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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Position-Finding

December, 2017

Index includes 338 messages. Sorted by message ID, in descending order.
SubjectAuthorDate (UT)SizeID
Re: Article by Russell Porter on Latitude without instrumentsGary LaPook31 Dec 2017, 23:501635g41089
Re: Cotter's "History of Nautical Astronomy" on ebayFrank Reed31 Dec 2017, 23:312616g41088
Re: Article by Russell Porter on Latitude without instrumentsRoger W. Sinnott31 Dec 2017, 21:566440g41087
Re: Article by Russell Porter on Latitude without instrumentsGary LaPook31 Dec 2017, 21:112792g41086
Re: Article by Russell Porter on Latitude without instrumentsPaul Saffo31 Dec 2017, 16:252773g41085
Re: First Moon-Star LunarEd Popko31 Dec 2017, 11:444469g41084
Re: Latitude by two stars ...on a Party BoatBob Crawley31 Dec 2017, 09:323142g41083
Re: Solstice Sun LinesDavid Pike31 Dec 2017, 09:315415g41082
Re: First Moon-Star LunarAntoine Couëtte31 Dec 2017, 08:553918g41081
Re: Solstice Sun LinesAntoine Couëtte31 Dec 2017, 06:162536g41080
Re: First Moon-Star LunarAntoine Couëtte31 Dec 2017, 03:2019527g41079
Re: Traditional navigation by slide ruleAlan S31 Dec 2017, 01:001961g41078
Article by Russell Porter on Latitude without instrumentsWayne Hilliard30 Dec 2017, 22:052213289g41077
Re: Latitude by two stars ...on a Party BoatGreg Rudzinski30 Dec 2017, 17:381837g41076
Re: Solstice Sun LinesBrian Walton30 Dec 2017, 16:237523g41075
Re: Polar Grid AirNav and Oceanic AirNavAntoine Couëtte30 Dec 2017, 09:5118357g41074
Re: Polar Grid AirNav and Oceanic AirNavGary LaPook30 Dec 2017, 03:281812g41073
Re: Polar Grid AirNav and Oceanic AirNavGary LaPook30 Dec 2017, 03:267189g41072
Re: Latitude by two stars ...on a Party BoatGreg Rudzinski30 Dec 2017, 01:1012120g41071
Re: First Moon-Star LunarSean C29 Dec 2017, 21:175878g41070
AP1234 - 1941 EditionDavid Pike29 Dec 2017, 18:1513028g41069
Re: Polar Grid AirNav and Oceanic AirNavJohn D. Howard29 Dec 2017, 16:383076g41068
Re: First Moon-Star LunarEd Popko29 Dec 2017, 16:201379g41067
Re: Polar Grid AirNav and Oceanic AirNavEd Popko29 Dec 2017, 13:341727g41066
Re: First Moon-Star LunarSean C29 Dec 2017, 08:321641g41065
Polar Grid AirNav and Oceanic AirNavAntoine Couëtte29 Dec 2017, 00:4225712g41064
Re: Latitude by two stars observed simultaneouslyDavid Pike28 Dec 2017, 19:496953g41063
Re: First Moon-Star LunarEd Popko28 Dec 2017, 18:142462g41062
Re: Problem with radio 'atomic' clock --detected by LunarFrank Reed28 Dec 2017, 18:083173g41061
Re: Unwarranted levels of precisionFrank Reed28 Dec 2017, 17:546132g41060
Re: Latitude by two stars ...on a Party BoatGreg Rudzinski28 Dec 2017, 16:492120g41059
Problem with radio 'atomic' clock --detected by LunarGeoffrey Kolbe28 Dec 2017, 13:114442g41058
Re: History of Air NavigationDavid Pike28 Dec 2017, 11:446614g41057
Re: First Moon-Star LunarSean C28 Dec 2017, 11:264689g41056
Re: History of Air NavigationWolfgang Köberer28 Dec 2017, 08:273287g41055
Re: Heading/Speed Acceleration Error CardGary LaPook28 Dec 2017, 06:262063g41054
Re: A noon fix inland with an peri-sextantPaul Dolkas28 Dec 2017, 06:2628163g41053
