Navigation Problems USCG Question #468 (Set 13)

The true course between two points is 023°T. Your gyrocompass has an error of 1°W and you make an allowance of 4° leeway for an east wind. What gyro course should be steered to make the true course good?

Official USCG Answer & Rule Citation

Correct Answer: Option A — 028°pgc

An east wind pushes the vessel toward the west. To maintain 023°T, steer 4° to the right (027°T). With 1°W gyro error, the gyro course is 027°T plus 1°W error, resulting in 028°pgc. Always apply leeway to the desired track before correcting for gyro error.

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