleGary LaPook5 Feb 2010, 00:47
Re: Wartime (WW2) navigationGary LaPook1 Feb 2010, 19:50
Re: Wartime (WW2) navigationGary LaPook1 Feb 2010, 10:39
Re: Wartime (WW2) navigationGary LaPook31 Jan 2010, 08:06
Re: Wartime (WW2) navigationGary LaPook31 Jan 2010, 06:46
Re: Wartime (WW2) navigationGary LaPook31 Jan 2010, 06:34
Re: Method used to compute navigational tables.Gary LaPook31 Jan 2010, 00:40
Method used to compute navigational tables.Gary LaPook30 Jan 2010, 22:48
Re: German navigational notationGary LaPook30 Jan 2010, 22:19
Re: Cylindrical Slide Rule tube pollGary LaPook30 Jan 2010, 07:54
Re: Cylindrical Slide Rule / tube lengthsGary LaPook30 Jan 2010, 07:48
Re: German navigational notationGary LaPook30 Jan 2010, 02:35
Re: d correctionGary LaPook30 Jan 2010, 00:04
Re: German navigational notationGary LaPook29 Jan 2010, 11:28
Re: German navigational notationGary LaPook29 Jan 2010, 06:42
German navigational notationGary LaPook28 Jan 2010, 23:04
Re: Cylindrical Slide Rule / tube lengthsGary LaPook28 Jan 2010, 09:52
Re: IntroductionGary LaPook26 Jan 2010, 23:49
Re: Raft book questionGary LaPook26 Jan 2010, 10:43
Re: Cylindrical Slide Rule tube pollGary LaPook26 Jan 2010, 05:32
Pictures of HR-1 and HR-2Gary LaPook25 Jan 2010, 00:57
Re: Symposium at GreenwichGary LaPook24 Jan 2010, 21:35
Re: Symposium at GreenwichGary LaPook24 Jan 2010, 21:17
Re: Cylindrical Slide Rule tube pollGary LaPook24 Jan 2010, 20:35
Re: AFM 64-5/ Raft book questionGary LaPook24 Jan 2010, 07:16
Re: Ball Recording Sextant Mark 1 Mod. 0Gary LaPook23 Jan 2010, 21:57
Re: Symposium at GreenwichGary LaPook23 Jan 2010, 09:03
Re: HR-1 working re-creationGary LaPook23 Jan 2010, 06:51
Re: Cylindrical Slide Rule tube pollGary LaPook23 Jan 2010, 05:56
Re: Cylindrical Slide Rule tube pollGary LaPook23 Jan 2010, 05:32
Re: Another cylindrical bygraveGary LaPook23 Jan 2010, 05:09
Re: HR-1 working re-creationGary LaPook23 Jan 2010, 03:27
Re: HR-1 working re-creationGary LaPook23 Jan 2010, 02:07
Re: HR-1 working re-creationGary LaPook23 Jan 2010, 02:03
Re: Cylindrical Slide Rule tube pollGary LaPook22 Jan 2010, 21:07
Re: Another cylindrical bygraveGary LaPook22 Jan 2010, 07:59
Re: HR-1 working re-creationGary LaPook22 Jan 2010, 07:26
Re: Cylindrical Slide Rule tube pollGary LaPook22 Jan 2010, 07:09
Re: HR-1 working re-creationGary LaPook22 Jan 2010, 05:37
Re: Cylindrical Slide Rule tube pollGary LaPook21 Jan 2010, 12:01
Re: Cylindrical Slide Rule tube pollGary LaPook21 Jan 2010, 11:52
HR-1 working re-creationGary LaPook18 Jan 2010, 11:59
Re: Poor Line of Position Computer/popularity of slide rulesight reductionGary LaPook16 Jan 2010, 09:54
Re: Poor Line of Position Computer/popularity of slide rulesight reductionGary LaPook16 Jan 2010, 09:47
Re: Poor Line of Position Computer/popularity of sliderule sight reductionGary LaPook16 Jan 2010, 09:41
Re: Poor Line of Position Computer/popularity of sliderule sight reductionGary LaPook16 Jan 2010, 07:29
Re: Poor Line of Position Computer/popularity of sliderule sight reductionGary LaPook15 Jan 2010, 19:26
Re: Poor Line of Position Computer/popularity of slide rulesight reductionGary LaPook15 Jan 2010, 18:18
Re: CN aboard a Cessna 172Gary LaPook15 Jan 2010, 02:38
Re: Poor Line of Position Computer/popularity of slide rulesight reductionGary LaPook14 Jan 2010, 18:52
Re: Cessna CN SummaryGary LaPook13 Jan 2010, 22:56
Re: Cessna CN SummaryGary LaPook13 Jan 2010, 21:49
Re: Cessna CN SummaryGary LaPook13 Jan 2010, 20:55
Re: why is it thatGary LaPook13 Jan 2010, 05:01
Re: CN aboard a Cessna 172Gary LaPook12 Jan 2010, 21:52
Re: CN aboard a Cessna 172Gary LaPook12 Jan 2010, 05:22
Re: Kollsman sextantGary LaPook4 Jan 2010, 23:54
Re: Kollsman sextantGary LaPook4 Jan 2010, 21:35
Re: [Fwd: Re: things to do in LA]Gary LaPook3 Jan 2010, 16:14
Re: [Fwd: Re: things to do in LA]Gary LaPook3 Jan 2010, 06:42
Re: [Fwd: Re: things to do in LA]Gary LaPook3 Jan 2010, 02:25
[Fwd: Re: things to do in LA]Gary LaPook2 Jan 2010, 08:10
[Fwd: Re: things to do in LA]Gary LaPook2 Jan 2010, 08:10
[Fwd: Re: things to do in LA]Gary LaPook2 Jan 2010, 08:10
Re: Calibrating bubble sextantsGary LaPook27 Dec 2009, 22:20
Calibrating bubble sextantsGary LaPook27 Dec 2009, 22:07
Re: Re.Sextant Shots in FlightGary LaPook26 Dec 2009, 06:20
Re: Sextant shots in flight on January 9th and/or January 10th, 2010Gary LaPook25 Dec 2009, 01:35
Sextant shots in flight on January 9th and/or January 10th, 2010Gary LaPook24 Dec 2009, 21:29
Re: Celesital Navigation Through CloudsGary LaPook24 Dec 2009, 01:00
Re: Celesital Navigation Through CloudsGary LaPook23 Dec 2009, 17:38
Re: Celesital Navigation Through CloudsGary LaPook23 Dec 2009, 04:40
Re: Semi-diameter in the Nautical AlmanacGary LaPook23 Dec 2009, 02:06
Re: Semi-diameter in the Nautical AlmanacGary LaPook22 Dec 2009, 21:11
Re: Semi-diameter in the Nautical AlmanacGary LaPook22 Dec 2009, 13:17
Re: Semi-diameter in the Nautical AlmanacGary LaPook22 Dec 2009, 12:36
Re: Celesital Navigation Through CloudsGary LaPook21 Dec 2009, 07:24
Re: Celesital Navigation Through CloudsGary LaPook21 Dec 2009, 07:23
Re: Celesital Navigation Through CloudsGary LaPook21 Dec 2009, 02:56
Re: Celesital Navigation Through CloudsGary LaPook20 Dec 2009, 22:37
Re: Celesital Navigation Through CloudsGary LaPook20 Dec 2009, 14:00
Re: Pre-computed Altitudes and AzimuthsGary LaPook20 Dec 2009, 12:24
Re: Pre-computed Altitudes and AzimuthsGary LaPook20 Dec 2009, 12:11
Re: Celesital Navigation Through CloudsGary LaPook18 Dec 2009, 20:43
Re: Celesital Navigation Through CloudsGary LaPook18 Dec 2009, 19:32
Re: USN going paperless and celnavlessGary LaPook17 Dec 2009, 17:47
Re: Why Not To Teach Running FixesGary LaPook16 Dec 2009, 11:42
Re: Matthew FlindersGary LaPook16 Dec 2009, 05:29
Re: Semi-diameter in the Nautical AlmanacGary LaPook15 Dec 2009, 19:33
Re: Semi-diameter in the Nautical AlmanacGary LaPook15 Dec 2009, 19:29
Semi-diameter in the Nautical AlmanacGary LaPook15 Dec 2009, 08:50
Re: Why Not To Teach Running FixesGary LaPook15 Dec 2009, 06:50
Re: Teaching a Running FixGary LaPook12 Dec 2009, 21:49
Re: Out of Date AlmanacGary LaPook10 Dec 2009, 08:36
Re: LORAN-C to be shut down.Gary LaPook9 Dec 2009, 10:23
Re: Out of Date AlmanacGary LaPook9 Dec 2009, 06:11
Re: Out of Date AlmanacGary LaPook8 Dec 2009, 22:44
Re: Out of Date AlmanacGary LaPook8 Dec 2009, 19:30
Re: Out of Date AlmanacGary LaPook8 Dec 2009, 11:36
Re: Out of Date AlmanacGary LaPook8 Dec 2009, 06:51
Re: Out of Date AlmanacGary LaPook8 Dec 2009, 02:42
Re: Ageton on an Index CardGary LaPook8 Dec 2009, 01:26
Re: Ageton on an Index CardGary LaPook8 Dec 2009, 01:10
Re: Finding latitude by length of day-condensed filesGary LaPook7 Dec 2009, 06:49
Re: LORAN-C to be shut down.Gary LaPook7 Dec 2009, 06:21
KamalGary LaPook7 Dec 2009, 06:08
Re: Finding latitude by length of day-condensed filesGary LaPook7 Dec 2009, 03:01
Re: Finding latitude by length of day-condensed filesGary LaPook7 Dec 2009, 02:30
Re: Finding latitude by length of day-condensed filesGary LaPook7 Dec 2009, 02:24
Re: Finding latitude by length of day-condensed filesGary LaPook7 Dec 2009, 01:56
Re: LORAN-C to be shut down.Gary LaPook7 Dec 2009, 01:54
Re: Finding latitude by length of day-condensed filesGary LaPook6 Dec 2009, 23:16
Re: LORAN-C to be shut down.Gary LaPook6 Dec 2009, 23:03
Re: Ipod Touch / IPhone AppsGary LaPook6 Dec 2009, 22:25
[Fwd: Re: LORAN-C to be shut down.]Gary LaPook6 Dec 2009, 22:01
Re: LORAN-C to be shut down.Gary LaPook6 Dec 2009, 21:40
Re: Finding latitude by length of day-condensed filesGary LaPook6 Dec 2009, 19:59
Re: LORAN-C to be shut down.Gary LaPook6 Dec 2009, 10:48
Re: LORAN-C to be shut down.Gary LaPook6 Dec 2009, 10:45
Re: LORAN-C to be shut down.Gary LaPook6 Dec 2009, 10:36
Finding latitude by length of dayGary LaPook6 Dec 2009, 09:59
Re: Ageton on an Index CardGary LaPook6 Dec 2009, 05:33
Re: Radio direction-finders. was: Re: LORAN-C to be shut down.Gary LaPook5 Dec 2009, 23:58
