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- Q126 - Navigation Problems: Near Coastal
204. On 6 November your vessel's 0706 zone time DR position is LAT 25° 30.0' N, LONG 85° 35.0' W, when an azimuth of the Sun is observed. The chronometer time of the sight is 01h 03m 30s, and the Sun is bearing 114.0° pgc. The chronometer error is 02m 30s slow, and the variation in the area is 2° W. What is the gyro error?
The true bearing of the Sun, calculated from the sight reduction, was 116T, while the observed gyro bearing was 114.0 pgc. Applying the formula True bearing = Gyro bearing + Gyro error, the gyro error is 2.0 E.
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