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  2. Toroidal propeller - Wikipedia

    en.wikipedia.org/wiki/Toroidal_propeller

    A toroidal propeller is a type of propeller that is ring-shaped with each blade forming a closed loop. The propellers are significantly quieter at audible frequency ranges, between 20 Hz and 20 kHz, while generating comparable thrust to traditional propellers. In practice, toroidal propellers reduce noise pollution in both aviation and maritime ...

  3. Yakovlev Yak-52 - Wikipedia

    en.wikipedia.org/wiki/Yakovlev_Yak-52

    The TW has an extra 120 L (32 US gal) of fuel capacity in two extra wing tanks, the M14PF engine designated & three blade propeller, an electric start, and modern instruments. On April 16, 2004, a modernised variant Yak-52M was flown in Russia. It is fitted with modernised M-14Kh engine, three-blade propeller, and other modifications.

  4. Propeller (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Propeller_(aeronautics)

    A 6-bladed Hamilton Standard 568F propeller on an ATR 72 short-haul airliner. Lowry [27] quotes a propeller efficiency of about 73.5% at cruise for a Cessna 172.This is derived from his "Bootstrap approach" for analyzing the performance of light general aviation aircraft using fixed pitch or constant speed propellers.

  5. Radio-controlled aircraft - Wikipedia

    en.wikipedia.org/wiki/Radio-controlled_aircraft

    An RC flyer demonstrating knife edge flying. A radio-controlled aircraft (often called RC aircraft or RC plane) is a small flying machine that is radio controlled by an operator on the ground using a hand-held radio transmitter.

  6. Contra-rotating propellers - Wikipedia

    en.wikipedia.org/wiki/Contra-rotating_propellers

    Contra-rotating propellers Contra-rotating propellers on the Rolls-Royce Griffon-powered P-51XR Mustang Precious Metal at the 2014 Reno Air Races. Aircraft equipped with contra-rotating propellers (CRP) [1] coaxial contra-rotating propellers, or high-speed propellers, apply the maximum power of usually a single piston engine or turboprop engine to drive a pair of coaxial propellers in contra ...

  7. Pusher configuration - Wikipedia

    en.wikipedia.org/wiki/Pusher_configuration

    1871 Planophore A Farman MF.11, showing the classic Farman configuration with engine between tail booms Buhl A-1 Autogyro, the first pusher autogyro The post-WWII Convair B-36 was unusual in its size, era, number of engines, and combining both propeller and jet propulsion, with six radial piston and four jet engines Typical of many UAVs, the General Atomics MQ-9 Reaper has a propeller at the ...

  8. Ducted fan - Wikipedia

    en.wikipedia.org/wiki/Ducted_fan

    Other terms include ducted propeller or shrouded propeller. [1] When used in vertical takeoff and landing applications it is also known as a shrouded rotor. [2] Ducted fans are used for propulsion or direct lift in many types of vehicle including airplanes, airships, hovercraft, and powered lift VTOL aircraft. The high-bypass turbofan engines ...

  9. Nakajima C6N - Wikipedia

    en.wikipedia.org/wiki/Nakajima_C6N

    C6N1 Saiun Model 11 (彩雲11型, Saiun 11-gata) General production model. Three-blade propeller, mounted Nakajima NK9H Homare 21 engine. C6N1-B Saiun Model 21 (彩雲21型, Saiun 21-gata) Proposed torpedo bomber version. Only a project. C6N1 Saiun Model 11 night fighter variant (彩雲11型改造夜戦, Saiun 11-gata Kaizō yasen)

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