The Moon, the Universe, Betelgeuse, and IrelandFrank Reed28 Dec 2017, 03:196619g41052
Re: First Moon-Star LunarFrank Reed28 Dec 2017, 00:2215760g41051
Re: A Lunar Example: Sun and Moon vertically alignedPaul Hirose27 Dec 2017, 22:005718g41050
Re: Coriolis Acceleration -- A general caseAntoine Couëtte27 Dec 2017, 21:542688g41049
Re: Solstice Sun LinesAntoine Couëtte27 Dec 2017, 19:498011g41048
History of Air NavigationFrank Reed27 Dec 2017, 19:356793g41047
Latitude by two stars ...on a Party BoatFrank Reed27 Dec 2017, 19:0510670g41046
Re: First Moon-Star LunarAntoine Couëtte27 Dec 2017, 18:5212182g41045
Re: Cotter's "History of Nautical Astronomy" on ebayBruce J. Pennino27 Dec 2017, 18:035799g41044
Heading/Speed Acceleration Error CardDavid Pike27 Dec 2017, 18:035972g41043
Re: Solstice Sun LinesBruce J. Pennino27 Dec 2017, 14:3712822g41042
Re: First Moon-Star Lunar (corrected version)Antoine Couëtte27 Dec 2017, 11:3622903g41041
Re: First Moon-Star LunarEd Popko27 Dec 2017, 11:073588g41040
Re: First Moon-Star LunarEd Popko27 Dec 2017, 10:584897g41039
Coriolis Acceleration – A general caseDavid Pike27 Dec 2017, 10:136029g41038
Re: First Moon-Star LunarAntoine Couëtte27 Dec 2017, 08:4214112g41037
Cotter's "History of Nautical Astronomy" on ebayFrank Reed26 Dec 2017, 20:372550g41036
Re: Solstice Sun LinesDavid Pike26 Dec 2017, 17:443943g41035
Re: First Moon-Star LunarAntoine Couëtte26 Dec 2017, 15:4513139g41034
Re: Solstice Sun LinesAntoine Couëtte26 Dec 2017, 14:344171g41033
Publishing Heights valuesAntoine Couëtte26 Dec 2017, 12:3614671g41032
Re: Weems Star Altitude CurvesGary LaPook26 Dec 2017, 09:321566g41031
Regulations for examining masters and mates 1845David C26 Dec 2017, 07:1818855g41030
Re: GPS Anti Spoof appGreg Rudzinski26 Dec 2017, 07:141969g41029
Re: Solstice Sun LinesTracy Shrier26 Dec 2017, 04:255108g41028
Re: Solstice Sun LinesDavid Pike25 Dec 2017, 23:318988g41027
Re: Solstice Sun LinesAntoine Couëtte25 Dec 2017, 21:418516g41026
Re: The "OTHER" Kamal.Greg Rudzinski25 Dec 2017, 19:265576g41025
Re: Solstice Sun LinesDavid Pike25 Dec 2017, 18:4913027g41024
Re: The "OTHER" Kamal.Brad Morris25 Dec 2017, 17:5316642g41023
Re: C Plath sextant, missing partPeter Van Dine25 Dec 2017, 16:236084g41022
Re: C Plath sextant, missing partPeter Van Dine25 Dec 2017, 16:2010598g41021
The "OTHER" Kamal.Herman Dekker25 Dec 2017, 16:1011678g41020
Re: Solstice Sun LinesAntoine Couëtte25 Dec 2017, 11:139315g41019
Re: Unwarranted levels of precisionMark Knudsen24 Dec 2017, 23:456864g41018
Re: Solstice Sun LinesFrank Reed24 Dec 2017, 17:003538g41017
Re: Solstice Sun LinesDavid Pike24 Dec 2017, 16:386619g41016
Re: Latitude by two stars observed simultaneouslyDavid Pike24 Dec 2017, 15:219540g41015
Re: C Plath sextant, missing partRidge White24 Dec 2017, 14:187764g41014
Re: C Plath sextant, missing partRidge White24 Dec 2017, 14:115035g41013
Re: Unwarranted levels of precisionMichael Arthur24 Dec 2017, 13:333902g41012
First Moon-Star LunarEd Popko24 Dec 2017, 12:444346g41011
Solstice Sun LinesTracy Shrier24 Dec 2017, 04:222808g41010
Re: C Plath sextant, missing partBill Morris24 Dec 2017, 03:082039g41009
