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Fleetwings BT-12 Sophomore
The Fleetwings BT-12 Sophomore, also known by the company designation Model 23, was a 1940s all-metal basic training monoplane built by Fleetwings for the United States Army Air Forces. Only 24 production examples of the type were built before the contract was cancelled.
==Design and development==
With the outbreak of the Second World War, the United States Army Air Corps (later U.S. Army Air Forces) was ill-prepared for a major war. In an effort to obtain as many aircraft as possible the USAAF contracted Fleetwings, a specialist fabricator of sheet stainless steel, to produce a basic training monoplane. A prototype Model 23 was ordered as the XBT-12 during 1939.
The XBT-12 was an all-metal low-wing cantilever monoplane with a fixed tailwheel landing gear and powered by a Pratt & Whitney R-985 engine. The aircraft had two identical tandem cockpits for instructor and pupil covered by a continuous canopy. It was the first military aircraft to be constructed primarily from welded stainless steel.
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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