Re: LORAN-C to be shut down.Gary LaPook5 Dec 2009, 08:03
Re: Pub.229 GC-Calculation-basic informationGary LaPook2 Dec 2009, 19:31
Re: Finding Howland IslandGary LaPook2 Dec 2009, 09:27
Re: Finding Howland IslandGary LaPook2 Dec 2009, 09:04
Finding Howland IslandGary LaPook2 Dec 2009, 08:27
Re: Pub.229 GC-Calculation-basic informationGary LaPook2 Dec 2009, 05:26
Re: Pub.229 GC-Calculation-basic informationGary LaPook2 Dec 2009, 05:25
Re: Amelia Earhart navigation- basic information & PICTURESGary LaPook1 Dec 2009, 10:17
Re: Pub.229 GC-Calculation-basic informationGary LaPook1 Dec 2009, 09:59
Re: Amelia Earhart navigation- basic information & PICTURESGary LaPook1 Dec 2009, 09:44
Re: Pub.229 GC-Calculation distance and course.Gary LaPook30 Nov 2009, 20:53
Re: Amelia Earhart navigation- basic information.Gary LaPook29 Nov 2009, 12:04
Re: Amelia Earhart navigation- basic information.Gary LaPook29 Nov 2009, 11:52
Re: Amelia Earhart's aerial navigationGary LaPook29 Nov 2009, 11:49
Re: Amelia Earhart navigation- basic information.Gary LaPook29 Nov 2009, 11:28
Re: Amelia Earhart's aerial navigationGary LaPook29 Nov 2009, 05:33
Amelia Earhart navigation- basic information.Gary LaPook28 Nov 2009, 08:28
Transatlantic on the Royal Clipper and celnavGary LaPook27 Nov 2009, 21:44
Re: Amelia Earhart's aerial navigationGary LaPook27 Nov 2009, 13:19
Re: Amelia Earhart's aerial navigation and Coast Guard did?Gary LaPook27 Nov 2009, 12:38
Re: Amelia Earhart's aerial navigationGary LaPook27 Nov 2009, 10:52
Re: Kollsman averagersGary LaPook27 Nov 2009, 09:39
Re: Flight 19 route: wrong courseGary LaPook27 Nov 2009, 05:31
Re: Flight 19 route: wrong courseGary LaPook26 Nov 2009, 02:56
Re: Kollsman averagersGary LaPook25 Nov 2009, 21:14
Re: Kollsman averagersGary LaPook25 Nov 2009, 21:07
Re: Kollsman averagersGary LaPook25 Nov 2009, 19:24
Kollsman averagersGary LaPook25 Nov 2009, 05:52
Re: Periscopic Sextant w/ MountGary LaPook25 Nov 2009, 05:51
Re: Amelia Earhart's aerial navigationGary LaPook21 Nov 2009, 04:58
Re: Amelia Earhart's aerial navigationGary LaPook19 Nov 2009, 21:17
Re: Amelia Earhart's aerial navigationGary LaPook19 Nov 2009, 19:10
Re: Amelia Earhart's aerial navigationGary LaPook19 Nov 2009, 17:37
Re: Amelia Earhart's aerial navigationGary LaPook19 Nov 2009, 05:59
Re: Amelia Earhart's aerial navigationGary LaPook18 Nov 2009, 23:44
Re: Amelia movieGary LaPook17 Nov 2009, 17:50
Re: Amelia Earhart's aerial navigationGary LaPook17 Nov 2009, 12:27
Re: Amelia Earhart's aerial navigationGary LaPook17 Nov 2009, 12:07
Re: Amelia movieGary LaPook17 Nov 2009, 09:41
Re: Changing Zone Descriptions at SeaGary LaPook17 Nov 2009, 01:54
Re: Free GyroscopeGary LaPook17 Nov 2009, 01:38
Re: Amelia Earhart's aerial navigationGary LaPook16 Nov 2009, 10:40
Re: Amelia Earhart's aerial navigationGary LaPook16 Nov 2009, 09:18
Re: Amelia Earhart's aerial navigationGary LaPook16 Nov 2009, 08:16
Re: AP terminology, WAS: 2-Body Fix -- take threeGary LaPook14 Nov 2009, 01:06
Re: Interpolation to latitudeGary LaPook13 Nov 2009, 23:47
Re: Interpolation to latitudeGary LaPook13 Nov 2009, 16:18
Re: 'Intentional Error' Method of Navigating toDestination.Gary LaPook13 Nov 2009, 11:26
Re: Interpolation to latitudeGary LaPook13 Nov 2009, 11:16
Re: Interpolation to latitudeGary LaPook13 Nov 2009, 10:56
Re: 'Intentional Error' Method of Navigating toDestination.Gary LaPook13 Nov 2009, 10:45
Re: Choice of timepieceGary LaPook12 Nov 2009, 22:43
Re: Interpolation to latitudeGary LaPook12 Nov 2009, 22:21
Re: Wisconsin Maritime MuseumGary LaPook12 Nov 2009, 15:18
Re: Wisconsin Maritime MuseumGary LaPook11 Nov 2009, 10:00
Re: 'Intentional Error' Method of Navigating toDestination.Gary LaPook11 Nov 2009, 09:44
Re: Wisconsin Maritime MuseumGary LaPook11 Nov 2009, 05:10
Re: Wisconsin Maritime MuseumGary LaPook10 Nov 2009, 13:30
Re: Wisconsin Maritime MuseumGary LaPook10 Nov 2009, 05:53
Re: Wisconsin Maritime MuseumGary LaPook10 Nov 2009, 05:31
Re: Interpolation to latitudeGary LaPook10 Nov 2009, 05:18
Re: Amelia Earhart's aerial navigationGary LaPook8 Nov 2009, 19:26
Re: Amelia Earhart's aerial navigationGary LaPook8 Nov 2009, 19:22
Re: Amelia Earhart's aerial navigationGary LaPook8 Nov 2009, 19:21
Re: Amelia Earhart's aerial navigationGary LaPook8 Nov 2009, 12:23
Re: At the centre of timeGary LaPook24 Oct 2009, 15:33
Re: At the centre of timeGary LaPook24 Oct 2009, 15:25
Re: Amelia Earhart's aerial navigationGary LaPook24 Oct 2009, 15:07
Re: Polar navigationGary LaPook19 Oct 2009, 00:53
Re: Radar Plotting Sheet for PolarisGary LaPook19 Oct 2009, 00:51
Re: Polar navigationGary LaPook18 Oct 2009, 23:30
Re: Additional error found in H.O. 249Gary LaPook8 Oct 2009, 08:17
Re: Additional error found in H.O. 249Gary LaPook8 Oct 2009, 02:04
Re: Additional error found in H.O. 249Gary LaPook7 Oct 2009, 19:58
Re: Flight navigation websiteGary LaPook7 Oct 2009, 09:14
Additional error found in H.O. 249Gary LaPook7 Oct 2009, 08:32
Re: Astrolabes. was facing MeccaGary LaPook4 Oct 2009, 23:01
Flight navigation websiteGary LaPook2 Oct 2009, 21:05
Re: Allowing for current. was: Re:Noon sun fix exampleGary LaPook2 Oct 2009, 20:42
Re: Allowing for current. was: Re:Noon sun fix exampleGary LaPook2 Oct 2009, 20:32
Re: Time of meridian passage accuracyGary LaPook2 Oct 2009, 20:09
Re: Bygrave and MHR-1 locking mechanism constructionGary LaPook2 Oct 2009, 10:25
Re: Time of meridian passage accuracyGary LaPook2 Oct 2009, 09:00
Re: Time of meridian passage accuracyGary LaPook2 Oct 2009, 01:15
Re: Bygrave and MHR-1 locking mechanism constructionGary LaPook1 Oct 2009, 22:43
Re: Azimuthal equidistant gridGary LaPook1 Oct 2009, 17:43
Re: Time of meridian passage accuracyGary LaPook1 Oct 2009, 06:45
Re: Time of meridian passage accuracyGary LaPook1 Oct 2009, 04:19
Bygrave and MHR-1 locking mechanism constructionGary LaPook30 Sep 2009, 01:55
Re: Kollsman sextantGary LaPook29 Sep 2009, 11:31
Re: Kollsman sextantGary LaPook29 Sep 2009, 11:16
Re: Time of meridian passage accuracyGary LaPook28 Sep 2009, 17:18
Re: Time of meridian passage accuracyGary LaPook28 Sep 2009, 10:08
Re: How Many Chronometers?Gary LaPook26 Sep 2009, 09:43
Re: MHR1 dimensions and detailsGary LaPook24 Sep 2009, 20:22
Re: How Many Chronometers?Gary LaPook24 Sep 2009, 07:12
Re: Flight 19 routeGary LaPook23 Sep 2009, 09:05
Use of a stopwatch to time celestial sightsGary LaPook23 Sep 2009, 06:11
Re: Flight 19 routeGary LaPook22 Sep 2009, 13:11
Flight 19 RouteGary LaPook22 Sep 2009, 13:05
Re: Flight 19 routeGary LaPook22 Sep 2009, 13:03
Use of a stopwatch to time celestial sightsGary LaPook22 Sep 2009, 10:48
Re: Longitude by altitudes. was Re: How Many Chronometers?Gary LaPook22 Sep 2009, 10:41
Re: How Many Chronometers?Gary LaPook22 Sep 2009, 09:39
Re: How Many Chronometers?Gary LaPook21 Sep 2009, 19:48
Re: How Many Chronometers?Gary LaPook20 Sep 2009, 20:17
Re: How Many Chronometers?Gary LaPook20 Sep 2009, 19:55
Re: How Many Chronometers?Gary LaPook20 Sep 2009, 19:21
Re: How Many Chronometers?Gary LaPook20 Sep 2009, 19:11
Re: How Many Chronometers?Gary LaPook20 Sep 2009, 08:40
Re: How Many Chronometers?Gary LaPook16 Sep 2009, 17:37
Re: How Many Chronometers?Gary LaPook16 Sep 2009, 00:34
Re: How Many Chronometers?Gary LaPook15 Sep 2009, 18:13
Re: How Many Chronometers?Gary LaPook15 Sep 2009, 17:24
Re: How Many Chronometers?Gary LaPook15 Sep 2009, 17:06
Re: How Many Chronometers?Gary LaPook15 Sep 2009, 09:22
Re: Index Card for Trig/Log TableGary LaPook11 Sep 2009, 07:20
Re: Etymology of "loom"?Gary LaPook10 Sep 2009, 17:22
Re: Coriolis and gyrosGary LaPook8 Sep 2009, 10:50
Bygrave and AquinoGary LaPook6 Sep 2009, 15:21
Re: Searching the archive.Gary LaPook31 Aug 2009, 08:27
Re: Hughes Bubble sextant Mk IXAGary LaPook28 Aug 2009, 00:18
Re: Hughes Bubble sextant Mk IXAGary LaPook28 Aug 2009, 00:10
Re: Tracking down a referenceGary LaPook26 Aug 2009, 21:54
Re: Coriolis and gyros (second attempt)(typoscorrected)Gary LaPook25 Aug 2009, 23:42
Re: Coriolis and gyros (second attempt)(typoscorrected)Gary LaPook25 Aug 2009, 08:59
