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Breguet 941
The Breguet 941 was a French four-engine turboprop STOL transport aircraft developed by Breguet in the 1960s. Although widely evaluated, it was not built in large numbers, with only one prototype and four production aircraft being built.
==Design and development==
In the late 1940s and early 1950s, the French aviation pioneer Louis Charles Breguet developed a concept for a ''Short Take Off and Landing'' (STOL) aircraft using four Free-turbine turboshaft engines to drive a common power shaft, which, in turn drove four oversize propellers, which were evenly spaced along the leading edge of the wing with large, full-span, slotted flaps, with the arrangement known as ''"l'aile soufflée"'' or blown wing.〔(【引用サイトリンク】title= Aérostories Breguet Br 940/941 The Airplane with the "Deflection slipstream concept" )〕
An initial, experimental prototype, powered by four Turbomeca Turmo II engines, the Breguet 940 Integral, first flew on 21 May 1958,〔 and was used to prove the concept, demonstrating excellent short field performance. This led to an order being placed in February 1960 for a prototype of an aircraft employing the same concept, but capable of carrying useful loads. This aircraft, the Breguet 941, first flew on 1 June 1961.
Testing of this prototype resulted in an order for four improved production aircraft, the Breguet 941S for the French Air Force, first flying on 19 April 1967. These were fitted with more powerful engines and a modified rear cargo door to allow for air-dropping of stores.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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