You are underway on course 050°T and your maximum speed is 11 knots. The eye of a hurricane bears 070°T, 80 miles from your position. The hurricane is moving towards 270°T at 19 knots. What course should you steer at 11 knots to have the maximum CPA?
Official USCG Answer & Rule Citation
Correct Answer: Option D — 215°
To maximize CPA, the vessel must steer a course that maximizes the relative motion vector away from the storm's path. Using a relative motion plot, the vessel's course of 215° provides the greatest divergence from the hurricane's track of 270°, effectively increasing the distance at the closest point of approach.
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