Re: Coriolis and gyros (second attempt)(typoscorrected)Gary LaPook25 Aug 2009, 08:51
Re: Coriolis and gyros (second attempt)(typoscorrected)Gary LaPook24 Aug 2009, 17:29
Searching the archive.Gary LaPook23 Aug 2009, 14:21
Re: Coriolis and gyros (second attempt)(typoscorrected)Gary LaPook23 Aug 2009, 14:16
Re: Coriolis and gyros (second attempt)(typoscorrected)Gary LaPook23 Aug 2009, 14:10
Re: Coriolis and gyrosGary LaPook23 Aug 2009, 13:39
Re: missing messageGary LaPook21 Aug 2009, 07:23
Missing messageGary LaPook20 Aug 2009, 18:47
Missing messageGary LaPook20 Aug 2009, 18:43
[Fwd: Re: Coriolis and gyros]Gary LaPook20 Aug 2009, 18:33
Re: Coriolis and gyrosGary LaPook20 Aug 2009, 17:40
Re: The development of bubble sextantsGary LaPook20 Aug 2009, 09:33
Re: The development of bubble sextantsGary LaPook18 Aug 2009, 18:00
Re: The development of bubble sextantsGary LaPook18 Aug 2009, 13:12
Re: The development of bubble sextantsGary LaPook18 Aug 2009, 10:06
Re: Manufacture of BygravesGary LaPook17 Aug 2009, 21:43
Re: The development of bubble sextantsGary LaPook17 Aug 2009, 12:14
Re: The development of bubble sextantsGary LaPook16 Aug 2009, 22:59
Re: The development of bubble sextantsGary LaPook16 Aug 2009, 01:12
Re: The development of bubble sextantsGary LaPook15 Aug 2009, 23:51
Re: The development of bubble sextantsGary LaPook15 Aug 2009, 23:47
Re: The development of bubble sextantsGary LaPook15 Aug 2009, 10:59
Re: The development of bubble sextantsGary LaPook15 Aug 2009, 00:27
Re: The development of bubble sextantsGary LaPook15 Aug 2009, 00:07
Re: The development of bubble sextantsGary LaPook14 Aug 2009, 09:28
Re: slide rule sight reduction accuracyGary LaPook14 Aug 2009, 00:47
Re: Modifications to 2102-DGary LaPook13 Aug 2009, 21:24
Re: Fw: Grounding of cruiser PORT ROYALGary LaPook13 Aug 2009, 17:40
Re: Modifications to 2102-DGary LaPook13 Aug 2009, 17:15
Re: Modifications to 2102-DGary LaPook13 Aug 2009, 17:12
The development of bubble sextantsGary LaPook12 Aug 2009, 23:08
Re: Modifacation to 2102-DGary LaPook12 Aug 2009, 22:33
Re: typical standard deviation?Gary LaPook12 Aug 2009, 12:40
MARK 5 bubble sextant manualGary LaPook9 Aug 2009, 18:22
MK IX bubble sextant manualGary LaPook9 Aug 2009, 18:20
CHO-T (SNO-T) sextant manualGary LaPook9 Aug 2009, 18:17
Balldrop sextant manualGary LaPook9 Aug 2009, 18:14
A-12 bubble sextant manualGary LaPook9 Aug 2009, 16:19
A-6 bubble sextant manualGary LaPook9 Aug 2009, 16:15
A-5 and A-7 bubble sextant manualGary LaPook9 Aug 2009, 16:13
Manuals for Kollsman MA-1 sextantGary LaPook9 Aug 2009, 15:57
Re: kollsman periscopic sextantGary LaPook9 Aug 2009, 15:49
Re: kollsman periscopic sextantGary LaPook9 Aug 2009, 15:21
Re: Manufacture of BygravesGary LaPook9 Aug 2009, 07:50
Re: Manufacture of BygravesGary LaPook9 Aug 2009, 07:39
Re: Modifacation to 2102-DGary LaPook7 Aug 2009, 22:20
Manufacture of BygravesGary LaPook6 Aug 2009, 03:19
Re: Bygrave and ChichesterGary LaPook5 Aug 2009, 22:39
Re: Magnetic Variation (Declination) CalculatorGary LaPook5 Aug 2009, 09:25
Polaris LOPGary LaPook4 Aug 2009, 08:34
Re: Bygrave and ChichesterGary LaPook3 Aug 2009, 17:14
Re: Bygrave and ChichesterGary LaPook3 Aug 2009, 08:43
Re: Bygrave and ChichesterGary LaPook3 Aug 2009, 08:22
Re: Bygrave and ChichesterGary LaPook2 Aug 2009, 23:44
Re: Bygrave and ChichesterGary LaPook2 Aug 2009, 23:27
Re: Bygrave and ChichesterGary LaPook2 Aug 2009, 23:03
Re: Bygrave and ChichesterGary LaPook2 Aug 2009, 18:18
Re: Bygrave and ChichesterGary LaPook2 Aug 2009, 16:03
Re: Bygrave and ChichesterGary LaPook2 Aug 2009, 15:57
Re: Bygrave and ChichesterGary LaPook2 Aug 2009, 15:35
Bygrave and ChichesterGary LaPook1 Aug 2009, 01:59
Re: Airbus celestial portholeGary LaPook1 Aug 2009, 01:49
Re: Periscopic Sextant. Henry Hughes and SonGary LaPook1 Aug 2009, 00:34
Re: The BygraveGary LaPook1 Aug 2009, 00:24
Re: The BygraveGary LaPook1 Aug 2009, 00:23
Re: Periscopic Sextant. Henry Hughes and SonGary LaPook31 Jul 2009, 08:44
Re: The BygraveGary LaPook26 Jul 2009, 17:03
Re: The BygraveGary LaPook23 Jul 2009, 00:27
Re: Collimation testGary LaPook21 Jul 2009, 16:29
Re: Collimation testGary LaPook21 Jul 2009, 12:17
Re: "Marine Navigation" by Weems. was: Re: "A history of marine navigation" by Per CollinderGary LaPook19 Jul 2009, 18:15
Re: BygravesGary LaPook16 Jul 2009, 23:45
Re: Manufacture new Bygraves?Gary LaPook10 Jul 2009, 22:43
Re: Manufacture new Bygraves?Gary LaPook10 Jul 2009, 21:06
Re: Manufacture new Bygraves?Gary LaPook10 Jul 2009, 03:50
Re: Manufacture new Bygraves?Gary LaPook10 Jul 2009, 03:24
Re: Manufacture new Bygraves?Gary LaPook10 Jul 2009, 03:06
Re: Manufacture new Bygraves?Gary LaPook9 Jul 2009, 18:26
Re: Manufacture new Bygraves?Gary LaPook9 Jul 2009, 11:05
Re: Manufacture new Bygraves?Gary LaPook9 Jul 2009, 03:19
Re: "Attainment of Precision" article (1964)Gary LaPook8 Jul 2009, 11:37
Re: Accuracy of BygraveGary LaPook8 Jul 2009, 05:47
Shipwreck of Admiral ShovellGary LaPook8 Jul 2009, 05:45
The shipwreck of Admiral ShovellGary LaPook8 Jul 2009, 05:24
Re: Bygrave formula accuracy on 10 inch slide ruleGary LaPook8 Jul 2009, 05:06
Re: The BygraveGary LaPook8 Jul 2009, 01:55
Re: The BygraveGary LaPook7 Jul 2009, 05:28
Re: Starting new threadsGary LaPook7 Jul 2009, 04:36
Re: Accuracy of BygraveGary LaPook6 Jul 2009, 19:28
Re: Accuracy of BygraveGary LaPook6 Jul 2009, 18:01
Flight navigation reference worksGary LaPook6 Jul 2009, 17:56
Re: Accuracy of BygraveGary LaPook6 Jul 2009, 07:05
Re: Accuracy of BygraveGary LaPook6 Jul 2009, 06:24
Accuracy of BygraveGary LaPook6 Jul 2009, 05:49
Re: Manufacture new Bygraves?Gary LaPook6 Jul 2009, 05:34
Re: Manufacture new Bygraves?Gary LaPook5 Jul 2009, 14:28
Re: The BygraveGary LaPook5 Jul 2009, 14:00
Re: Starting new threadsGary LaPook5 Jul 2009, 02:03
Re: Manufacture new Bygraves?Gary LaPook4 Jul 2009, 20:59
Re: Manufacture new Bygraves?Gary LaPook3 Jul 2009, 20:32
Re: Manufacture new Bygraves?Gary LaPook3 Jul 2009, 20:29
Re: Manufacture new Bygraves?Gary LaPook3 Jul 2009, 20:02
Re: Magnifiers for K&E slide rulesGary LaPook1 Jul 2009, 15:47
Starting new threadsGary LaPook30 Jun 2009, 18:56
Re: Star-star distances for arc errorGary LaPook29 Jun 2009, 17:41
Re: Star-star distances for arc errorGary LaPook29 Jun 2009, 17:18
Re: Formulas to Compute LHAGary LaPook29 Jun 2009, 09:53
Re: Formulas to Compute LHAGary LaPook28 Jun 2009, 08:31
Re: Formulas to Compute LHAGary LaPook28 Jun 2009, 05:56
Re: Star-star distances for arc errorGary LaPook27 Jun 2009, 11:21
Re: Star-star distances for arc errorGary LaPook26 Jun 2009, 08:43
Re: Formulas to Compute LHAGary LaPook24 Jun 2009, 12:07
Re: Formulas to Compute LHAGary LaPook23 Jun 2009, 19:32
Re: A-10 Sextant ManualGary LaPook20 Jun 2009, 04:30
Re: slide rule sight reduction accuracyGary LaPook19 Jun 2009, 23:25
Re: slide rule sight reduction accuracyGary LaPook19 Jun 2009, 20:32
Re: slide rule sight reduction accuracyGary LaPook19 Jun 2009, 11:05
Re: slide rule sight reduction accuracyGary LaPook19 Jun 2009, 10:50
Re: A-10 Sextant ManualGary LaPook19 Jun 2009, 10:35
Re: slide rule sight reduction accuracyGary LaPook18 Jun 2009, 10:07
Re: slide rule sight reduction accuracyGary LaPook18 Jun 2009, 10:04
Re: Manufacture new Bygraves?Gary LaPook17 Jun 2009, 18:33
Re: A-10 Sextant ManualGary LaPook17 Jun 2009, 18:24
Re: A-10 Sextant ManualGary LaPook17 Jun 2009, 12:16
Re: A-10 Sextant ManualGary LaPook17 Jun 2009, 12:09
Re: A-10 Sextant ManualGary LaPook17 Jun 2009, 11:58
Re: Manufacture new Bygraves?Gary LaPook17 Jun 2009, 00:15
Re: Manufacture new Bygraves?Gary LaPook17 Jun 2009, 00:13
Re: slide rule sight reduction accuracyGary LaPook17 Jun 2009, 00:09
Re: slide rule sight reduction accuracyGary LaPook16 Jun 2009, 23:32
Re: A-10 Sextant ManualGary LaPook14 Jun 2009, 20:56
Re: A-10 Sextant ManualGary LaPook12 Jun 2009, 16:42
Re: A-10 Sextant ManualGary LaPook12 Jun 2009, 08:14
Re: A-10 Sextant ManualGary LaPook11 Jun 2009, 16:12
