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USCG Exam PracticePlotting with variation and deviation (T-V-M-D-C)

A vessel's compass course is 355°C, deviation is 4°E, and variation is 12°W. What is the true course?

  1. ✓ 347°TCorrect
  2. B. 363°T
  3. C. 339°T
  4. D. 351°T

Why A is correct

Correcting compass to true: add easterly, subtract westerly. 355° + 4°E deviation = 359° magnetic; 359° − 12°W variation = 347°T.

Cited:Bowditch Ch. 6 §602

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A vessel's compass course is 355°C, deviation is 4°E, and variation… — USCG Exam Practice · CaptainsGround