vang(redirected from boom vangs)
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1. A set of tackle running from the base of a sailboat's mast to a point partway out on the boom, used to control the curvature of the sail.
2. A rope running from the peak of a gaff to a ship's rail or mast, used to steady the gaff.
1. (Nautical Terms) a rope or tackle extended from the boom of a fore-and-aft mainsail to a deck fitting of a vessel when running, in order to keep the boom from riding up
2. (Nautical Terms) a guy extending from the end of a gaff to the vessel's rail on each side, used for steadying the gaff
[C18: from Dutch, from vangen to catch]
a rope extending from the peak of a gaff to the ship's rail or to a mast, used to steady the gaff.
[1760–70; < Dutch: device for securing something; compare vanglijn bow rope =vang + lijn line]