Celestial Navigation for Yachtsmen
By Mary Blewitt
13th Edition 2016
Celstial Navigation is explained in a clear and concise style. Today,there is still a vital need for traditional skills when things go wrong: batteries can fail, aerials go overboard, and electronics have been known to get wet. Celestial Navigation for Yachtsmen is a model of simplicity and clarity. The worked examples require only straightforward addition and subtraction.
Pb. 80pp 216x138mm 38 b/w drawings