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The Piper PA-31T Cheyenne is a turboprop development of the earlier PA-31P Pressurized Navajo.


Development

Originally, the aircraft was an upgraded version of the Pressurized Navajo equipped with two Pratt & Whitney Canada PT6A-28 turboprop engines. Later, the aircraft was further refined and developed, including aerodynamic improvements and fuselage extensions. The PA-31T led to the development of the PA-42 Cheyenne III and IV.


Operators


Military operators

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United States Department of Defense The United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national secur ...
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Variants

;PA-31T Cheyenne: Initial production version, powered by two 620-shp (462-kW) Pratt & Whitney Canada PT6A-28 turboprop engines. ;PA-31T-1: Original designation of the PT-31T Cheyenne I. Powered by 500-shp (373-kW) Pratt & Whitney Canada PT6A-II turboprop engines. ;PA-31T Cheyenne II: Improved version, renamed version of original powered by two 620-shp (462-kW) Pratt & Whitney Canada PT6A-28 turboprop engines. ;PA-31T2 Cheyenne IIXL: Stretched version, powered by two 750-shp (559-kW) Pratt & Whitney Canada PT6A-135 turboprop engines.


Specifications


See also


References


External links


The Piper PA-31T Cheyenne history from Airliners.net
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1970s United States civil utility aircraft Low-wing aircraft Aircraft first flown in 1969 Twin-turboprop tractor aircraft