USCG Exam PracticePlotting with variation and deviation (T-V-M-D-C)
Your true course is 085°T. Variation is 10°W and deviation is 4°E. What is the compass course to steer?
- A. 079°C
- ✓ 091°CCorrect
- C. 083°C
- D. 099°C
Why B is correct
Using T-V-M-D-C and uncorrecting (true toward compass): subtract easterly and add westerly. 085° + 10°W variation = 095°M; 095° − 4°E deviation = 091°C. (Bowditch Ch. 6 §602)
Cited:Bowditch Ch. 6 §602