coaxial propeller

См. также в других словарях:

• coaxial propellers — Two propellers mounted on concentric propeller shafts with independent drives and rotating in opposite direction. This arrangement results in zero residual torque …   Aviation dictionary

• dual-rotation propeller — noun : an assembly of two airplane propellers mounted one behind the other on coaxial shafts and rotating in opposite directions …   Useful english dictionary

• Contra-rotating — A Soviet Ka 32 helicopter with coaxial contra rotating rotors, in 1989 Contra rotating, also referred to as coaxial contra rotating, is a technique whereby parts of a mechanism rotate in opposite directions about a common axis, usually to… …   Wikipedia

• Contra-rotating propellers — For contra rotating marine propellors, helicopter rotors and turbine fan blades, see Contra rotating. Not to be confused with counter rotating propellers. Contra rotating propellers on a Rolls Royce–Griffon–powered P 51 unlimited racer Aircraft… …   Wikipedia

• Sikorsky X2 — Infobox Aircraft name= X2 Demonstrator caption= Concept of the Sikorsky X2 Demonstrator type= Experimental helicopter manufacturer=Sikorsky Aircraft/Schweizer Aircraft designer= first flight= 27 August 2008Trimble, Stephen.… …   Wikipedia

• airplane — /air playn /, n. 1. a heavier than air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. 2. any similar heavier than air aircraft, as a glider or helicopter. Also …   Universalium

• Turboprop — A turboprop engine is a type of aircraft powerplant that uses a gas turbine engine to drive a propeller. The gas turbine is designed specifically for this application, with almost all of its output being used to drive the propeller. The engine s… …   Wikipedia

• Tiltrotor — The Bell Boeing V 22 Osprey …   Wikipedia

• BRDM-2 — Infobox Weapon name=BRDM 2 caption=Iraqi BRDM at the U.S. National Infantry Museum, Fort Benning origin=Soviet Union type=Amphibious Armoured Scout Car is vehicle=yes service=1962 present used by=See Operators wars=See Service History designer=V …   Wikipedia

• Electric boat — This article is about electrically powered boats in general. For the company called Electric Boat , see General Dynamics Electric Boat. Passenger solar boat Solifleur, Switzerland 1995 While a significant majority of water vessels are powered by… …   Wikipedia

• Helicopter — For other uses, see Helicopter (disambiguation). Helicopter An LAPD Bell 206 …   Wikipedia