You desire to make good a true course of 007°. The variation is 5°E, magnetic compass deviation is 3°W, and gyrocompass error is 2°E. A southwest by west wind produces a 2° leeway. What is the course to steer per standard magnetic compass to make the true course good?
Official USCG Answer & Rule Citation
Correct Answer: Option A — 003°psc
Leeway pushes the vessel downwind. A SW by W wind pushes the vessel toward the NE (045°). To counter a 2° leeway, steer 2° to the left of the desired track. Applying Can-Dead-Men-Vote-Twice (CDMVT) in reverse, the final magnetic compass course is 003°psc.
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