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- Q134 - Navigation Problems: Near Coastal
216. On 6 October your 0416 zone time DR position is LAT 25° 16.0' N, LONG 130° 25.0' E. At that time, you observe Mars bearing 083° psc. The chronometer reads 07h 16m 22s, and the chronometer error is 00m 10s fast. The variation is 1.5° E. What is the deviation of the standard compass?
The deviation of the standard compass is 1.2 West. This is determined by performing a sight reduction to obtain the true bearing of Mars, applying the variation, and comparing the result to the observed compass bearing.
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