Starboard tack

Sailing with the wind coming over the starboard side; under COLREGs, a starboard-tack sailing vessel normally has right of way over a port-tack vessel.

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Related S-terms

Sheave

The grooved wheel inside a block or at the head of a mast over which a line runs.

Scull

To propel a boat with a single oar worked side-to-side through a notch or rowlock in the t…

Slab reefing

A traditional reefing method (also called jiffy reefing) in which the tack and clew reef c…

Seacock

A through-hull valve that can be opened or closed to admit water to, or prevent water from…

Stem

The forwardmost structural member of the hull — the bow's leading edge.

Scupper

A drain hole or outlet that removes water from the cockpit or deck.

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