Re: C Plath sextant, missing partGreg Rudzinski24 Dec 2017, 01:413076g41008
Re: Latitude by two stars observed simultaneouslyFrank Reed24 Dec 2017, 00:573729g41007
Re: Latitude by two stars observed simultaneouslyPeter Monta24 Dec 2017, 00:204951g41006
C Plath sextant, missing partPeter Van Dine23 Dec 2017, 23:273764g41005
Re: Latitude by two stars observed simultaneouslyFrank Reed23 Dec 2017, 21:183997g41004
Re: A Lunar Example: Sun and Moon vertically alignedSean C23 Dec 2017, 13:474220g41003
Re: Living on the EquatorDon Seltzer23 Dec 2017, 01:064242g41002
Living on the EquatorLu Abel22 Dec 2017, 23:204262g41001
Re: Howland Island landfallDavid C22 Dec 2017, 22:172501g41000
Re: A Lunar Example: Sun and Moon vertically alignedCharles McElhill22 Dec 2017, 21:571652g40999
Re: Latitude by two stars observed simultaneouslyCharles McElhill22 Dec 2017, 21:471673g40998
Re: Latitude by two stars observed simultaneouslyGreg Rudzinski22 Dec 2017, 21:082058g40997
Re: Howland Island landfallDavid C22 Dec 2017, 20:094066g40996
Re: A Lunar Example: Sun and Moon vertically alignedFrank Reed22 Dec 2017, 18:575489g40995
Re: Sextant scope footprintsMark Knudsen22 Dec 2017, 18:528306g40994
Re: A Lunar Example: Sun and Moon vertically alignedEd Popko22 Dec 2017, 18:201712g40993
Re: Latitude by two stars observed simultaneouslyBrad Morris22 Dec 2017, 17:308765g40992
Re: Latitude by two stars observed simultaneouslyFrank Reed22 Dec 2017, 17:0917273g40991
Re: Unwarranted levels of precisionJackson McDonald22 Dec 2017, 11:248555g40990
Re: Howland Island landfallGary LaPook22 Dec 2017, 09:329088g40989
Re: Could I have seen Zubenelgenubi in morning twilight with x10 binoculars?David Pike22 Dec 2017, 09:033674g40988
Re: Latitude by two stars observed simultaneouslyDavid Pike22 Dec 2017, 08:175317g40987
Re: Fascinated by slide rulesAlan S22 Dec 2017, 05:191543g40986
Re: Unwarranted levels of precisionMichael Arthur22 Dec 2017, 00:141990g40985
Re: Sextant scope footprintsGreg Rudzinski22 Dec 2017, 00:045065g40984
Re: Latitude by two stars observed simultaneouslyGary LaPook21 Dec 2017, 23:5214707g40983
Re: Fascinated by slide rulesRommel John Miller21 Dec 2017, 21:136946g40982
Re: Fascinated by slide rulesAlan S21 Dec 2017, 19:153545g40981
Sextant scope footprintsFrank Reed21 Dec 2017, 20:322122g40980
Re: Pub. 249 and the spherical earthBob Goethe21 Dec 2017, 20:301745g40979
Re: Latitude by two stars observed simultaneouslyGary LaPook21 Dec 2017, 20:1711881g40978
Latitude by two stars observed simultaneouslyFrank Reed21 Dec 2017, 17:325567g40977
Re: Could I have seen Zubenelgenubi in morning twilight with x10 binoculars?Antoine Couëtte21 Dec 2017, 13:544162g40976
Re: A noon fix inland with an peri-sextantAntoine Couëtte21 Dec 2017, 13:1833805g40975
Re: A Lunar Example: Sun and Moon vertically alignedEd Popko21 Dec 2017, 11:352789g40974
Howland Island landfallDavid C21 Dec 2017, 04:592862g40973
Re: Pub. 249 and the spherical earthFrank Reed21 Dec 2017, 02:429105g40972
Re: Unwarranted levels of precisionPeter Monta21 Dec 2017, 01:475457g40971
Re: Unwarranted levels of precisionDavid C21 Dec 2017, 01:191740g40970
Re: Unwarranted levels of precisionPaul Hirose21 Dec 2017, 00:443504g40969