Re: A-10 Sextant ManualGary LaPook11 Jun 2009, 15:21
Re: A-10 Sextant ManualGary LaPook11 Jun 2009, 15:13
Re: Tratado de Navegacion - Mendoza y Rios. 1787Gary LaPook11 Jun 2009, 13:36
Re: A-10 Sextant ManualGary LaPook11 Jun 2009, 02:01
Re: A-10 Sextant ManualGary LaPook10 Jun 2009, 16:29
Re: A-10 Sextant ManualGary LaPook10 Jun 2009, 04:58
A-10 Sextant ManualGary LaPook8 Jun 2009, 21:50
Re: Bubble sextants on e-bayGary LaPook8 Jun 2009, 21:32
Re: Bubble sextants on e-bayGary LaPook7 Jun 2009, 19:12
Re: Bubble sextants on e-bayGary LaPook7 Jun 2009, 18:10
Re: Bubble sextants on e-bayGary LaPook6 Jun 2009, 22:29
Re: New to the listGary LaPook4 Jun 2009, 00:21
Re: The Bygrave Slide RuleGary LaPook2 Jun 2009, 11:36
Re: Slide Rule AzimuthGary LaPook2 Jun 2009, 08:06
Re: twilight computerGary LaPook31 May 2009, 09:18
Re: Slide Rule AzimuthGary LaPook31 May 2009, 07:29
Re: Slide Rule AzimuthGary LaPook30 May 2009, 12:12
Re: recommendation for slide rule ?Gary LaPook30 May 2009, 10:49
Re: The Bygrave Slide ruleGary LaPook30 May 2009, 01:24
Re: recommendation for slide rule ?Gary LaPook29 May 2009, 10:50
Re: Arg 1 Ww 11 U Boat Navigation Device Ebay Itemnumber: 370193239339Gary LaPook29 May 2009, 06:36
Re: Dennert & Pape MHR-1 HR-2 Cylindrical Slide LineRulerGary LaPook29 May 2009, 06:35
Re: The Bygrave Slide RuleGary LaPook28 May 2009, 19:35
Re: The Bygrave Slide RuleGary LaPook28 May 2009, 11:23
Re: 10 inch Slide Rule vs. Pocket CalculatorGary LaPook28 May 2009, 09:54
Re: 10 inch Slide Rule vs. Pocket CalculatorGary LaPook28 May 2009, 09:48
Re: Dennert & Pape MHR-1 HR-2 Cylindrical Slide Line RulerGary LaPook25 May 2009, 21:12
Re: recommendation for slide rule ?Gary LaPook25 May 2009, 20:57
Re: recommendation for slide rule ?Gary LaPook24 May 2009, 21:48
Re: Arg 1 Ww 11 U Boat Navigation Device Ebay Item Number: 370193239339Gary LaPook23 May 2009, 17:01
Re: Arg 1 Ww 11 U Boat Navigationdevice Ebay Item Number: 370193239339Gary LaPook23 May 2009, 10:45
Re: recommendation for slide rule ? BygraveGary LaPook22 May 2009, 07:35
Re: recommendation for slide rule ? BygraveGary LaPook22 May 2009, 05:20
Re: recommendation for slide rule ?Gary LaPook22 May 2009, 00:23
Re: recommendation for slide rule ?Gary LaPook21 May 2009, 23:47
Re: recommendation for slide rule ?Gary LaPook21 May 2009, 22:26
Re: recommendation for slide rule ?Gary LaPook21 May 2009, 22:20
Re: recommendation for slide rule ?Gary LaPook21 May 2009, 22:20
Re: recommendation for slide rule ?Gary LaPook21 May 2009, 03:51
Re: recommendation for slide rule ?Gary LaPook21 May 2009, 03:28
Re: recommendation for slide rule ?Gary LaPook21 May 2009, 03:17
Re: recommendation for slide rule ?Gary LaPook21 May 2009, 03:10
Re: recommendation for slide rule ?Gary LaPook20 May 2009, 23:05
Re: recommendation for slide rule ?Gary LaPook20 May 2009, 22:59
Re: recommendation for slide rule ?Gary LaPook18 May 2009, 01:21
Re: An 5851Gary LaPook14 May 2009, 22:42
An 5851Gary LaPook14 May 2009, 22:28
Re: Learn the stars, by phoneGary LaPook14 May 2009, 21:06
Re: Lat/Lon by "Noon Sun" & The Noon Fix PROVE ITGary LaPook12 May 2009, 21:07
Re: How Many Chronometers?Gary LaPook11 May 2009, 09:17
Re: Latitude by Noon Sun for BeginnersGary LaPook29 Apr 2009, 22:20
Re: Latitude by Noon Sun for BeginnersGary LaPook29 Apr 2009, 08:30
Re: Latitude by Noon Sun for BeginnersGary LaPook29 Apr 2009, 03:47
Re: Lat/Long by Noon SunGary LaPook27 Apr 2009, 22:15
Brandis SextantGary LaPook27 Apr 2009, 21:26
Re: Lat/Long by Noon SunGary LaPook27 Apr 2009, 01:11
Re: Artificial horizon questionGary LaPook20 Apr 2009, 21:48
Re: Artificial horizon questionGary LaPook20 Apr 2009, 09:51
Re: Artificial horizon questionGary LaPook20 Apr 2009, 01:44
Re: Modifications to 2102-DGary LaPook18 Apr 2009, 23:52
Re: Modifications to 2102-DGary LaPook17 Apr 2009, 21:41
Modifications to 2102-DGary LaPook17 Apr 2009, 02:11
Re: Lat/Lon by "Noon Sun" & The Noon Fix PROVE ITGary LaPook16 Apr 2009, 20:14
Re: New compact backup CELNAV system RENAMED Accuracyof Bygrave Slide RuleGary LaPook14 Apr 2009, 23:25
Re: New compact backup CELNAV system RENAMED Accuracyof Bygrave Slide RuleGary LaPook14 Apr 2009, 22:28
Re: The Noon FixGary LaPook11 Apr 2009, 22:15
Re: The Noon FixGary LaPook11 Apr 2009, 19:54
Re: New compact backup CELNAV system RENAMED Accuracyof Bygrave Slide RuleGary LaPook11 Apr 2009, 07:52
Re: New compact backup CELNAV system RENAMED Accuracyof Bygrave Slide RuleGary LaPook11 Apr 2009, 07:19
Re: New compact backup CELNAV systemGary LaPook10 Apr 2009, 21:22
Re: The Noon FixGary LaPook10 Apr 2009, 18:38
Re: NasrGary LaPook29 Mar 2009, 23:15
Re: HO249 errors status?Gary LaPook27 Mar 2009, 21:35
Re: Loran-CGary LaPook20 Mar 2009, 18:33
Re: New compact backup CELNAV systemGary LaPook17 Mar 2009, 23:26
Re: (Re: Navigation in Fog)SKY COMPASSGary LaPook15 Mar 2009, 22:51
Re: Sky compass (polarizing sunlight compass)Gary LaPook9 Mar 2009, 20:26
Re: Sky compass (polarizing sunlight compass)Gary LaPook9 Mar 2009, 20:19
Re: Brygrave slide rule for compact CELNAV backupsystemGary LaPook8 Mar 2009, 18:11
Re: New compact backup CELNAV systemGary LaPook7 Mar 2009, 22:39
Brygrave slide rule for compact CELNAV backup systemGary LaPook7 Mar 2009, 17:43
Re: New compact backup CELNAV systemGary LaPook3 Mar 2009, 11:00
Re: New compact backup CELNAV systemGary LaPook2 Mar 2009, 03:03
Re: New compact backup CELNAV systemGary LaPook1 Mar 2009, 23:24
Multi-hull sailingGary LaPook1 Mar 2009, 07:22
Re: New compact backup CELNAV systemGary LaPook1 Mar 2009, 01:22
Re: New compact backup CELNAV systemGary LaPook28 Feb 2009, 06:29
Re: New compact backup CELNAV systemGary LaPook27 Feb 2009, 19:31
Re: New compact backup CELNAV systemGary LaPook27 Feb 2009, 19:19
Re: New compact backup CELNAV systemGary LaPook27 Feb 2009, 18:34
Re: New compact backup CELNAV systemGary LaPook27 Feb 2009, 09:37
Re: New compact backup CELNAV systemGary LaPook26 Feb 2009, 08:21
Re: New compact backup CELNAV systemGary LaPook26 Feb 2009, 06:54
Re: New compact backup CELNAV systemGary LaPook25 Feb 2009, 21:39
Re: New compact backup CELNAV systemGary LaPook25 Feb 2009, 05:51
Re: New compact backup CELNAV systemGary LaPook24 Feb 2009, 22:28
Re: problem postingGary LaPook24 Feb 2009, 20:47
Re: New compact backup CELNAV systemGary LaPook24 Feb 2009, 20:28
New compact backup CELNAV systemGary LaPook24 Feb 2009, 20:13
New compact backup CELNAV system (changed for archive)Gary LaPook24 Feb 2009, 20:06
Problem postingGary LaPook24 Feb 2009, 12:36
Re: Precomputed LOP for sailboat landfallGary LaPook22 Feb 2009, 20:19
Re: FW: [San Francisco Sailing] reusing old nauticalalmanacsGary LaPook22 Feb 2009, 20:15
Re: Universal plotting sheetGary LaPook22 Feb 2009, 07:54
Re: Sights, Errors ,and tthe A-12Gary LaPook20 Feb 2009, 22:03
Re: Some SitesGary LaPook20 Feb 2009, 08:20
Re: HO249 errors status?Gary LaPook19 Feb 2009, 01:54
Re: Cylindrical Slide RulesGary LaPook15 Feb 2009, 08:31
Re: Cylindrical Slide RulesGary LaPook12 Feb 2009, 13:50
Re: How flat do sextant mirrors need to be?Gary LaPook31 Jan 2009, 01:24
Re: Newbie Question - Parallel LOPsGary LaPook30 Jan 2009, 16:10
Re: chronometer dials: 12 or 24 hours?Gary LaPook21 Jan 2009, 06:26
Re: ChartsGary LaPook20 Jan 2009, 02:37
Re: Size of a nautical mileGary LaPook15 Jan 2009, 22:38
Re: Size of a nautical mileGary LaPook15 Jan 2009, 22:22
Re: FW: Re: Chronometer SuggestionsGary LaPook15 Jan 2009, 22:12
Re: FW: Re: Chronometer SuggestionsGary LaPook15 Jan 2009, 21:33
Re: FW: Re: Chronometer SuggestionsGary LaPook15 Jan 2009, 20:09
Re: FW: Re: Chronometer SuggestionsGary LaPook15 Jan 2009, 08:24
Re: FW: Re: Chronometer SuggestionsGary LaPook15 Jan 2009, 01:34
Re: FW: Re: Chronometer SuggestionsGary LaPook10 Jan 2009, 07:31
Re: Chronometer SuggestionsGary LaPook6 Jan 2009, 23:53
Re: Chronometer SuggestionsGary LaPook6 Jan 2009, 23:45
Re: Chronometer SuggestionsGary LaPook6 Jan 2009, 23:25
Re: Chronometer SuggestionsGary LaPook6 Jan 2009, 21:15
