Wentworth, G. A. (George Albert), 1835-1906 · Boston, Ginn & company · leaf 316
he great circle, marking these pointson Mercators chart, and tracing the curve through them. GREAT CIRCLE SAILING. 53 Example 1. Required the initial courses, the distance, andthe latitude and longitude of the vertex of the great circletrack joining Cand 0. Given: Lat.ofC = 54°18N.Lat.of C =… … Fig. 19. tanHO + O0 = cos^c7cVu„] cos h (c + c) tanKQ-0) = s?n^c7c2com,sin I (c -f o) log cos = 9.93420 colog cos = 0.39843 log cot = 9.69425 log tan [10] 30° 4566° 2763° 41 10.02688 Kc + c) £(C+C) = 46°46£(<7-C) = 15°25, .-. C=62°ll,orN. 62°11E.and C = 31° 21, or N. 31° 21 W. To find the…
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