Re: Pub. 249 and the spherical earthRoger W. Sinnott21 Dec 2017, 00:296351g40968
Re: Unwarranted levels of precisionDavid Pike20 Dec 2017, 23:002653g40967
Re: Unwarranted levels of precisionPeter Monta20 Dec 2017, 21:594431g40966
Re: Circular "Navigational Computer"Alan S20 Dec 2017, 18:111676g40965
Re: Pub. 249 and the spherical earthFrank Reed20 Dec 2017, 17:233514g40964
Re: Pub. 249 and the spherical earthGreg Rudzinski20 Dec 2017, 17:151796g40963
Re: Pub. 249 and the spherical earthFrank Reed20 Dec 2017, 17:0714250g40962
Re: Pub. 249 and the spherical earthStan K20 Dec 2017, 16:233832g40961
Re: Unwarranted levels of precisionGary LaPook20 Dec 2017, 16:2015301g40960
Re: Unwarranted levels of precisionRobert VanderPol II20 Dec 2017, 14:013867g40959
Pub. 249 and the spherical earthBob Goethe20 Dec 2017, 12:401427g40958
Re: Unwarranted levels of precisionDavid Pike20 Dec 2017, 09:064725g40957
Re: Unwarranted levels of precisionGary LaPook20 Dec 2017, 06:153694g40956
Re: Unwarranted levels of precisionDavid C20 Dec 2017, 04:591408g40955
Re: A noon fix inland with an peri-sextantGary LaPook20 Dec 2017, 02:261643g40954
Re: Unwarranted levels of precisionGary LaPook20 Dec 2017, 02:041474g40953
Re: A noon fix inland with an peri-sextantDavid Pike19 Dec 2017, 23:433374g40952
Unwarranted levels of precisionGary LaPook19 Dec 2017, 23:223506g40951
Re: A noon fix inland with an peri-sextantFrank Reed19 Dec 2017, 22:133596g40950
Re: An explanation of CalendarsAndrew Nikitin19 Dec 2017, 21:1720529g40949
Re: A Lunar Example: Sun and Moon vertically alignedEd Popko19 Dec 2017, 18:292359g40948
Re: Planet positions and light travel timeFrank Reed19 Dec 2017, 17:175841g40947
Re: Planet positions and light travel timeAntoine Couëtte19 Dec 2017, 13:193627g40946
An explanation of CalendarsBob Crawley19 Dec 2017, 09:051401g40945
Re: A noon fix inland with an peri-sextantPaul Dolkas19 Dec 2017, 00:0917305g40944
A Lunar Example: Sun and Moon vertically alignedFrank Reed18 Dec 2017, 23:5314258g40943
Re: Planet positions and light travel timePaul Hirose18 Dec 2017, 21:254536g40942
A noon fix inland with an peri-sextantDavid Pike18 Dec 2017, 19:569367g40941
Re: Persistence and demise of LunarsBruce Cutting18 Dec 2017, 19:383529g40940
Re: Hello from a New MemberGary LaPook18 Dec 2017, 17:422461g40939
Re: Hello from a New MemberEd Popko18 Dec 2017, 13:541871g40938
Re: Planet positions and light travel timeDon Seltzer18 Dec 2017, 16:133793g40937
Re: Planet positions and light travel timeDave Walden18 Dec 2017, 14:398455g40936
Re: Planet positions and light travel timeDavid Pike18 Dec 2017, 08:121586g40935
Re: Could I have seen Zubenelgenubi in morning twilight with x10 binoculars?David Pike18 Dec 2017, 08:064615g40934
Re: Interesting Street SignGary LaPook18 Dec 2017, 03:376562g40933
Re: Planet positions and light travel timeRobert Bernecky17 Dec 2017, 23:381678g40932
Re: Planet positions and light travel timeFrank Reed17 Dec 2017, 23:286052g40931
Re: Planet positions and light travel timeDave Walden17 Dec 2017, 23:082603g40930
Re: Planet positions and light travel timeMike Mayer17 Dec 2017, 22:526776g40929
