American practical navigator: an epitome of navigation and nautical astronomy (1914)
Bowditch, Nathaniel, 1773-1838, United States. Navy Dept. Bureau of Equipment, Logan, George Wood, 1868-1915 · Washington, Govt. Print. Off. · leaf 68
ship at the first bearing and P at the second. For any other positions OP,OT, the condition is not^fulfilled. 149. Another graphic solution is given by the Mooring and Maneuvering Boardand the various modifications of it that are in use among navigators. 150. The method of obtaining position by two… … Fig. 19. 62 PILOTING. miss the opportunity for a bow and beam bearing in passing a lighthouse or otherwell-plotted object; it involves little or no trouble, and always gives a feeling ofadded security, however little the position may be in doubt. If about to pass anobject abreast of which there is…
Navigation · Nautical astronomy
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