Your vessel is steering course 299°psc, variation for the area is 7°W, and deviation is 4°W. The wind is from the southwest, producing a 3° leeway. What true course are you making good?
Official USCG Answer & Rule Citation
Correct Answer: Option D — 291°T
Compass error is the algebraic sum of variation and deviation (West is minus). Applying variation and deviation to compass course yields magnetic then true course. Leeway from a southwest wind pushes the vessel to starboard, requiring appropriate angular correction.
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