- bulb keel
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Naut.a narrow keel having a swelling weight of lead or iron at the bottom.[1890-95]
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Universalium. 2010.
bulb keel
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bulb-keel — ● bulb keel, bulb keels nom masculin (anglais bulb, oignon, et keel, quille) Quille d un petit voilier, constituée par un aileron métallique mince, qui supporte à sa partie inférieure un saumon de lest de forme allongée … Encyclopédie Universelle
Bulb keel — A bulb keel is a keel, usually made with a high aspect ratio foil, that contains a ballast filled bulb at the bottom, usually teardrop shaped. The purpose of the bulb keel is to place the ballast as low as possible, therefore gaining the maximum… … Wikipedia
bulb keel — Naut. a narrow keel having a swelling weight of lead or iron at the bottom. [1890 95] … Useful english dictionary
bulb-keels — ● bulb keel, bulb keels nom masculin (anglais bulb, oignon, et keel, quille) Quille d un petit voilier, constituée par un aileron métallique mince, qui supporte à sa partie inférieure un saumon de lest de forme allongée … Encyclopédie Universelle
Keel — In boats and ships, keel can refer to either of two parts: a structural element, or a hydrodynamic element. These parts overlap. As the laying down of the keel is the initial step in construction of a ship, the construction is dated from this… … Wikipedia
Bulb (disambiguation) — A bulb is a 3 dimensional shape made by connecting a rod to a sphere.Bulb may mean: * Bulb, a part of a plant. * Light bulb, a source of electric lighting. * Flashbulb, a bright, rapid lightbulb. * Bulb (photography), a shutter setting. * Bulbous … Wikipedia
Winged keel — A winged keel is a sailboat keel, usually of high aspect ratio, that uses a nearly horizontal foil, the wing , at the bottom to provide additional performance. The horizontal foil serves two purposes: it acts as an winglet on the foil,… … Wikipedia
fin keel — noun a metal plate projecting from the keel of a shallow vessel to give it greater lateral stability • Hypernyms: ↑plate • Hyponyms: ↑centerboard, ↑centreboard, ↑drop keel, ↑sliding keel • Part Holonyms: ↑ … Useful english dictionary
Canting keel — A canting keel is a form of sailing ballast, suspended from a rigid canting strut beneath the boat, which can be swung to windward of a boat under sail, in order to counteract the heeling force of the sail. The canting keel must be able to pivot… … Wikipedia
Fin keel — (Naut.) A projection downward from the keel of a yacht, resembling in shape the fin of a fish, though often with a cigar shaped bulb of lead at the bottom, and generally made of metal. Its use is to ballast the boat and also to enable her to sail … The Collaborative International Dictionary of English
