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- Q135 - Navigation Problems: Oceans
140. At 1524 ZT on 14 June, in DR position LAT 30° 51' N, LONG 30° 02' W, you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 103.9° pgc. The variation is 10° W. What is the gyro error?
The observed gyro bearing is less than the true bearing, indicating a 2.0 E gyro error. This calculation uses the body's latitude and declination, and variation is not applied when determining gyro error.
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