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- Q127 - Navigation Problems: Oceans
270. On 5 February your 2320 ZT position is LAT 52° 28' N, LONG 23° 48' W. You observe Polaris bearing 000.2° pgc. At the time of the observation the helmsman noted that he was heading 224° pgc and 244° psc. The variation is 20° W. What is the deviation for that heading?
The deviation is 1.5 W because the Polaris observation indicates a gyro error of 1.5 W, which equals the deviation on the specified heading when variation is considered.
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