Two yachts on the same tack are converging. Which must keep clear?
Seen from above, north at the top, wind from the north. B is a sailing yacht with her boom out to starboard, upper left of the picture, heading east. A is a sailing yacht with her boom out to starboard, lower left of the picture, heading east.
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Yacht B, the windward boat. On the same tack, the windward boat keeps clear of the leeward boat. B is upwind (nearer the wind), so she gives way.
