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- Q127 - Navigation Problems: Oceans
291. On 8 December in DR position LAT 21°56.1'S, LONG 17°21.6'E you observe an amplitude of the Sun. The Sun's center is on the celestial horizon and bears 240.5°psc. The chronometer reads 05h 27m 21s and is 00m 47s fast. Variation in the area is 3.3°E. What is the deviation of the standard magnetic compass?
The Sun's true bearing was calculated as 245.3T. Applying the easterly variation of 3.3E and comparing this to the observed compass bearing of 240.5psc yields a compass deviation of 1.5E.
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