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FanWing or fan wing is a new concept for a type of STOL aircraft. It is distinct from existing types of aircraft like airplanes and helicopters in using a fixed wing with a forced airflow produced by cylindrical fan(s) mounted at the leading edge of the wing. Its makers claim it is the first horizontal-rotored integral lift and propulsion wing in history to sustain flight. FanWing Ltd is the name of the company created to develop the concept. ==Description== FanWing is a STOL aircraft that pulls the maximal airflow through both the propulsion and lifting surfaces. A cylindrical radial turbine (resembling a cylinder mower) is embedded in the wing with its axis parallel to the wing and leaving about 2/3 of the diameter exposed above the top side of the wing's length just after the leading edge. This increases the velocity of the airflow across the wing's upper surface beyond that of the forward motion of the aircraft. Consequently the wing has lift at slow speeds where a normal wing would stall.〔 ("It looks like a lawnmower, was designed in a kitchen - but it could revolutionise aviation" ) ''The Independent'', 11 November 2002〕〔("2004 Year In Ideas: The FanWing" ) ''The New York Times Magazine'', 12 December 2004 〕〔("More-powerful Fanwing set to fly" ) ''Flight International Magazine'', November 2004 〕 Practical trials with various remote-controlled models have proven that the concept provides a vehicle capable of controlled flight. There are however some significant differences compared with normal fixed-wing flying: * The throttle directly affects the pitch which means increased throttle can slow the plane down much in the same manner a helicopter flares, and if carelessly applied can force a complete mid-air stop. * Glide-ratio in case of power-failure is rather low (about 1:3) but if the power-line is disengaged, the fan-wing is fully capable of doing an auto-rotational landing. FanWing, the developing company, believes the configuration is quieter, has V/STOL capabilities, stability in cross-winds combined with low to zero risk of stalls and a very low build/maintenance costs. These claims have yet to be verified with full-sized fan-wings. Early attempts to develop a Coanda/Magnus effect airplane were discontinued because of the gyroscope effect of the rotating parts impairing airplane manoeuvrability. J Seifert: 'A review of the Magnus effect in Aeronautics'. () 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「FanWing」の詳細全文を読む スポンサード リンク
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