ballast keel

ballast keel
stępka balastowa

English-Polish dictionary for engineers. 2013.

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  • keel — keel1 keeled, adj. /keel/, n. 1. Naut. a central fore and aft structural member in the bottom of a hull, extending from the stem to the sternpost and having the floors or frames attached to it, usually at right angles: sometimes projecting from… …   Universalium

  • 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

  • ballast fin — noun : a fin shaped metal extension of the keel of a yacht that acts as ballast : fin keel …   Useful english dictionary

  • Sailing ballast — Ballast is used in sailboats to provide moment to resist the lateral forces on the sail. Insufficiently ballasted boats will tend to tip, or heel, excessively in high winds. Too much heel may result in the boat capsizing. When sailing vessels… …   Wikipedia

  • 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

  • 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

  • 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

  • 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 — (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

  • fin keel — /ˈfɪn kil/ (say fin keel) noun a finlike projection extending downwards from the keel of a sailing boat, serving to prevent lateral motion and acting as additional ballast …  

  • trough keel — noun : a keel in a yacht having the form of a trough into which molten lead is poured as ballast compare bar keel …   Useful english dictionary

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