RULE 10

On Opposite Tacks

When boats are on opposite tacks, the port-tack boat keeps clear of the starboard-tack boat.

The most fundamental right-of-way rule. The starboard-tack boat (wind over its right side) holds its course; the port-tack boat must keep clear, typically by bearing away to pass behind the starboard boat's stern, or by tacking onto starboard.

Opens the animation on the boat-length grid — scrub it, edit it, or use it as a starting point. Free, no account needed.

upwindopposite-tacksstarboardportright-of-way

How it interacts with other rules

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