Re: Planet positions and light travel timeGreg Rudzinski17 Dec 2017, 22:422005g40928
Planet positions and light travel timeDavid Pike17 Dec 2017, 21:082014g40927
Re: Could I have seen Zubenelgenubi in morning twilight with x10 binoculars?David Pike17 Dec 2017, 20:574188g40926
Re: Hello from a New MemberJohn D. Howard17 Dec 2017, 20:262100g40925
Re: Could I have seen Zubenelgenubi in morning twilight with x10 binoculars?Greg Rudzinski17 Dec 2017, 16:516305g40924
Re: Could I have seen Zubenelgenubi in morning twilight with x10 binoculars?Greg Rudzinski17 Dec 2017, 15:442669g40923
Re: Elephant Island - Proposed Relief ExpeditionDavid C17 Dec 2017, 07:151543g40922
Interesting Street SignDavid C17 Dec 2017, 07:062057g40921
Elephant Island - Proposed Relief ExpeditionDavid C17 Dec 2017, 06:583538g40920
Hello from a New MemberWilliam Hood17 Dec 2017, 05:081280g40919
Re: I.T.M.A or 'if the cap fits'David C17 Dec 2017, 02:562520g40918
Re: I.T.M.A or 'if the cap fits'David C17 Dec 2017, 02:013164g40917
I.T.M.A or 'if the cap fits'David Pike16 Dec 2017, 22:318226g40916
Re: Could I have seen Zubenelgenubi in morning twilight with x10 binoculars?Stan K16 Dec 2017, 22:266723g40915
Re: Could I have seen Zubenelgenubi in morning twilight with x10 binoculars?Frank Reed16 Dec 2017, 20:522604g40914
Re: Could I have seen Zubenelgenubi in morning twilight with x10 binoculars?David Pike16 Dec 2017, 20:294557g40913
Re: Could I have seen Zubenelgenubi in morning twilight with x10 binoculars?Greg Rudzinski16 Dec 2017, 19:322009g40912
Re: Pub. 249 and Pub. 229Gary LaPook16 Dec 2017, 18:428670g40911
Re: Persistence and demise of LunarsEd Popko16 Dec 2017, 13:062973g40910
Could I have seen Zubenelgenubi in morning twilight with x10 binoculars?David Pike16 Dec 2017, 08:426611g40909
Re: Persistence and demise of LunarsKen Gebhart16 Dec 2017, 05:0010686g40908
Pub. 249 and Pub. 229Bob Goethe16 Dec 2017, 02:402492g40907
Re: Slide rule identificationAlan S16 Dec 2017, 01:021446g40906
Re: Which eye to use with the kamal?Greg Rudzinski15 Dec 2017, 23:091979g40905
Re: Slide rule identificationRoger W. Sinnott15 Dec 2017, 22:409364g40904
Re: Which eye to use with the kamal?Bob Goethe15 Dec 2017, 22:201661g40903
Which eye to use with the kamal?Herman Dekker15 Dec 2017, 20:401974g40902
Air navigation near the magnetic poleFrank Reed15 Dec 2017, 20:092031g40901
Re: Persistence and demise of LunarsFrank Reed15 Dec 2017, 18:135091g40900
Re: Persistence and demise of LunarsRon Jones15 Dec 2017, 04:5024982g40899
Re: Persistence and demise of LunarsFrank Reed15 Dec 2017, 02:3711637g40898
Re: Persistence and demise of LunarsFrank Reed15 Dec 2017, 01:5210702g40897
Re: Bygrave sight reduction by slide ruleGreg Rudzinski14 Dec 2017, 19:081996g40896
Bygrave sight reduction by slide rulePaul Hirose13 Dec 2017, 22:286721g40895
Re: Going Loony with LunarsStan K13 Dec 2017, 01:015304g40894
Re: Tape Measure KamalRoger W. Sinnott13 Dec 2017, 00:57900392g40893
Re: Going Loony with LunarsEd Popko12 Dec 2017, 23:172411g40892
Tape Measure KamalGreg Rudzinski12 Dec 2017, 21:174094g40891
Re: Going Loony with LunarsFrank Reed12 Dec 2017, 21:102719g40890
Re: Going Loony with LunarsEd Popko12 Dec 2017, 21:033633g40889
