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2. Ducted fan - Wikipedia

   en.wikipedia.org/wiki/Ducted_fan

   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 ...

3. Radio-controlled aircraft - Wikipedia

   en.wikipedia.org/wiki/Radio-controlled_aircraft

   Jets commonly use a micro turbine or ducted fan to power them. Most airframes are constructed from fiber glass and carbon fiber. For electric powered flight which are usually powered by electric ducted fans, may be made of styrofoam. Inside the aircraft, wooden spars reinforce the body to make a rigid airframe.

4. List of pusher aircraft by configuration and date - Wikipedia

   en.wikipedia.org/wiki/List_of_pusher_aircraft_by...

   Edgley Optica 1979 ducted fan observation aircraft 21 built; 1980 and later ADI Condor 1981 2 seat motorglider, unk no. built; Acapella 200 1982 homebuilt, 1 built [6] Applebay Zia 1982 1 seat ultralight motorglider, 4 built; Sadler Vampire 1982 Ultralight; Spectrum SA-550 1983 Utility prototype, 2 built; RTAF-5 1984 Trainer prototype

5. Edgley Optica - Wikipedia

   en.wikipedia.org/wiki/Edgley_Optica

   The Edgley EA-7 Optica is a British light aircraft designed for low-speed observation work, and intended as a low-cost alternative to helicopters.The Optica has a loiter speed of 130 km/h (70 kn; 81 mph) and a stall speed of 108 km/h (58 kn; 67 mph).

6. Model aircraft - Wikipedia

   en.wikipedia.org/wiki/Model_aircraft

   The fans were generally powered by 2 stroke engines at high RPM. They generally had 0.40 to 0.90 cu in (6.6 to 14.7 cc) displacements, but some were as small as 0.049 cu in (0.80 cc). This fan-in-tube design has been adopted successfully for electric-powered jets while glow engine powered ducted-fan aircraft are now rare.

7. Fenestron - Wikipedia

   en.wikipedia.org/wiki/Fenestron

   Ducted fan tail rotors have also been used in the Russian Kamov Ka-60 medium-lift helicopter, [17] and also on the Japanese military's Kawasaki OH-1 Ninja reconnaissance rotorcraft. French light helicopter manufacturer Hélicoptères Guimbal has also used a Fenestron for their Guimbal Cabri G2, a compact reciprocating engine-powered rotorcraft ...