Navigation Problems USCG Question #463 (Set 13)

The true course between two points is 041°. Your gyrocompass has an error of 1°W. You make an allowance of 2° leeway for a east-southeast wind. What gyro course should be steered to make the true course good?

Official USCG Answer & Rule Citation

Correct Answer: Option B — 044°pgc

An ESE wind pushes the vessel toward the WNW. To maintain 041°T, steer 2° to the right (043°T). With 1°W gyro error, the gyro course is 043°T plus 1°W error, resulting in 044°pgc. Ensure the gyro error correction follows the 'Error West, Compass Best' rule.

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