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. What course should you steer at 12 knots to have the maximum CPA?
Official USCG Answer & Rule Citation
Correct Answer: Option C — 346°
Applying Bowditch vector triangle principles for storm avoidance, plotting the relative movement of the hurricane's eye against own ship's maximum speed triangle determines the reciprocal vector that maximizes Closest Point of Approach. Steering 346°T establishes the optimum intercept angle away from the storm track.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.