Re: Going Loony with LunarsFrank Reed12 Dec 2017, 20:3214258g40888
Re: Slide rule identificationAlan S12 Dec 2017, 19:121382g40887
Re: Slide rule identificationEd Popko12 Dec 2017, 17:312329g40886
Re: Persistence and demise of LunarsRoger W. Sinnott12 Dec 2017, 11:527904g40885
Re: Slide rule identificationRonald van Riet12 Dec 2017, 09:182385g40884
Re: Persistence and demise of LunarsSean C12 Dec 2017, 05:444515g40883
Slide rule identificationAlan S12 Dec 2017, 04:053117g40882
Re: Persistence and demise of LunarsDon Seltzer11 Dec 2017, 22:565667g40881
Re: Pub. 249 questionStan K11 Dec 2017, 21:2314457g40880
Re: Persistence and demise of LunarsRoger W. Sinnott11 Dec 2017, 19:417096g40879
Re: Persistence and demise of LunarsBruce Cutting11 Dec 2017, 18:104972g40878
Re: Persistence and demise of LunarsDon Seltzer11 Dec 2017, 14:584041g40877
Re: Great Circle Initial Course Boston to Wellington?Sean C11 Dec 2017, 09:452757g40876
Re: Great Circle Initial Course Boston to Wellington?Sean C11 Dec 2017, 06:247702g40875
Re: Pub. 249 questionFrank Reed11 Dec 2017, 02:0610796g40874
Re: Persistence and demise of LunarsGreg Rudzinski11 Dec 2017, 00:252556g40873
Re: Persistence and demise of LunarsBob Goethe10 Dec 2017, 23:192617g40872
Re: Persistence and demise of LunarsRoger W. Sinnott10 Dec 2017, 21:507138g40871
Re: Who is this man with a pipe?Hewitt Schlereth10 Dec 2017, 21:324684g40870
Re: Pub 229Gary LaPook10 Dec 2017, 19:253121g40869
Re: Persistence and demise of LunarsWolfgang Köberer10 Dec 2017, 19:012389g40868
Re: Pub 229Robert Bernecky10 Dec 2017, 15:074570g40867
Re: Pub 229Gary LaPook10 Dec 2017, 10:432152g40866
Re: Pub 229Herman Dekker10 Dec 2017, 07:422505g40865
Re: Pub 229Gary LaPook10 Dec 2017, 02:352656g40864
Re: Who is this man with a pipe?Dave Walden10 Dec 2017, 02:051545g40863
Re: Pub 229Gary LaPook10 Dec 2017, 00:291660g40862
Re: Pub 229Chris Caswell9 Dec 2017, 22:201491g40861
Re: Pub 229Chris Caswell9 Dec 2017, 22:171827g40860
Re: Longitude by asteroidDave Walden9 Dec 2017, 16:121668g40859
Re: Pub 229David Pike9 Dec 2017, 09:246557g40858
Re: Longitude by asteroidPeter Monta9 Dec 2017, 08:02206997g40857
Re: Pub 229Gary LaPook9 Dec 2017, 06:441818g40856
Re: Pub 229Stan K9 Dec 2017, 03:404371g40855
Re: Pub 229Gary LaPook9 Dec 2017, 02:351916g40854
Re: Pub 229Gary LaPook9 Dec 2017, 02:254523g40853
Paper Wallet Kamal ProjectGreg Rudzinski9 Dec 2017, 00:561984g40852
Re: Pub 229Chris Caswell9 Dec 2017, 00:211636g40851
Re: Pub 229Chris Caswell9 Dec 2017, 00:181809g40850
Re: Project Vanguard and GPSGreg Rudzinski9 Dec 2017, 00:172271g40849
Re: Pub 229Chris Caswell9 Dec 2017, 00:161495g40848
Project Vanguard and GPSRichard Easton8 Dec 2017, 22:581812g40847
Re: Great Circle Initial Course Boston to Wellington?Sean C8 Dec 2017, 11:381666g40846
Re: Great Circle Initial Course Boston to Wellington?David C8 Dec 2017, 08:332302g40845
Re: Pub 229Ron Jones8 Dec 2017, 05:581889g40844
Re: Pub 229Ron Jones8 Dec 2017, 05:472560g40843
Re: Pub 229Stan K8 Dec 2017, 02:24224690g40842
Re: Persistence and demise of LunarsFrank Reed8 Dec 2017, 00:178677g40841
Re: Pub 229Greg Rudzinski7 Dec 2017, 23:376209g40840
