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The Stearman XBT-17 was a prototype 1940s American two-seat low-wing monoplane primary trainer designed and built by Stearman Aircraft (as the Model X-90).[1] It was evaluated by the United States Army Air Force in 1942 as the XBT-17.[2]

XBT-17
Role Training monoplane
National origin United States
Manufacturer Stearman Aircraft
First flight 1940
Number built 1

Design and development


The X-90 was a low-wing cantilever monoplane with two-seats in tandem under an enclosed canopy.[1] It had a fixed conventional landing gear and was powered by a 225 hp (168 kW) Lycoming R-680 engine and first flew in 1940.[1] It had wooden wings and a steel tube forward fuselage in order minimize use of aluminum.[3] In 1942 the aircraft was re-engined with a 450 hp (336 kW) Pratt & Whitney R-985 engine and redesignated the Model X-91.[1] The X-91 was evaluated by the United States Army Air Force as the XBT-17 but no more were built.[1][2]


Variants


Stearman X-90
Prototype basic trainer with a 225 hp (168 kW) Lycoming R-680 engine.[1]
Stearman X-91
The X-90 re-engined with a 450 hp (336 kW) Pratt & Whitney R-985 engine for USAAF evaluation.[1]
Stearman XBT-17
United States Army Air Force designation for the X-91.[2]

Specifications (XBT-17)


Data from [4]

General characteristics

Performance


See also


Related lists


References


Notes
  1. "American airplanes: Stearman". www.aerofiles.com. 1 December 2008. Retrieved 2010-02-16.
  2. Andrade 1979, p. 61
  3. Bowers 1989, p.270.
  4. Bowers 1989, p.271.
Bibliography



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