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 71
C. represent TT«,the Course.Dist. represent TT, the Distance. D. L. represent T;/ = T;/, the Difference of Latitude.Dep. represent T«, in Latitude of T, T«, in Latitude of T, LL, in Middle Latitude, the Departure. D. Lo. represent MM, the Difference of Longitude. L. represent TM, the Latitude of T… … Fig. 30- Let Hence D. L. = L — L.L = L. + D. L. D. Lo. = Lo — Lo.Lo = Lo. + D. Lo. paying attention to the signs or names of Latitudes and Longi-tudes. Art. 111. In Plane Sailing, the curvature of the Earthbeing neglected, the t-iang!e ccMitaining these elements becomesa right-plane triangle, Fig.…
Navigation · Nautical astronomy
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