Gennaker

A hybrid between a genoa and a spinnaker — an asymmetric downwind sail flown from a bowsprit or tack line, easier to handle than a symmetric kite.

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Related G-terms

Gaff

On a four-sided fore-and-aft sail, the spar that supports the sail's upper (head) edge.

Give way vessel

Under the COLREGs, the vessel that is required to keep out of the way of another when risk…

Gooseneck

The articulated fitting that joins the forward end of the boom to the mast, allowing the b…

Grab bag

A watertight bag pre-packed with survival essentials (flares, water, food, EPIRB, handheld…

Genoa

A large headsail whose clew overlaps the mast, giving extra upwind drive compared with a w…

GPS

Global Positioning System — the US satellite constellation whose signals let a receiver co…

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