A Guide to practical navigation : containing the rules and methods of solving problems in the most practical manner : the simplest and most complete method for finding a ship's position at sea, as well as a thoroughly approved method of finding the latitude and longitude at the same instant of time by double altitudes (1878)
McNevin, Edmund · San Francisco : Bancroft · leaf 62
VAKIATION, DEVIATION AND LEEWAY. The following examples, where the courses steered, and the vari- ation, deviation and leeway to be allowed on each, are given, from thence to find the true courses, will serve to exercise the learner in the foregoing rules. If any corrected course exceed 8 points or… … Ex. 1. Ship' head N. ; variation, 2 points E. ; deviation, 2 points W. ; leeway 1 point starboard tack. Ex. 2. Ship's head S.E.; variation, 1^ point E.; deviation, 1J point E. and 2 points leeway; wind from N.E. Ex. 3. Ship's head N.N.W.; variation, 2 points \V. ; deviation, 1£ point E.; leeway, f…
Navigation · Nautical astronomy
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