Re: Chronometer SuggestionsGary LaPook6 Jan 2009, 20:48
Re: Leap seconds at Big Ben.Gary LaPook6 Jan 2009, 09:03
Re: Leap secondsGary LaPook4 Jan 2009, 11:06
Re: Leap secondsGary LaPook4 Jan 2009, 05:42
Re: bubble sextant manual scanned, put on webGary LaPook31 Dec 2008, 08:32
Re: Leap secondsGary LaPook30 Dec 2008, 21:52
Re: Info on Kollsman 6226-1972-01 bubble, 2 powerGary LaPook28 Dec 2008, 05:07
Re: Regarding fix bearingsGary LaPook26 Dec 2008, 09:55
Re: Regarding fix bearingsGary LaPook21 Dec 2008, 22:34
Re: Fw: Chichester's Calculations ( Sine-Cosinemethod)Gary LaPook21 Dec 2008, 11:45
Re: Regarding fix bearingsGary LaPook21 Dec 2008, 09:59
Re: With the fleetGary LaPook20 Dec 2008, 17:57
Re: Bubble SextantsGary LaPook16 Dec 2008, 19:23
Re: Bubble SextantsGary LaPook16 Dec 2008, 17:55
Re: Bubble SextantsGary LaPook16 Dec 2008, 10:49
Re: Fw: Chichester's Calculations ( comparisons ofsight reduction methods)Gary LaPook16 Dec 2008, 01:33
Re: Fw: Chichester's Calculations ( Sine-Cosinemethod)Gary LaPook15 Dec 2008, 11:13
Re: Fw: Chichester's Calculations ( Sine-Cosinemethod)Gary LaPook15 Dec 2008, 10:01
Re: sextants on aeroplanesGary LaPook14 Dec 2008, 01:00
Re: sextants on aeroplanesGary LaPook13 Dec 2008, 16:16
See the moon tonightGary LaPook12 Dec 2008, 19:49
Re: Fw: ChichesterGary LaPook12 Dec 2008, 11:57
Re: Fw: Chichester's Calculations ( Sine-Cosinemethod)Gary LaPook12 Dec 2008, 11:44
Re: Fw: Chichester's Calculations ( Sine-Cosinemethod)Gary LaPook10 Dec 2008, 10:47
Re: Fw: Chichester's Calculations ( correction)Gary LaPook9 Dec 2008, 19:20
Re: Fw: Chichester's CalculationsGary LaPook9 Dec 2008, 09:54
Re: Fw: Chichester's CalculationsGary LaPook9 Dec 2008, 05:17
Re: Fw: Chichester's CalculationsGary LaPook8 Dec 2008, 08:52
Re: chichester's calculationsGary LaPook7 Dec 2008, 01:21
Re: Dip errorGary LaPook5 Dec 2008, 08:42
Re: Dip errorGary LaPook4 Dec 2008, 22:34
Re: sextants on aeroplanesGary LaPook3 Dec 2008, 10:29
Re: Venus, Jupiter, and the MoonGary LaPook3 Dec 2008, 06:53
Re: Site detailsGary LaPook30 Nov 2008, 12:11
Re: Site detailsGary LaPook30 Nov 2008, 12:04
Re: sextants on aeroplanesGary LaPook29 Nov 2008, 10:57
Re: Yrvind folding sextantGary LaPook26 Nov 2008, 18:29
Re: Digital Camera Sextant HybridGary LaPook24 Nov 2008, 21:18
Re: Digital Camera Sextant HybridGary LaPook24 Nov 2008, 11:31
Re: Digital Camera Sextant HybridGary LaPook24 Nov 2008, 08:27
Re: sextants on aeroplanesGary LaPook19 Nov 2008, 10:18
Re: Need help to track down errorsGary LaPook17 Nov 2008, 12:12
Re: Some navigational news storiesGary LaPook16 Nov 2008, 19:29
Re: Can someone identify thisGary LaPook15 Nov 2008, 17:29
Re: Can someone identify thisGary LaPook15 Nov 2008, 01:24
Re: Can someone identify thisGary LaPook14 Nov 2008, 23:29
Re: Need help to track down errorsGary LaPook14 Nov 2008, 19:40
Re: Can someone identify thisGary LaPook14 Nov 2008, 03:25
Re: Need help to track down errorsGary LaPook13 Nov 2008, 20:06
Re: Need help to track down errorsGary LaPook13 Nov 2008, 19:57
Re: Need help to track down errorsGary LaPook13 Nov 2008, 19:54
Re: Need help to track down errorsGary LaPook13 Nov 2008, 13:14
Re: Need help to track down errorsGary LaPook13 Nov 2008, 13:12
Re: Need help to track down errorsGary LaPook13 Nov 2008, 11:34
Re: Can someone identify thisGary LaPook13 Nov 2008, 10:25
Re: Need help to track down errorsGary LaPook13 Nov 2008, 10:02
Re: Need help to track down errorsGary LaPook13 Nov 2008, 09:56
Re: Another GPS-aided accidentGary LaPook11 Nov 2008, 18:18
Re: Another GPS-aided accidentGary LaPook11 Nov 2008, 18:13
Re: Using Polaris to check sextant sights.Gary LaPook11 Nov 2008, 18:09
Re: Using Polaris to check sextant sights.Gary LaPook10 Nov 2008, 20:15
Re: Using Polaris to check sextant sights.Gary LaPook10 Nov 2008, 20:04
Re: Using Polaris to check sextant sights.Gary LaPook10 Nov 2008, 20:01
Using Polaris to check sextant sights.Gary LaPook10 Nov 2008, 20:00
Where to obtain the Air AlmanacGary LaPook10 Nov 2008, 19:54
Re: The Moon and bubble sextantGary LaPook10 Nov 2008, 09:30
Re: The Moon and bubble sextantGary LaPook10 Nov 2008, 08:41
Re: Kollsman periscopic pendulous sextantGary LaPook22 Oct 2008, 09:20
Re: Error to Printed HO 249 Volume 2Gary LaPook22 Oct 2008, 08:31
Re: Error to Printed HO 249 Volume 2Gary LaPook21 Oct 2008, 06:54
Bygrave slide ruleGary LaPook27 Sep 2008, 11:01
Re: Index error by a star-star distanceGary LaPook22 Sep 2008, 17:52
Re: Hybrid Artificial HorizonGary LaPook13 Sep 2008, 22:42
Re: Hybrid Artificial HorizonGary LaPook13 Sep 2008, 07:35
Re: Hybrid Artificial HorizonGary LaPook13 Sep 2008, 05:24
Re: A-12 etc.Gary LaPook4 Sep 2008, 07:32
Re: A-12 etc.Gary LaPook4 Sep 2008, 07:30
Proper method of taking a sun line from a boatGary LaPook4 Sep 2008, 07:13
Re: Polaris SHAGary LaPook4 Sep 2008, 06:40
Re: Kollsman periscopic pendulous sextantGary LaPook1 Sep 2008, 08:51
Re: Kollsman periscopic pendulous sextantGary LaPook1 Sep 2008, 07:03
Re: Kollsman periscopic pendulous sextantGary LaPook1 Sep 2008, 07:01
Re: Kollsman periscopic pendulous sextantGary LaPook1 Sep 2008, 07:01
Re: Kollsman periscopic pendulous sextantGary LaPook1 Sep 2008, 04:00
Re: Kollsman periscopic pendulous sextantGary LaPook31 Aug 2008, 19:27
Re: Kollsman periscopic pendulous sextantGary LaPook31 Aug 2008, 02:49
Re: Kollsman periscopic pendulous sextantGary LaPook29 Aug 2008, 05:45
Re: accuracy of glass artificial horizon figureGary LaPook23 Aug 2008, 01:12
Re: accuracy of glass artificial horizon figureGary LaPook22 Aug 2008, 08:42
Re: accuracy of glass artificial horizon figureGary LaPook21 Aug 2008, 17:19
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook21 Aug 2008, 16:08
Re: Celestial up in the airGary LaPook20 Aug 2008, 20:04
Re: MA-1 pendulous mirror sextant on ebayGary LaPook20 Aug 2008, 03:45
Re: Bubble SextantGary LaPook20 Aug 2008, 03:44
MA-1 pendulous mirror sextant on ebayGary LaPook19 Aug 2008, 19:30
Re: Bubble SextantGary LaPook19 Aug 2008, 19:29
Re: Bubble SextantGary LaPook19 Aug 2008, 08:14
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook18 Aug 2008, 21:34
Re: Circular "Navigational Computer"Gary LaPook18 Aug 2008, 21:31
Re: Character Test - Degree SymbolGary LaPook18 Aug 2008, 21:21
Re: Dalton E6B Dead Reckoning ComputerGary LaPook18 Aug 2008, 10:05
Re: line of position computerGary LaPook18 Aug 2008, 08:41
Re: Polhemus computerGary LaPook9 Aug 2008, 23:24
Re: Celestial up in the airGary LaPook9 Aug 2008, 23:21
Re: Circular "Navigational Computer"Gary LaPook6 Aug 2008, 11:08
Re: Polhemus computerGary LaPook6 Aug 2008, 09:19
Re: Celestial up in the airGary LaPook6 Aug 2008, 08:52
Re: Dalton E6B Dead Reckoning ComputerGary LaPook3 Aug 2008, 01:35
Re: Dalton E6B Dead Reckoning ComputerGary LaPook3 Aug 2008, 01:14
Re: Dalton E6B Dead Reckoning ComputerGary LaPook3 Aug 2008, 00:42
Re: Dalton E6B Dead Reckoning ComputerGary LaPook2 Aug 2008, 19:44
Taking four stars for checking accuracy of fixGary LaPook1 Aug 2008, 10:44
Re: Star IdentificationGary LaPook31 Jul 2008, 00:56
Re: Star IdentificationGary LaPook30 Jul 2008, 09:09
Re: Star IdentificationGary LaPook30 Jul 2008, 08:44
Re: Celestial up in the airGary LaPook29 Jul 2008, 02:20
Re: Celestial up in the airGary LaPook28 Jul 2008, 23:43
Re: Celestial up in the airGary LaPook28 Jul 2008, 12:30
Re: Celestial up in the airGary LaPook28 Jul 2008, 12:24
Re: Celestial up in the airGary LaPook26 Jul 2008, 02:48
Re: Celestial up in the airGary LaPook25 Jul 2008, 10:10
Re: An attachment on attachmentsGary LaPook25 Jul 2008, 07:49
Re: Polhemus computerGary LaPook24 Jul 2008, 09:39
Re: Celestial up in the airGary LaPook24 Jul 2008, 09:34
Re: Exercise #16 High Altitude Sights near NoonGary LaPook24 Jul 2008, 05:56
Re: LOP by Sextant Box ShadowGary LaPook23 Jul 2008, 19:43
Re: Celestial up in the airGary LaPook23 Jul 2008, 09:58
Re: LOP by Sextant Box ShadowGary LaPook23 Jul 2008, 06:07
Re: LOP by Sextant Box ShadowGary LaPook22 Jul 2008, 07:20
