Shore power

120/230 V AC supplied from a marina pedestal through a dedicated inlet and cable, used to run onboard AC appliances and to drive the battery charger while alongside.

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Related S-terms

Scupper

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

Skeg

A fixed vertical fin ahead of the rudder, protecting and supporting it.

Stern

The aft end of the vessel.

Sea breeze

A daytime onshore wind caused by the land heating faster than the sea, drawing cool air in…

Seacock

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

Stanchions

Vertical metal posts bolted to the deck edge that support the lifelines.

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