Useful english dictionary. 2012.
duct|ed fan — or duct|ed propeller «DUHK tihd», a fan or propeller that turns within a cylinderlike duct which captures air normally thrown aside by the propeller. Ducted fans are used in some aircraft engines and on air cushion vehicles … Useful english dictionary
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
Ducted propeller — Kort nozzle A ducted propeller is a propeller fitted with a non rotating nozzle. It is used to improve the efficiency of the propeller and are especially used on heavily loaded propellers or propellers with limited diameter. It was developed by… … Wikipedia
Jet engine — For a general overview of aircraft engines, see Aircraft engine. A Pratt Whitney F100 turbofan engine for the … Wikipedia
North American P-51 variants — Main article: North American P 51 Mustang Further information: North American A 36, F 82 Twin Mustang The North American P 51 Mustang was an American long range single seat fighter aircraft that entered service with Allied air forces in the… … Wikipedia
Ducted fan — Bell X 22 on the tarmac A ducted fan is a propulsion arrangement whereby a fan, which is a type of propeller, is mounted within a cylindrical shroud or duct. The duct reduces losses in thrust from the tip vortices of the fan, and varying the… … Wikipedia
P-51 Mustang — infobox Aircraft name = P 51 Mustang type = Fighter manufacturer =North American Aviation caption = North American P 51 Mustangs of the 375th Fighter Squadron, 361st FG, summer 1944 first flight =26 October 1940 introduction =1942 retired =1957,… … 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
Aircraft engine — An aircraft engine is a propulsion system for an aircraft. Aircraft engines are almost always a type of lightweight internal combustion engine. This article is an overview of the basic types of aircraft engines and the design concepts employed in … Wikipedia
Aircraft — An aircraft is a vehicle which is able to fly through the Earth s atmosphere or through any other atmosphere. Rocket vehicles are not aircraft if they are not supported by the surrounding air. All the human activity which surrounds aircraft is… … Wikipedia
