DSC

Digital Selective Calling — a feature of modern VHF and SSB radios that allows a pre-formatted digital distress alert, including the boat's identity and GPS position, to be transmitted at the press of a button.

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Related D-terms

Drogue

A long cone or series of small cones streamed on a bridle from the stern in very heavy wea…

DGPS

Differential GPS — a GPS that uses correction signals from ground or satellite-based refer…

Dhow

A traditional Arabian sailing craft, typically single- or twin-masted and carrying lateen …

De-power

To reduce the drive produced by the sails, by (1) pinching into the wind so the sails luff…

Draft

The vertical distance from the waterline to the deepest part of the keel — the minimum wat…

Dock

A quay, pontoon, or berth where a vessel ties up — and also the act of bringing her alongs…

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