Tune

To adjust the tension and alignment of the standing rigging so the mast stands straight and the sails set correctly.

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Related T-terms

Throwbag / Throw line

A buoyant floating line packed in a sock and thrown to a person in the water as a recovery…

Trimaran

A three-hulled vessel: a central hull (vaka) flanked by two amas.

Tiller

A horizontal handle (or extension) fixed to the rudder stock, used to steer a smaller yach…

Transom

The flat — or nearly flat — after face of the stern.

Through-hull

A fitting that passes through the hull to admit or discharge water (for engine cooling, he…

Trim

To adjust a sail's controls to produce optimum drive and lift.

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