No power, and batteries used up? This book and an inexpensive Mark 3 sextant lets you carry on. Alternatively, if you want to learn a basic celestial navigation position fix for any reason with minim...
GPS Backup with a Mark 3 Sextant: All Instructions and Tables Included; For Any Ocean, on Any Date; No Background in Celestial Navigation Required.
- 作者： David Burch
- 出版社： Starpath Publications
- 出版日期： 2018-06-06
- ISBN碼： 9780914025603
- 編號： 1001294883154144
$ 900 元
原價 900
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$900