Re: LOP by Sextant Box ShadowGary LaPook19 Jul 2008, 23:52
Re: What time is it, really?Gary LaPook18 Jul 2008, 21:21
Re: What time is it, really?Gary LaPook18 Jul 2008, 20:35
Re: What time is it, really?Gary LaPook18 Jul 2008, 08:28
Re: What time is it, really?Gary LaPook18 Jul 2008, 06:36
Re: Polhemus computerGary LaPook15 Jul 2008, 19:49
Polhemus computerGary LaPook15 Jul 2008, 11:12
Re: Celestial up in the airGary LaPook15 Jul 2008, 03:01
Re: Bubble SextantGary LaPook14 Jul 2008, 20:10
Re: Celestial up in the airGary LaPook14 Jul 2008, 02:24
Re: Celestial up in the airGary LaPook14 Jul 2008, 02:06
Re: Celestial up in the airGary LaPook13 Jul 2008, 21:46
Re: Bubble SextantGary LaPook13 Jul 2008, 07:12
Re: Celestial up in the airGary LaPook12 Jul 2008, 18:16
Re: Bubble SextantGary LaPook11 Jul 2008, 20:05
Re: Bubble SextantGary LaPook11 Jul 2008, 18:56
Re: Bubble SextantGary LaPook11 Jul 2008, 01:54
Re: Bubble SextantGary LaPook11 Jul 2008, 01:45
Re: Noon sight for longitudeGary LaPook11 Jul 2008, 01:40
Noon sight for longitudeGary LaPook10 Jul 2008, 06:13
Re: Why no interpolation for Latitude/LHA in sightreduction tables?Gary LaPook9 Jul 2008, 10:15
Re: Why no interpolation for Latitude/LHA in sightreduction tables?Gary LaPook6 Jul 2008, 07:07
Re: Why no interpolation for Latitude/LHA in sightreduction tables?Gary LaPook6 Jul 2008, 06:52
Re: Bubble SextantGary LaPook5 Jul 2008, 10:19
Re: Bubble SextantGary LaPook5 Jul 2008, 10:14
Re: A little vanityGary LaPook3 Jul 2008, 05:45
Re: Why no interpolation for Latitude/LHA in sightreduction tables?Gary LaPook30 Jun 2008, 03:30
Re: Circular "Navigational Computer"Gary LaPook26 Jun 2008, 13:41
Re: Circular "Navigational Computer"Gary LaPook26 Jun 2008, 13:36
Re: Circular "Navigational Computer"Gary LaPook22 Jun 2008, 05:54
Re: sight reduction calculatorGary LaPook22 Jun 2008, 05:45
Re: Circular "Navigational Computer"Gary LaPook22 Jun 2008, 05:37
A-12 manualGary LaPook21 Jun 2008, 06:19
Re: longitude around noon (a twist)Gary LaPook21 Jun 2008, 05:52
Re: Circular "Navigational Computer"Gary LaPook21 Jun 2008, 04:57
Re: What do "d" and "v" really stand for?Gary LaPook21 Jun 2008, 04:50
Re: What do "d" and "v" really stand for?Gary LaPook20 Jun 2008, 14:34
Re: Course to steer. Has anybody come across thislittle rule of thumb before?Gary LaPook20 Jun 2008, 05:55
Re: sight reduction calculatorGary LaPook20 Jun 2008, 05:51
Re: What do "d" and "v" really stand for?Gary LaPook20 Jun 2008, 05:41
Re: What do "d" and "v" really stand for?Gary LaPook20 Jun 2008, 05:29
Re: What do "d" and "v" really stand for?Gary LaPook20 Jun 2008, 04:35
Re: What do "d" and "v" really stand for?Gary LaPook20 Jun 2008, 03:41
Re: sight reduction calculatorGary LaPook19 Jun 2008, 21:48
Re: accurate sextantGary LaPook19 Jun 2008, 13:36
Re: sight reduction calculatorGary LaPook19 Jun 2008, 13:15
Re: Course to steer. Has anybody come across thislittle rule of thumb before?Gary LaPook19 Jun 2008, 04:53
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook16 Jun 2008, 13:23
Re: Bygrave slide rule , o-rings, circular slide rulesGary LaPook15 Jun 2008, 12:29
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook15 Jun 2008, 05:11
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook15 Jun 2008, 05:04
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook15 Jun 2008, 04:19
Re: Circular "Navigational Computer"Gary LaPook15 Jun 2008, 01:19
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook14 Jun 2008, 14:13
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook14 Jun 2008, 08:03
Re: 3-Star Fix - "Canned Survival Problem"Gary LaPook14 Jun 2008, 07:44
Re: Centerless SextantGary LaPook14 Jun 2008, 00:57
Re: Nav Weekend UpdatesGary LaPook13 Jun 2008, 12:53
Re: Pub. 229 vs. 249 table formatsGary LaPook6 Jun 2008, 03:12
Re: Character Test - Degree SymbolGary LaPook6 Jun 2008, 02:58
Re: Character Test - Degree SymbolGary LaPook5 Jun 2008, 13:21
Login problemsGary LaPook5 Jun 2008, 05:15
Noon sight for longitudeGary LaPook5 Jun 2008, 03:05
Bumstead sun compassGary LaPook5 Jun 2008, 03:04
Re: Character Test - Degree SymbolGary LaPook5 Jun 2008, 02:28
Re: Plotting toolsGary LaPook30 May 2008, 12:24
Re: Plotting DR CoursesGary LaPook28 May 2008, 04:30
Re: Plotting DR CoursesGary LaPook28 May 2008, 04:23
Re: Plotting toolsGary LaPook28 May 2008, 02:57
Re: Nav Exercise #3- Azimuth of the SunGary LaPook28 May 2008, 02:14
Re: Nav Exercise #3- Azimuth of the SunGary LaPook27 May 2008, 04:23
Re: Navigation exerciseGary LaPook26 May 2008, 05:07
Re: IntroductionGary LaPook5 May 2008, 06:51
Re: IntroductionGary LaPook4 May 2008, 15:52
Re: IntroductionGary LaPook4 May 2008, 15:31
Re: IntroductionGary LaPook1 May 2008, 20:04
Re: IntroductionGary LaPook1 May 2008, 20:03
Re: Pilot chartsGary LaPook30 Apr 2008, 19:06
Re: Pilot chartsGary LaPook17 Apr 2008, 06:06
Re: Pilot chartsGary LaPook17 Apr 2008, 05:39
Re: Navigation without Leap SecondsGary LaPook15 Apr 2008, 23:50
Re: Pilot chartsGary LaPook15 Apr 2008, 23:43
Pilot chartsGary LaPook15 Apr 2008, 23:29
Re: Navigation without Leap SecondsGary LaPook15 Apr 2008, 23:27
Re: Navigation without Leap SecondsGary LaPook15 Apr 2008, 20:04
Re: Navigation without Leap SecondsGary LaPook15 Apr 2008, 20:00
Re: Haversine formulaGary LaPook8 Apr 2008, 16:25
Re: What is a degree of latitude?Gary LaPook24 Mar 2008, 00:52
Re: Ball Recording Sextant Mark 1 Mod. 0Gary LaPook20 Mar 2008, 06:33
Re: Ball Recording Sextant Mark 1 Mod. 0Gary LaPook19 Mar 2008, 22:45
Re: Ball Recording Sextant Mark 1 Mod. 0Gary LaPook19 Mar 2008, 18:18
Re: Celestial Navigation without a sextant.Gary LaPook12 Mar 2008, 10:19
Re: Navigation "simplified". was: Buckley theNavigatorGary LaPook9 Mar 2008, 21:17
Re: Buckley the NavigatorGary LaPook8 Mar 2008, 20:03
Re: Buckley the NavigatorGary LaPook8 Mar 2008, 20:03
Re: Celestial Navigation without a sextant.Gary LaPook8 Mar 2008, 11:17
Re: Buckley the NavigatorGary LaPook8 Mar 2008, 10:33
Re: Buckley the NavigatorGary LaPook3 Mar 2008, 00:23
Re: accurate sextantGary LaPook23 Feb 2008, 01:20
Re: Captain Bligh's other mutinyGary LaPook23 Jan 2008, 09:57
Re: Sextants in the newsGary LaPook23 Jan 2008, 01:01
Re: Interesting siteGary LaPook15 Jan 2008, 22:23
Re: theodolitesGary LaPook8 Jan 2008, 22:07
Re: The End of Celestial Navigation??Gary LaPook4 Jan 2008, 21:24
Re: The End of Celestial Navigation??Gary LaPook4 Jan 2008, 17:43
Re: Exhibit: Finding Our Place in the WorldGary LaPook1 Jan 2008, 13:52
Re: Sextant calibration in the workshopGary LaPook28 Dec 2007, 20:42
Re: Japanese Navy Type 2 bubble sextantGary LaPook27 Dec 2007, 19:28
Re: Navigation without dead reckoningGary LaPook23 Dec 2007, 21:54
Re: Japanese Navy Type 2 bubble sextantGary LaPook22 Dec 2007, 20:57
Re: sight reduction tablesGary LaPook21 Dec 2007, 10:10
Re: Additional corrections to the sextant altitude inair navigationGary LaPook15 Dec 2007, 23:34
Re: Additional corrections to the sextant altitude inair navigationGary LaPook15 Dec 2007, 23:09
Re: Additional corrections to the sextant altitude inair navigationGary LaPook14 Dec 2007, 17:32
Re: Additional corrections to the sextant altitude inair navigationGary LaPook14 Dec 2007, 11:48
Re: RefractionGary LaPook13 Dec 2007, 00:16
Re: Certain Errors in "Certaine Errors".Gary LaPook12 Dec 2007, 00:58
Re: Certain Errors in "Certaine Errors".Gary LaPook12 Dec 2007, 00:56
Re: Certain Errors in "Certaine Errors".Gary LaPook11 Dec 2007, 23:25
Re: A-10 Sextant Maintenance ManualGary LaPook11 Dec 2007, 08:54
Re: nomograms for altitude correctionGary LaPook11 Dec 2007, 08:42
Re: RefractionGary LaPook11 Dec 2007, 08:30
Re: Certaine Errors in Navigation CorrectedGary LaPook10 Dec 2007, 19:50
Re: Certaine Errors in Navigation CorrectedGary LaPook10 Dec 2007, 19:44
Re: Certaine Errors in Navigation CorrectedGary LaPook10 Dec 2007, 01:52
Re: A-10 Sextant Maintenance ManualGary LaPook7 Dec 2007, 21:59
Re: Wright's "Certaine Errors In Navigation" isavailableGary LaPook7 Dec 2007, 20:09
