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Thread / Author | Replies | Views | Rating | Last Post [asc] | ||
assumed longitude
10-06-2023, 05:38 PM
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2 | 1,459 |
10-07-2023, 10:34 PM Last Post: Rumata |
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USCG Crazy Exam question: Sidereal vs Tropical Year
05-02-2023, 05:02 PM
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3 | 2,484 |
05-05-2023, 09:48 PM Last Post: Fred_B |
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How to get LHA and Ap longitude in Eastern longitudes
04-01-2023, 08:57 PM
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15 | 7,694 |
04-29-2023, 11:16 AM Last Post: Fred_B |
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why Astron uses a "decide for yourself" AP longitude
03-30-2023, 08:51 PM
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2 | 1,669 |
03-31-2023, 01:21 AM Last Post: PeterB |
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A Source of Confusion in Selecting an Assumed Position
03-26-2023, 04:24 PM
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8 | 4,971 |
03-30-2023, 12:20 PM Last Post: PeterB |
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Don't lose heart.....
03-30-2023, 01:00 AM
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0 | 950 |
03-30-2023, 01:00 AM Last Post: CelNav57 |
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compass rose revised
01-31-2021, 10:12 AM
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2 | 2,825 |
03-14-2023, 09:35 PM Last Post: PeterB |
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Sextant mirrors re-silvering
01-30-2023, 07:09 PM
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2 | 2,273 |
02-03-2023, 09:49 PM Last Post: PeterB |
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LHA in Eastern longitudes?
11-25-2022, 02:30 PM
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5 | 4,163 |
12-31-2022, 07:39 PM Last Post: PeterB |
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warning - graphic content
02-20-2021, 05:33 AM
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4 | 4,313 |
12-16-2022, 01:45 PM Last Post: Douglas Denny |
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British Mark IXA Bubble Sextant
09-28-2020, 03:54 PM
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2 | 4,245 |
12-16-2022, 12:51 PM Last Post: Douglas Denny |
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re: relative bearings maybe useful formula
08-01-2022, 07:04 PM
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2 | 2,364 |
08-27-2022, 08:08 PM Last Post: Rumata |
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History and use of star finder celestial globes for navigation cf plan models
07-24-2022, 09:54 AM
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0 | 1,171 |
07-24-2022, 09:54 AM Last Post: Pennine_Lad |
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Digital Sextant
04-26-2022, 06:37 PM
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0 | 1,246 |
04-26-2022, 06:37 PM Last Post: PeterB |
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Are Great Circle Tracks Curved ?
04-22-2022, 07:28 PM
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0 | 1,072 |
04-22-2022, 07:28 PM Last Post: PeterB |
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Why Great Circles Are Great
04-14-2022, 09:03 PM
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0 | 4,716 |
04-14-2022, 09:03 PM Last Post: PeterB |
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What Day Is It In Greenwich
04-08-2022, 03:37 PM
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0 | 1,198 |
04-08-2022, 03:37 PM Last Post: PeterB |
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About (Daylight) Time
04-03-2022, 05:08 PM
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0 | 1,117 |
04-03-2022, 05:08 PM Last Post: PeterB |
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Venus in Daylight My First Time
03-21-2022, 05:21 PM
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2 | 2,251 |
03-25-2022, 12:04 PM Last Post: craigsl |
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Sextant - what are these bits for?
01-30-2022, 08:32 PM
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6 | 5,616 |
03-23-2022, 02:26 PM Last Post: PeterB |
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Article about CN vs GPS.
12-14-2021, 01:14 AM
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0 | 1,657 |
12-14-2021, 01:14 AM Last Post: Rumata |
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Sign of the times.
