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- Q135 - Navigation Problems: Oceans
318. On 28 September in DR position LAT 24°12.0'S, LONG 85°25.0'E, you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 094°psc. The chronometer reads 11h 29m 42s and is 03m 30s slow. Variation in the area is 4°W. What is the deviation of the magnetic compass?
Calculate the true bearing using latitude, declination, and amplitude, then determine the deviation by comparing the magnetic bearing (accounting for variation) with the observed compass bearing.
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