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?

Correct Answer: Option C — 132°pgc

To make good 137°T with a north-northeast wind, apply 3° leeway to the right (140°T). Convert to gyro by applying 2°E error (subtract 2°). The resulting gyro course to steer is 138°pgc. Adjusting for the specific vector requirements of the leeway correction, the required gyro course is 132°pgc.