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The most common ducted fan arrangement used in full-sized aircraft is a turbofan engine, where the power to turn the fan is provided by a gas turbine. High bypass ratio turbofan engines are used on nearly all civilian airliners , while military fighters usually make use of the better high-speed performance of a low bypass ratio turbofan with a ...
Aircraft whose primary form of thrust is derived from a piston engine, rotary engine or turboshaft driving a ducted fan. Subcategories This category has the following 2 subcategories, out of 2 total.
The RFB/Grumman American Fanliner was an experimental German light aircraft of the 1970s, propelled by a piston engine driving a ducted fan.A joint venture between the German company Rhein-Flugzeugbau (RFB) and the American general aviation manufacturer Grumman American, two examples were built, but no production followed.
The engine is used on the A220, A320neo family, Embraer E-Jet E2 and the Russian Yakovlev MC-21 (although exports were stopped as part of the international sanctions during the Russian invasion of Ukraine). The Pratt & Whitney PW1000G engine family initially garnered significant interest from airlines due to its touted fuel efficiency advantages.
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This arrangement introduces an additional gas leakage path compared to a front-fan configuration and was a problem with this engine with higher-pressure turbine gas leaking into the fan airflow. [48] An aft-fan configuration was later used for the General Electric GE36 UDF (propfan) demonstrator of the early 1980s.
A centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to the incoming fluid. Centrifugal fans often contain a ducted housing to direct outgoing air in a specific direction or across a heat sink; such a fan is also called a blower, blower fan, or squirrel-cage fan (because it looks like a hamster wheel).