The American practical navigator : being an epitome of navigation and nautical astronomy (1888)
Bowditch, Nathaniel, 1773-1838, United States. Navy Dept. Bureau of Navigation, Cooper, Philip Henry, 1844-1912 · Washington : Govt. Print. Off. · leaf 95
F are near each other and the twocircles nearly coincide. Art. 151. 5. By Soundings.—Under some circumstances, where the depth of water is not great and varies gradually with the distance from the land, the ships position may be approximately determined by soundings. Art. 15S. 6.… … SHAPING THE COURSE. Art. 153. Having taken the departure, the course must then be shaped, and from that moment the run bylog must be determined. Having decided upon the track, whether by rhumb or by great circle, the true or themagnetic course may be taken from the chart; if the latter, allowance…
Navigation · Nautical astronomy
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