Re: Tamaya Regulus II sextantRon DiGiovanni7 Dec 2017, 20:391547g40839
Re: Pub 229Frank Reed7 Dec 2017, 23:197358g40838
Re: Pub 229Chris Caswell7 Dec 2017, 22:122219g40837
Re: Longitude by asteroidEd Popko7 Dec 2017, 21:252740g40836
Longitude by asteroidFrank Reed7 Dec 2017, 19:357834g40835
Re: Persistence and demise of LunarsRobin Stuart7 Dec 2017, 19:1547492g40834
Re: Who is this man with a pipe?David C7 Dec 2017, 02:051662g40833
Re: Who is this man with a pipe?Frank Reed6 Dec 2017, 23:062472g40832
Re: Who is this man with a pipe?Bob Goethe6 Dec 2017, 22:532269g40831
Who is this man with a pipe?Dave Walden6 Dec 2017, 22:191484g40830
Re: Persistence and demise of LunarsD Maracle6 Dec 2017, 15:231462g40829
Re: Persistence and demise of LunarsRobin Stuart6 Dec 2017, 14:4846830g40828
Re: Persistence and demise of LunarsDavid C5 Dec 2017, 22:412651g40827
Re: Persistence and demise of LunarsDavid C5 Dec 2017, 22:351744g40826
Re: Persistence and demise of LunarsFrank Reed5 Dec 2017, 21:127087g40825
Re: Great Circle Initial Course Boston to Wellington?Stan K5 Dec 2017, 19:385967g40824
Re: Persistence and demise of LunarsRobin Stuart5 Dec 2017, 19:352541g40823
Re: Pub 229Robert Bernecky5 Dec 2017, 19:192963g40822
Re: Great Circle Initial Course Boston to Wellington?Stan K5 Dec 2017, 17:3712195g40821
Persistence and demise of LunarsRobin Stuart5 Dec 2017, 16:562910g40820
Re: GPS Anti Spoof appFrank Reed5 Dec 2017, 16:082373g40819
Re: GPS Anti Spoof appEd Popko5 Dec 2017, 15:461995g40818
Re: Great Circle Initial Course Boston to Wellington?Sean C5 Dec 2017, 15:252007g40817
Re: Pub 229David Pike5 Dec 2017, 08:452853g40816
Re: Great Circle Initial Course Boston to Wellington?Sean C5 Dec 2017, 06:257726g40815
Re: GPS Anti Spoof appDavid C5 Dec 2017, 02:271908g40814
Re: Great Circle Initial Course Boston to Wellington?Stan K5 Dec 2017, 02:08388668g40813
Re: BBC Puzzle for todayStan K5 Dec 2017, 01:338664g40812
Re: BBC Puzzle for todayStan K4 Dec 2017, 23:415739g40811
Re: Pub 229Frank Reed4 Dec 2017, 23:403816g40810
Re: Pub 229Chris Caswell4 Dec 2017, 22:421865g40809
Re: BBC Puzzle for todayAndrew Nikitin4 Dec 2017, 19:181879g40808
Re: GPS Anti Spoof appDave Walden4 Dec 2017, 18:411561g40807
Re: Pub 229Sean C4 Dec 2017, 18:342082g40806
Re: GPS Anti Spoof appPeter Dijkstra4 Dec 2017, 17:588871g40805
Re: GPS Anti Spoof appFrank Reed4 Dec 2017, 17:466688g40804
Re: GPS Anti Spoof appJackson McDonald4 Dec 2017, 17:2714925g40803
Re: BBC Puzzle for todayFrank Reed4 Dec 2017, 17:203214g40802
Re: GPS Anti Spoof appFrank Reed4 Dec 2017, 17:025514g40801
Re: Pub 229Greg Rudzinski4 Dec 2017, 16:3815185g40800
Re: Pub 229Dave Walden4 Dec 2017, 15:551407g40799
Re: Pub 229Sean C4 Dec 2017, 11:369694g40798
Re: Great Circle Initial Course Boston to Wellington?Peter Hakel4 Dec 2017, 03:462540g40797
Re: Pub 229Greg Rudzinski4 Dec 2017, 02:263998g40796
Re: Pub 229Alan S4 Dec 2017, 00:551499g40795
Re: Pub 229Greg Rudzinski3 Dec 2017, 23:082032g40794
Re: GPS Anti Spoof appJackson McDonald3 Dec 2017, 22:4819902g40793
Pub 229Chris Caswell3 Dec 2017, 22:252413g40792
Re: GPS Anti Spoof appAlan S3 Dec 2017, 22:051494g40791
