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?

Question

You want to make good a true course of 137&deg;. A north-northeast wind produces a 3&deg; leeway. The variation is 11&deg; west, deviation is 5&deg; east, and gyrocompass error is 2&deg; east. What course must you steer per gyrocompass to make the true course good?

Accepted Answer

Option A: 132&deg;pgc. Applying the navigational formula for course conversion from true to gyro, accounting for a north-northeast wind leeway (3° to port) and compass errors (11°W var, 5°E dev, 2°E gyro), mandates steering 132°pgc.

You want to make good a true course of 137&deg;. A north-northeast wind produces a 3&deg; leeway. The variation is 11&deg; west, deviation is 5&deg; east, and gyrocompass error is 2&deg; east. What course must you steer per gyrocompass to make the true course good?

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?