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- Q134 - Navigation Problems: Near Coastal
119. At 1444 ZT on 28 July, in DR position LAT 40° 56.8' N, LONG 167° 12.4' E, you observe an amplitude of the Moon. The upper limb of the Moon is on the visible horizon and bears 299.3° psc. The variation is 1° E. What is the deviation?
The deviation is 3.1W. The total compass error is 2.1W, calculated by subtracting the true bearing from the compass bearing. Subtracting the known variation of 1E from the total compass error yields the deviation of 3.1W.
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