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 691
B two ac-cessible points from whichboth objects are visible.At A observe the anglesPAQ and QAB, and ifA, B, Q, and P are notin the same plane, ob-serve also the angle PAB.\t B observe the anglesPBA and QBA. Meas-ure AB. Then in the tri-angle APB the side AB,the angles PAB and PBAare known; PA can… … TTSEFUT. PROBLEMS. 645 Cruising alongshore, two headlands P and (J were in sight. From A the bearing of P was N. E.; the bearingof Q was E. N. E. Running to B, which was E. by S., lo miles, the bearing of P then was N. by E., and of Q N. E. by N I
Navigation · Nautical astronomy
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