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- Q135 - Navigation Problems: Oceans
302. On 27 June your 1905 ZT DR position is LAT 24° 35.0' N, LONG 50° 15.0' W. At that time, you observe Saturn bearing 211° pgc. The chronometer reads 10h 04m 26s and the chronometer error is 01m 20s slow. The variation is 4.5° E. What is the gyro error?
The gyro error is 1.1 W because the observed gyro bearing (211 pgc) is slightly greater than the computed true bearing (approximately 210 T), indicating a westerly error.
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