06-24-2021, 12:42 PM
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1 | 1,978 |
11-27-2021, 01:39 AM Last Post: BigBill |
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Old method to find the positions suggested by "Cloudy Weather" Johnson
05-19-2021, 06:13 AM
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0 | 1,596 |
05-19-2021, 06:13 AM Last Post: Rumata |
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THINK ABOUT IT
02-07-2021, 02:40 PM
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12 | 10,185 |
05-16-2021, 03:55 PM Last Post: BigBill |
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Sun gone in hiding
05-14-2021, 11:41 PM
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1 | 1,981 |
05-16-2021, 12:59 AM Last Post: P.Rutherford |
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Star of India navigation
02-18-2021, 05:48 PM
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2 | 3,730 |
02-22-2021, 09:14 PM Last Post: CarlosPindle |
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Fid - dly stixs
02-17-2021, 01:12 PM
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1 | 2,515 |
02-17-2021, 03:45 PM Last Post: Rdutton |
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Curious old navy math techniques.
02-03-2021, 02:48 AM
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11 | 9,400 |
02-13-2021, 05:00 PM Last Post: Rumata |
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NO ATHEISTS IN A STORM
02-11-2021, 06:07 AM
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2 | 3,521 |
02-12-2021, 01:06 AM Last Post: Fred_B |
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Apparent time
02-05-2021, 03:18 AM
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3 | 3,303 |
02-06-2021, 08:41 AM Last Post: pabrides |
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New (to me) Ebbco
09-04-2020, 03:38 PM
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3 | 4,925 |
02-01-2021, 01:56 AM Last Post: jeremyparker |
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diy dividers
01-27-2021, 08:40 AM
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0 | 1,564 |
01-27-2021, 08:40 AM Last Post: pabrides |
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Navigation and other Marine Applications for SRs
01-04-2021, 05:27 AM
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3 | 3,885 |
01-12-2021, 04:08 AM Last Post: pabrides |
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Dead Reckoning
12-29-2020, 06:32 AM
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3 | 3,749 |
01-02-2021, 09:32 PM Last Post: pabrides |
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Haversine
12-27-2020, 01:43 PM
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1 | 3,291 |
12-29-2020, 11:58 AM Last Post: P.Rutherford |
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Frustration
12-27-2020, 10:35 PM
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2 | 2,831 |
12-28-2020, 06:12 PM Last Post: pabrides |
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New member
12-24-2020, 09:12 PM
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9 | 7,618 |
12-27-2020, 03:40 AM Last Post: pabrides |
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Great Voyages
12-26-2020, 04:08 PM
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2 | 2,816 |
12-26-2020, 10:14 PM Last Post: pabrides |
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2017 Bowditch- The American Practical Navigator
08-11-2018, 12:02 AM
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3 | 6,257 |
12-23-2020, 12:02 AM Last Post: c_davidson |
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Celestial Nav problem I can't solve
04-28-2020, 12:47 PM
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12 | 13,602 |
04-30-2020, 09:20 PM Last Post: LouisC |
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1940 book for navy cadets. Good refresher of trig.
12-12-2019, 03:47 AM
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0 | 2,747 |
12-12-2019, 03:47 AM Last Post: Rumata |
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New Almanac format
06-19-2019, 12:45 PM
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0 | 3,347 |
06-19-2019, 12:45 PM Last Post: CelNav57 |
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Bagnold Sun compass- BillOfTheNorth
05-24-2019, 11:34 PM
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1 | 4,106 |
05-25-2019, 03:27 PM Last Post: BigBill |
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Small error in Chapman
03-21-2019, 05:54 AM
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0 | 2,933 |
03-21-2019, 05:54 AM Last Post: Rumata |
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What Time is it?
09-29-2018, 06:07 AM
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15 | 24,930 |
11-04-2018, 12:54 AM Last Post: CelNav57 |
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A good night for Practice..
09-19-2018, 07:34 AM
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2 | 5,884 |
09-23-2018, 12:07 AM Last Post: CarlosPindle |
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Nories tables?
09-07-2018, 10:01 PM
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3 | 6,280 |
09-08-2018, 03:31 PM Last Post: BigBill |
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Index correction
08-20-2018, 03:44 AM
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2 | 5,059 |
08-21-2018, 12:56 AM Last Post: pabrides |
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First time real horizon
07-21-2018, 03:43 PM
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5 | 8,287 |
08-18-2018, 01:18 PM Last Post: BigBill |
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Not a wasted day - I learned something new
08-13-2018, 12:40 PM
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0 | 2,433 |
08-13-2018, 12:40 PM Last Post: pabrides |
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