bilge keel

bilge keel
a strake, or small keel or blister, running along much of the length of the hull. It is used to reduce the hulls tendency to roll. They are typically fitted one on each side, low down on the side of the hull, so as not to increase the draft of the vessel. In battleships they were often quite large and used as part of the torpedo protection system.

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  • Bilge keel — Keel Keel, n. [Cf. AS. ce[ o]l ship; akin to D. & G. kiel keel, OHG. chiol ship, Icel. kj[=o]ll, and perh. to Gr. gay^los a round built Ph[oe]nician merchant vessel, gaylo s bucket; cf. Skr. g[=o]la ball, round water vessel. But the meaning of… …   The Collaborative International Dictionary of English

  • bilge keel — n. a projecting strip of metal or wood fastened lengthwise on either side of a ship s bottom to prevent heavy rolling, damage to the bilges, etc.: also bilge chock or bilge piece …   English World dictionary

  • bilge keel — bilge′ keel n. naut. navig. a keellike projection along a ship s bilge to retard rolling • Etymology: 1840–50 …   From formal English to slang

  • Bilge keel — protection system.A bilge keel is often in a V shape, welded along the length of the ship at the turn of the bilge. Bilge keels are employed in pairs (one for each side of the ship). A ship may have more than one bilge keel per side, but this is… …   Wikipedia

  • bilge keel — noun either of two lengthwise fins attached along the outside of a ship s bilge; reduces rolling • Hypernyms: ↑keel • Part Holonyms: ↑vessel, ↑watercraft * * * noun also bilge piece : a steel plate or other …   Useful english dictionary

  • bilge keel — /ˈbɪldʒ kil/ (say bilj keel) noun either of two keel like projections extending lengthwise along a ship s bilge, one on each side, to retard rolling. Also, bilge piece …  

  • bilge keel — Naut. either of two keellike projections extending lengthwise along a ship s bilge, one on each side, to retard rolling. Also called bilge piece. [1840 50] * * * …   Universalium

  • bilge keel — noun Date: 1850 a projection like a fin extending from the hull near the turn of the bilge on either side to check rolling …   New Collegiate Dictionary

  • bilge keel — A long longitudinal fin fitted on the curved of a ship at the turn of the bilge to reduce rolling …   Dictionary of automotive terms

  • bilge keel — noun each of a pair of plates or timbers fastened under the sides of the hull of a ship to prevent rolling and support its weight in dry dock …   English new terms dictionary

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