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keel-drag ratio

См. также в других словарях:

  • 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

  • Powered hang glider — A foot launched powered hang glider (FLPHG), also called powered harness, nanolight or hangmotor, is a powered hang glider harness with a motor and propeller in pusher configuration. An ordinary hang glider is used for its wing and control frame …   Wikipedia

  • Scramjet — Part of a series on Aircraft propulsion Shaft engines (to drive pr …   Wikipedia

  • B-24 Liberator — Infobox Aircraft name= B 24 Liberator type= Heavy bomber manufacturer= Consolidated Aircraft caption= U.S. Army Air Forces Consolidated B 24D Liberator over Maxwell Field, Alabama. designer= Isaac M. Laddon first flight= 29 December 1939… …   Wikipedia

  • Consolidated B-24 Liberator — B 24 redirects here. For other meanings, see B24 (disambiguation). B 24 Liberator U.S. Army Air Forces Consolidated B 24D Liberator over Maxwell Field, Alabama …   Wikipedia

  • Surfboard — For other meanings see Surfboard (disambiguation). A stack of boards in Waikiki during a surf competition …   Wikipedia

  • Square rig — is a generic type of sail and rigging arrangement in which the primary driving sails are carried on horizontal spars which are perpendicular, or [http://en.wiktionary.org/wiki/square#Adjective square] , to the keel of the vessel and to the masts …   Wikipedia

  • Daggerboard — Two different daggerboards. A daggerboard is a retractable centreboard used by various sailing craft. While other types of centreboard may pivot to retract, a daggerboard slides in a casing. The shape of the daggerboard converts the forward… …   Wikipedia

  • Messerschmitt Me 163 — Not to be confused with Messerschmitt Bf 163. Me 163 Komet Me 163B 1a at the National Museum of Flight in Scotland …   Wikipedia

  • Hull (watercraft) — Half hull of the 46 gun ship of the line Tigre, build from 1724 in Toulon after plans by Blaise Coulomb A hull is the watertight body of a ship or boat. Above the hull is the superstructure and/or deckhouse, where present. The line where the hull …   Wikipedia

  • Anchor — For other uses, see Anchor (disambiguation). Ploudalmézeau, anchor of Amoco Cadiz An anchor is a device, normally made of metal, that is used to connect a vessel to the bed of a body of water to prevent the vessel from drifting due to wind or… …   Wikipedia

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