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Mariners Learning Practice Test

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If a sailing vessel with the wind on the port side sees a sailing vessel to windward and cannot tell whether the other vessel has the wind on port or starboard side, she shall...
Correct Answer:
Keep out of the way of the other vessel
Explanation:
When two sailing vessels are in proximity and you can’t determine which vessel has the wind on which side, the safe course is to keep out of the way of the other vessel. The reason is that the rules require the vessel on port tack to yield to a vessel on starboard tack, but if you can’t tell the other vessel’s wind side, you can’t be sure who has the right of way. By keeping out of the way, you avoid a potential collision and allow the other vessel to maneuver if necessary. Actions like turning abruptly, speeding up, or stopping do not address the uncertainty and can create additional risk, whereas easing off or altering course to pass well clear fulfills the obligation to take early and substantial action to prevent a collision.

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