Re: automatic celestial navigationGary LaPook7 Dec 2007, 07:21
Re: automatic celestial navigationGary LaPook7 Dec 2007, 07:09
Re: automatic celestial navigationGary LaPook6 Dec 2007, 20:28
Wright's "Certaine Errors In Navigation" is availableGary LaPook6 Dec 2007, 19:54
Re: Certaine Errors in Navigation CorrectedGary LaPook6 Dec 2007, 19:53
Re: Certaine Errors in Navigation CorrectedGary LaPook5 Dec 2007, 04:03
Re: Certaine Errors in Navigation CorrectedGary LaPook5 Dec 2007, 00:55
Re: Certaine Errors in Navigation CorrectedGary LaPook4 Dec 2007, 09:18
Re: Certaine Errors in Navigation CorrectedGary LaPook4 Dec 2007, 08:44
Re: Wright's 1599 Chart showing ScilliesGary LaPook30 Nov 2007, 00:57
Re: Errors in online version of HO249Gary LaPook29 Nov 2007, 19:04
Re: Errors in online version of HO249Gary LaPook29 Nov 2007, 18:53
Re: Children's land-locked "Sextant"Gary LaPook29 Nov 2007, 17:59
Re: Children's land-locked "Sextant"Gary LaPook29 Nov 2007, 13:17
Re: Children's land-locked "Sextant"Gary LaPook29 Nov 2007, 13:08
Re: Wright's 1599 Chart showingScilliesGary LaPook29 Nov 2007, 12:29
Wright's 1599 Chart showing ScilliesGary LaPook29 Nov 2007, 01:11
Re: Children's land-locked "Sextant"Gary LaPook28 Nov 2007, 19:28
Re: Children's land-locked "Sextant"Gary LaPook28 Nov 2007, 17:49
Errors in online version of HO249Gary LaPook28 Nov 2007, 09:33
Re: Children's land-locked "Sextant"Gary LaPook28 Nov 2007, 08:13
Re: Children's land-locked "Sextant"Gary LaPook28 Nov 2007, 07:45
Re: Children's land-locked "Sextant"Gary LaPook28 Nov 2007, 07:33
Re: Children's land-locked "Sextant"Gary LaPook27 Nov 2007, 17:56
Re: Calibrating a sextant scaleGary LaPook26 Nov 2007, 03:28
Re: How far is polaris?Gary LaPook23 Nov 2007, 07:05
Re: How far is polaris?Gary LaPook23 Nov 2007, 07:01
Re: Off Center Sextant Scope ObservationsGary LaPook23 Nov 2007, 04:01
Re: How far is polaris?Gary LaPook21 Nov 2007, 21:21
Re: RefractionGary LaPook21 Nov 2007, 21:05
Re: Almanacs, theory and use.Gary LaPook21 Nov 2007, 09:07
Re: Almanacs, theory and use.Gary LaPook20 Nov 2007, 19:36
Re: Almanacs, theory and use.Gary LaPook20 Nov 2007, 19:31
RefractionGary LaPook20 Nov 2007, 19:04
Re: Theoretical Question - Height of Eye from ShoreGary LaPook18 Nov 2007, 08:13
RefractionGary LaPook9 Nov 2007, 10:09
Re: Direct methodsGary LaPook9 Nov 2007, 09:43
Re: Direct methodsGary LaPook9 Nov 2007, 09:30
Re: The "big" sextant manufacturesGary LaPook9 Nov 2007, 03:56
Re: Goerz and Bumstead Sun CompassesGary LaPook6 Nov 2007, 00:38
Re: Goerz and Bumstead Sun CompassesGary LaPook6 Nov 2007, 00:33
Re: Goerz and Bumstead Sun CompassesGary LaPook6 Nov 2007, 00:30
Re: Goerz and Bumstead Sun CompassesGary LaPook6 Nov 2007, 00:19
Improving accuracy of fix by shooting 4 starsGary LaPook4 Nov 2007, 06:47
Sky compass (polarizing sunlight compass)Gary LaPook4 Nov 2007, 06:39
Sky compass (polarizing cunlight compass)Gary LaPook4 Nov 2007, 06:33
Re: Goerz and Bumstead Sun CompassesGary LaPook4 Nov 2007, 06:16
Re: Direct methodsGary LaPook4 Nov 2007, 06:13
Re: Direct methodsGary LaPook2 Nov 2007, 06:47
Re: Ancient mariners enjoyed Hawaiian holidaysGary LaPook31 Oct 2007, 19:38
Re: Computaion of table of offsets.Gary LaPook30 Oct 2007, 07:54
Re: Poor St. HilaireGary LaPook29 Oct 2007, 19:53
Computaion of table of offsets.Gary LaPook29 Oct 2007, 09:01
Re: Poor St. HilaireGary LaPook29 Oct 2007, 08:40
Re: Poor St. HilaireGary LaPook29 Oct 2007, 08:19
Re: Marq St. Hilaire - Altitude intercept methodGary LaPook29 Oct 2007, 08:03
Re: Poor St. HilaireGary LaPook27 Oct 2007, 00:12
Re: Poor St. HilaireGary LaPook26 Oct 2007, 22:40
Re: Marq St. Hilaire - Altitude intercept methodGary LaPook26 Oct 2007, 22:34
Re: Marq St. Hilaire - Altitude intercept methodGary LaPook26 Oct 2007, 07:48
Re: Poor St. HilaireGary LaPook25 Oct 2007, 09:56
Re: Chronometers after radio time signalsGary LaPook24 Oct 2007, 05:50
Re: Chronometers after radio time signalsGary LaPook23 Oct 2007, 18:33
Re: Chronometers after radio time signalsGary LaPook23 Oct 2007, 16:47
Re: Chronometers after radio time signalsGary LaPook23 Oct 2007, 15:04
Re: 6080 ft vs 1852 mGary LaPook23 Oct 2007, 06:01
Re: Single-handed sightsGary LaPook22 Oct 2007, 19:48
Re: Heath Hezzanith questionGary LaPook22 Oct 2007, 16:35
Re: Heath Hezzanith questionGary LaPook22 Oct 2007, 14:51
Re: Obtaining Azimuths. was: Re:Burdwood's TablesGary LaPook15 Oct 2007, 16:53
Re: Rust's diagram for computing azimuthGary LaPook12 Oct 2007, 04:59
Rust's diagram for computing azimuthGary LaPook8 Oct 2007, 18:42
Re: Usefulnes of inspection tablesGary LaPook7 Oct 2007, 22:20
Usefulnes of inspection tablesGary LaPook7 Oct 2007, 20:23
Re: Certaine Errors in Navigation CorrectedGary LaPook7 Oct 2007, 20:05
Re: sight reduction tablesGary LaPook2 Oct 2007, 21:10
Re: Latitude by transits of a circumpolar star bothabove and below the poleGary LaPook2 Oct 2007, 08:34
Re: sight reduction tablesGary LaPook30 Sep 2007, 18:46
Re: sight reduction tablesGary LaPook29 Sep 2007, 19:18
Re: CN in the GPS AgeGary LaPook28 Sep 2007, 08:48
Re: Certaine Errors in Navigation CorrectedGary LaPook26 Sep 2007, 07:41
Re: Certaine Errors in Navigation CorrectedGary LaPook26 Sep 2007, 07:35
Certaine Errors in Navigation CorrectedGary LaPook22 Sep 2007, 06:25
Re: Certaine Errors in Navigation CorrectedGary LaPook21 Sep 2007, 22:50
Re: Certaine Errors in Navigation CorrectedGary LaPook21 Sep 2007, 21:58
Certaine Errors in Navigation CorrectedGary LaPook21 Sep 2007, 20:29
Re: The shipwreck of Admiral ShovellGary LaPook17 Sep 2007, 22:05
Re: The shipwreck of Admiral ShovellGary LaPook17 Sep 2007, 18:20
Re: The shipwreck of Admiral ShovellGary LaPook17 Sep 2007, 07:50
Re: Pub249 etcGary LaPook10 Sep 2007, 06:36
Re: CHO-T ManualGary LaPook9 Sep 2007, 08:58
CHO-T ManualGary LaPook9 Sep 2007, 08:22
Re: nomograms for altitude correctionGary LaPook9 Sep 2007, 07:36
Re: The shipwreck of Admiral ShovellGary LaPook30 Aug 2007, 21:22
Re: The shipwreck of Admiral ShovellGary LaPook30 Aug 2007, 21:14
Re: The shipwreck of Admiral ShovellGary LaPook30 Aug 2007, 17:37
Re: The shipwreck of Admiral ShovellGary LaPook29 Aug 2007, 23:36
Re: The shipwreck of Admiral ShovellGary LaPook29 Aug 2007, 23:22
Re: The shipwreck of Admiral ShovellGary LaPook27 Aug 2007, 16:28
Re: Time zone by letter and DSTGary LaPook21 Aug 2007, 09:32
Re: Time zone by letter and DSTGary LaPook20 Aug 2007, 09:01
Re: Time zone by letter and DSTGary LaPook20 Aug 2007, 08:54
Re: Celestial navigation in the field artilleryGary LaPook19 Aug 2007, 05:48
Celestial navigation in the field artilleryGary LaPook17 Aug 2007, 09:41
Re: Latitude of prime vertical sightGary LaPook1 Aug 2007, 17:08
Re: watch as compassGary LaPook31 Jul 2007, 05:19
Re: Dennert & Pape MHR-1 HR-2 Cylindrical Slide LineRulerGary LaPook27 Jul 2007, 07:46
Re: Dennert & Pape MHR-1 HR-2Cylindrical Slide Line RulerGary LaPook27 Jul 2007, 07:44
Re: watch as compassGary LaPook25 Jul 2007, 08:36
MA-2 Bubble SextantGary LaPook11 Jul 2007, 22:28
Re: gyroscopic compassesGary LaPook23 Jun 2007, 18:20
Re: Astro Compass attachmentGary LaPook14 May 2007, 01:57
Re: Fatal interaction between yacht and ferry.Gary LaPook11 May 2007, 07:17
Re: Fatal interaction between yacht and ferry.Gary LaPook10 May 2007, 11:51
Re: Fatal interaction betweeu yacht and ferry.Gary LaPook9 May 2007, 00:52
Re: Fatal interaction betweeu yacht and ferry.Gary LaPook8 May 2007, 22:30
Re: Fatal interaction betweeu yacht and ferry.Gary LaPook8 May 2007, 22:30
Re: Fatal interaction betweeu yacht and ferry.Gary LaPook8 May 2007, 19:36
Re: Fatal interaction betweeu yacht and ferry.Gary LaPook8 May 2007, 08:14
Re: Fatal interaction betweeu yacht and ferry.Gary LaPook7 May 2007, 22:59
Banning of 121.5 EPIRBsGary LaPook7 May 2007, 19:35
Re: Fatal interaction betweeu yacht and ferry.Gary LaPook7 May 2007, 19:12
Re: Fatal interaction betweeu yacht and ferry.Gary LaPook7 May 2007, 17:44
Re: Tables of Trig Functions and Logs of TrigFunctionsGary LaPook6 May 2007, 06:08