Re: GPS Anti Spoof appHewitt Schlereth3 Dec 2017, 20:519427g40790
Re: Great Circle Initial Course Boston to Wellington?Frank Reed3 Dec 2017, 16:134074g40789
Re: BBC Puzzle for todayAndrew Nikitin3 Dec 2017, 16:032685g40788
Re: GPS Anti Spoof appGreg Rudzinski3 Dec 2017, 15:471551g40787
Re: Great Circle Initial Course Boston to Wellington?Bob Goethe3 Dec 2017, 15:451573g40786
GPS Anti Spoof appFrank Reed3 Dec 2017, 15:285893g40785
Re: Great Circle Initial Course Boston to Wellington?Frank Reed3 Dec 2017, 15:043957g40784
Re: Great Circle Initial Course Boston to Wellington?David Pike3 Dec 2017, 14:213766g40783
Re: Great Circle Initial Course Boston to Wellington?Noell Wilson3 Dec 2017, 04:421550g40782
Re: Great Circle Initial Course Boston to Wellington?Noell Wilson3 Dec 2017, 04:303548g40781
Re: WSJ If GPS FailedCharles McElhill3 Dec 2017, 02:281433g40780
Re: Great Circle Initial Course Boston to Wellington?Greg Rudzinski3 Dec 2017, 00:201697g40779
Re: Great Circle Initial Course Boston to Wellington?David C2 Dec 2017, 21:553140g40778
Re: Great Circle Initial Course Boston to Wellington?Bruce J. Pennino2 Dec 2017, 19:254588g40777
Re: Great Circle Initial Course Boston to Wellington?Frank Reed2 Dec 2017, 17:554904g40776
Re: Great Circle Initial Course Boston to Wellington?Ron Jones2 Dec 2017, 17:221571g40775
Re: Great Circle Initial Course Boston to Wellington?Frank Reed2 Dec 2017, 16:244926g40774
Re: Great Circle Initial Course Boston to Wellington?Sean C2 Dec 2017, 10:254639g40773
Re: Great Circle Initial Course Boston to Wellington?Greg Rudzinski2 Dec 2017, 04:511914g40772
Re: Calibrating a KamalBrad Morris2 Dec 2017, 03:51139467g40771
Re: Great Circle Initial Course Boston to Wellington?David C2 Dec 2017, 02:252275g40770
Lunar lunacyJackson McDonald2 Dec 2017, 02:105021g40769
Re: Great Circle Initial Course Boston to Wellington?David C2 Dec 2017, 01:424331g40768
Re: Great Circle Initial Course Boston to Wellington?Greg Rudzinski2 Dec 2017, 00:161523g40767
Re: Great Circle Initial Course Boston to Wellington?Gary LaPook2 Dec 2017, 00:126670g40766
Re: Great Circle Initial Course Boston to Wellington?Sean C1 Dec 2017, 22:572657g40765
Great Circle Initial Course Boston to Wellington?Bruce J. Pennino1 Dec 2017, 22:062589g40764
Re: BBC Puzzle for todayDavid C1 Dec 2017, 19:361906g40763
Re: BBC Puzzle for todayFrank Reed1 Dec 2017, 17:554834g40762
Re: BBC Puzzle for todayPhilip Lange1 Dec 2017, 17:036333g40761
Re: BBC Puzzle for todayGreg Rudzinski1 Dec 2017, 16:282129g40760
Re: Physics Today: Trigonometry for the heavensFrank Reed1 Dec 2017, 16:024241g40759
Physics Today: Trigonometry for the heavensRichard B. Langley1 Dec 2017, 15:342531g40758
Re: Loran and other alternatives to GPSRobert Wyatt1 Dec 2017, 15:1813734g40757
Re: Calibrating a KamalÖrjan Sandström1 Dec 2017, 14:341868g40756
Re: Loran and other alternatives to GPSRobert VanderPol II1 Dec 2017, 14:224923g40755
BBC Puzzle for todayBob Crawley1 Dec 2017, 07:226736g40754
Re: The trig scales on K & E 4070-3 and 4080-3Frank Reed1 Dec 2017, 01:502076g40753
Re: Loran and other alternatives to GPSNoell Wilson1 Dec 2017, 00:352530g40752

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