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- Master & Chief Mate (Oceans or Near Coastal (Unlimited Tonnage)) »
- Q108 - Navigation Problems: Near Coastal
457. You want to make good a true course of 137°. A north-northeast wind produces a 3° leeway. The variation is 11° west, deviation is 5° east, and gyrocompass error is 2° east. What course must you steer per gyrocompass to make the true course good?
To achieve a true course of 137, compensate for 3 of leeway by steering 3 into the wind, resulting in a true heading of 134. Then, correct for the 2 east gyro error by subtracting it from the true heading, yielding a gyrocompass course of 132.
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