Re: The mystery of the Queensland version of the MarieCeleste.Gary LaPook5 May 2007, 22:10
Re: The mystery of the Queensland version of the MarieCeleste.Gary LaPook5 May 2007, 20:31
Re: Tables of Trig Functions and Logs of TrigFunctionsGary LaPook5 May 2007, 18:43
Re: The mystery of the Queensland version of the MarieCeleste.Gary LaPook5 May 2007, 18:38
Re: The mystery of the Queensland version of the MarieCeleste.Gary LaPook5 May 2007, 18:31
Re: Tables of Trig Functions and Logs of TrigFunctionsGary LaPook3 May 2007, 07:19
Re: Tables of Trig Functions and Logs of TrigFunctionsGary LaPook2 May 2007, 23:42
Re: determination of longitude and the prime verticalGary LaPook29 Apr 2007, 03:08
Re: Point Venus, May 1774Gary LaPook26 Apr 2007, 00:50
Re: Point Venus, May 1774Gary LaPook25 Apr 2007, 21:02
Re: Point Venus, May 1774Gary LaPook25 Apr 2007, 21:00
Re: Point Venus, May 1774Gary LaPook25 Apr 2007, 20:59
Re: Point Venus, May 1774Gary LaPook25 Apr 2007, 18:27
Re: Point Venus, May 1774Gary LaPook25 Apr 2007, 18:19
Re: Back In Hobby: Some Questions, PleaseGary LaPook25 Apr 2007, 17:46
Re: MkIXa bubble sextant performanceGary LaPook24 Apr 2007, 16:53
Re: New MemberGary LaPook23 Apr 2007, 16:29
Re: Sextant calibration. Re:Coordinates on Cook's mapsGary LaPook22 Apr 2007, 06:09
Re: Cocked hats, again.Gary LaPook16 Apr 2007, 10:13
Re: Sun compassGary LaPook12 Apr 2007, 16:21
Re: Flight NavigationGary LaPook11 Apr 2007, 18:52
Re: Flight NavigationGary LaPook11 Apr 2007, 17:58
Re: Sperm whale buoyancy.Gary LaPook23 Mar 2007, 17:04
Re: Sperm whale buoyancy.Gary LaPook22 Mar 2007, 00:41
Re: Sperm whale buoyancy.Gary LaPook21 Mar 2007, 20:00
Re: Cocked hats, again.Gary LaPook21 Mar 2007, 17:54
Re: Cocked hats, again.Gary LaPook16 Mar 2007, 22:03
Re: Cocked hats, again.Gary LaPook16 Mar 2007, 20:49
Re: Cocked hats, again.Gary LaPook16 Mar 2007, 20:45
Re: Cocked hats, again.Gary LaPook16 Mar 2007, 20:06
Re: Cocked hats, again.Gary LaPook16 Mar 2007, 20:01
Re: Cocked hats, again.Gary LaPook16 Mar 2007, 19:57
Re: Cocked hats, again.Gary LaPook15 Mar 2007, 22:34
Re: Cocked hats, again.Gary LaPook15 Mar 2007, 21:24
Re: Cocked hats, again.Gary LaPook15 Mar 2007, 21:24
Re: Cocked hats, again.Gary LaPook15 Mar 2007, 17:23
Re: Cocked hats, again.Gary LaPook15 Mar 2007, 04:22
Re: Cocked hats, again.Gary LaPook14 Mar 2007, 22:25
Re: Cocked hats, again.Gary LaPook14 Mar 2007, 08:57
Re: Cocked hats, again.Gary LaPook14 Mar 2007, 00:03
Re: Flight NavigationGary LaPook12 Mar 2007, 19:46
Re: Raw data for bubbleGary LaPook12 Mar 2007, 19:44
Re: Flight NavigationGary LaPook12 Mar 2007, 19:35
Flight NavigationGary LaPook12 Mar 2007, 08:07
Re: Raw data for bubbleGary LaPook12 Mar 2007, 07:41
Re: Raw data for bubbleGary LaPook12 Mar 2007, 02:39
Re: Raw data for bubbleGary LaPook11 Mar 2007, 22:16
Re: Nautical Almanac clarificationGary LaPook10 Mar 2007, 00:44
Re: 200-year-old Nautical Almanacs onlineGary LaPook7 Mar 2007, 10:17
Re: Resolution of systematic errorGary LaPook6 Mar 2007, 09:33
Re: Resolution of systematic errorGary LaPook2 Mar 2007, 11:40
Re: Resolution of systematic errorGary LaPook1 Mar 2007, 10:21
Re: Sonnenstein (sun stone)Gary LaPook28 Feb 2007, 19:47
Sonnenstein (sun stone)Gary LaPook28 Feb 2007, 19:42
Re: Navigation in FogGary LaPook27 Feb 2007, 08:16
Interesting nav web siteGary LaPook27 Feb 2007, 08:14
Re: Navigation in FogGary LaPook21 Feb 2007, 19:27
Re: Navigation in FogGary LaPook21 Feb 2007, 18:14
Re: Navigation in FogGary LaPook21 Feb 2007, 10:52
Re: Navigation in FogGary LaPook20 Feb 2007, 10:35
MA-1 bubble sextantGary LaPook20 Feb 2007, 02:59
Re: missing postGary LaPook20 Feb 2007, 02:13
Re: Navigation in FogGary LaPook19 Feb 2007, 21:03
Missing postGary LaPook19 Feb 2007, 20:29
Re: Navigation in FogGary LaPook19 Feb 2007, 20:28
Re: Navigation in FogGary LaPook19 Feb 2007, 20:19
Re: Navigation in FogGary LaPook19 Feb 2007, 20:09
Re: Navigation in FogGary LaPook18 Feb 2007, 09:16
Re: Navigation in FogGary LaPook18 Feb 2007, 02:13
Using PolarisGary LaPook17 Feb 2007, 11:10
Re: Bubble sextant trialsGary LaPook17 Feb 2007, 10:44
Re: Navigation in FogGary LaPook17 Feb 2007, 10:14
Re: Bubble sextant trialsGary LaPook17 Feb 2007, 08:11
Re: Longitude via lunar altitudes, simplifiedGary LaPook3 Feb 2007, 01:09
Re: First sightsGary LaPook22 Jan 2007, 23:38
Re: Just getting started (Pubs 214/229)Gary LaPook20 Jan 2007, 05:22
Re: Just getting startedGary LaPook19 Jan 2007, 20:12
Re: Just getting startedGary LaPook19 Jan 2007, 20:01
Re: Just getting startedGary LaPook19 Jan 2007, 08:32
Re: Just getting startedGary LaPook18 Jan 2007, 18:32
Re: Revisiting A thought questionGary LaPook2 Jan 2007, 17:13
Re: Bubble sextants on eBayGary LaPook2 Jan 2007, 09:23
Re: Lunar Distances with Alex's SNO-TGary LaPook31 Oct 2006, 18:06
Re: strange legal opinion in usaGary LaPook22 Sep 2006, 21:29
Re: strange legal opinion in usaGary LaPook22 Sep 2006, 21:27
Re: Sextants for use on landGary LaPook7 Sep 2006, 09:06
Re: sextant for use on landGary LaPook7 Sep 2006, 08:46
Re: Deviation Card with GPSGary LaPook29 Jul 2006, 19:24
Re: KeldsGary LaPook26 Jul 2006, 04:41
Re: Deviation Card with GPSGary LaPook24 Jul 2006, 16:58
Re: Deviation Card with GPSGary LaPook24 Jul 2006, 06:24
Re: Units and area.Gary LaPook18 Jul 2006, 17:28
Re: Units and area. was: gipsy moth ivGary LaPook18 Jul 2006, 17:22
Re: Units and area. was: gipsy moth ivGary LaPook17 Jul 2006, 16:50
Re: Z or ZN and a couple other fx 260 to excel conversionsGary LaPook2 Jun 2006, 16:45
Re: What is this?Gary LaPook21 May 2006, 19:07
Re: lunar parallax killed Amelia EarhartGary LaPook20 May 2006, 22:06
Re: lunar parallax killed Amelia EarhartGary LaPook20 May 2006, 21:43
Re: lunar parallax killed Amelia EarhartGary LaPook20 May 2006, 20:27
Re: polaris decGary LaPook19 May 2006, 22:29
Re: Set and driftGary LaPook19 May 2006, 22:27
Re: what is a second?Gary LaPook19 May 2006, 22:18
Re: Learning Resources [was] Re: List Status: we've moved successfully...Gary LaPook19 May 2006, 19:00
[Fwd: Re: lunar parallax killed Amelia Earhart]Gary LaPook19 May 2006, 18:07
Re: polaris decGary LaPook19 May 2006, 17:53
Re: lunar parallax killed Amelia EarhartGary LaPook19 May 2006, 08:52
Re: Moving to NavListGary LaPook16 May 2006, 09:16
Re: A superb site for downloading the old works on navigation -only to the e...Gary LaPook24 Apr 2006, 06:35
Re: Sextant scopes and an old-bold empiricistGary LaPook14 Apr 2006, 20:51
Re: Comments on the unitsGary LaPook14 Apr 2006, 11:06
Re: jet fighter celestial navGary LaPook14 Apr 2006, 11:04
Re: Sextant scopes and an old-bold empiricistGary LaPook14 Apr 2006, 09:24
Re: repairing sextantGary LaPook21 Mar 2006, 23:44
Re: Sumner's Line (Navigation question)Gary LaPook15 Feb 2006, 09:24
Re: Sun squash- was Green Flash and LongitudeGary LaPook18 Jan 2006, 08:06
Re: bubble sextant index errorGary LaPook19 Dec 2005, 19:18
Re: Illinois drainageGary LaPook22 Nov 2005, 12:34
Re: BeginnerGary LaPook13 Sep 2005, 16:57
Re: RefractionGary LaPook16 Aug 2005, 06:05
Re: Timing Lunars with a RockGary LaPook19 Jul 2005, 15:22
Re: Night Vision ScopesGary LaPook11 Jul 2005, 02:03
Re: Plastic sextants and prejudice. was: GPS shortcomings.Gary LaPook15 Jun 2005, 05:51
Re: Long and Time at SeaGary LaPook5 Jun 2005, 01:45
Re: Latitude by length of daylightGary LaPook6 May 2005, 09:49
Re: Instumental error?Gary LaPook20 Apr 2005, 21:24
Re: Artificial horizonGary LaPook22 Feb 2005, 07:52
Re: Artificial horizonGary LaPook22 Feb 2005, 07:46
Re: Why is a sextant like it is?Gary LaPook19 Nov 2004, 10:19
Re: Why is a sextant like it is?Gary LaPook19 Nov 2004, 10:04
Re: Why is a sextant like it is?Gary LaPook18 Nov 2004, 04:32
Re: AveragingGary LaPook20 Oct 2004, 22:16
Re: AveragingGary LaPook20 Oct 2004, 10:29
Re: 0000 not 2400?Gary LaPook18 Oct 2004, 19:30
Re: Historical Magnetic Variation/DeclinationGary LaPook22 Jun 2004, 09:39

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