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optimum propeller

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  • Propeller — A propeller is essentially a type of fan which transmits power by converting rotational motion into thrust for propulsion of a vehicle such as an aircraft, ship, or submarine through a mass such as water or air, by rotating two or more twisted… …   Wikipedia

  • Constant speed propeller — Cutaway constant speed propeller hub …   Wikipedia

  • Controllable pitch propeller — A controllable pitch propeller (CPP) or variable pitch propeller is a type of propeller with blades that can be rotated around their long axis to change their pitch. If the pitch can be set to negative values, the reversible propeller can also… …   Wikipedia

  • Model aircraft — A die cast Boeing 747 400 model. Model aircraft are flying or non flying models of existing or imaginary aircraft using a variety of materials including plastic, diecast metal, polystyrene, balsa wood, foam and fibreglass. Flying designs range… …   Wikipedia

  • air-cushion machine — ▪ vehicle Introduction also called  ground effect machine,  or  hovercraft,         any of the machines characterized by movement in which a significant portion of the weight is supported by forces arising from air pressures developed around the… …   Universalium

  • Centurion Engines — The Centurion is a series of diesel cycle aircraft engines for general aviation built by Thielert. They are based on Mercedes Benz automotive engines, albeit heavily modified.Each Centurion engine is water cooled and turbocharged. It has a one… …   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

  • Osprey class submersible — For other ship classes of the same name, see Osprey class. Career  People s Liberation Army N …   Wikipedia

  • Turbofan — [ CFM56 3 turbofan, lower half, side view.] A turbofan is a type of jet engine, similar to a turbojet. It essentially consists of a ducted fan with a smaller diameter turbojet engine mounted behind it that powers the fan. Part of the airstream… …   Wikipedia

  • USS Albacore (AGSS-569) — was a unique research submarine that pioneered the American version of the teardrop hull form (sometimes referred to as an Albacore hull ) of modern submarines. The design was directly influenced by the Type XXI U boat submarine, and the Soviets… …   Wikipedia

  • Bell P-39 Airacobra — P 39 Airacobra P 39Q 1BE 42 19447, Saga Boy II of Lt. Col. Edwin S. Chickering, CO 357th Fighter Group, July 1943 Role Fighter …   Wikipedia

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