Deck Navigation (Supplementary) USCG Question #945 (Set 3)

You are underway on course 050°T and your maximum speed is 12 knots. The eye of a hurricane bears 120°T, 110 miles from your position. The hurricane is moving towards 285°T at 25 knots. If you maneuver at 12 knots to avoid the hurricane, what could be the maximum CPA?

Official USCG Answer & Rule Citation

Correct Answer: Option A — 77 miles

In USCG General Navigation principles (Bowditch, Light Lists, and Coast Pilots), regarding 'You are underway on course 050°T and your maximum speed is 12 knots. The eye of a hurricane bears 120°T, 110 miles from your position. The hurricane is moving towards 285°T at 25 knots. If you maneuver at 12 knots to avoid the hurricane, what could be the maximum CPA', the verified fact is: '77 miles'.

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