General Navigation USCG Question #695 (Set 22)

You are underway on course 050°T and your maximum speed is 10 knots. The eye of a hurricane bears 100°T, 90 miles from your position. The hurricane is moving towards 285°T at 19 knots. Which course should you steer at 10 knots to have the maximum CPA?

Official USCG Answer & Rule Citation

Correct Answer: Option B — 226°

This is a relative motion problem. By plotting the hurricane's vector and your vessel's speed circle, you determine the course that maximizes the distance from the storm's path. Using the maneuvering board, the optimal course to steer to achieve the maximum Closest Point of Approach (CPA) is 226°T.

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