[Coffin, John Huntington Crane], 1815-1890. [from old catalog] · New York, D. Van Nostrand · leaf 55
e length on the globe of the great circle A C B is lessthan that of the rhumb-line A B, or of any other line, asA D B, between the two. But A C B is also less than linesthat may be drawn from A to B onthe other side of it, that is, nearerthe pole ; and there will be someline, as A D B, nearer the… … Fig, n. SHAPING THE COURSE. 49 ing on the great circle, a course as near it as practicableshould be selected. If she cannot sail between A B andA C, there is the choice of sailing nearer the equator thanA B, or nearer the pole than A C. The ship may be near-fing the place B better by the second…
Navigation · Nautical astronomy
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