The track line on the chart is 274°T. Variation is 4°E, and deviation is 2°E. The gyro error is 1.5°E. What course would be steered by gyrocompass to make good the desired course?

Correct Answer: Option D — 272.5°pgc

Convert True course to PGC: 274T - 1.5E (Gyro Error) = 272.5 PGC. Since the question asks for the course to steer by gyrocompass to make good the track line, the gyro error must be applied directly to the true track. The result is 272.5 degrees PGC.