Your vessel is steering a course of 337°psc. Variation for the area is 13°W, and deviation is 4°E. The wind is from the south, producing a 3° leeway. Which true course are you making good?

Correct Answer: Option A — 331°T

Compass 337° + Deviation 4°E = Magnetic 341°. Magnetic 341° + Variation 13°W = True 328°. Wind from the south pushes the vessel to the north, adding 3° to the course. 328° + 3° = 331°T. This follows standard dead reckoning procedures for calculating course made good.