The Piper PA-31T Cheyenne is a

turboprop A turboprop is a turbine engine that drives an aircraft propeller. A turboprop consists of an intake, reduction gearbox, compressor, combustor, turbine, and a propelling nozzle. Air enters the intake and is compressed by the compressor. ...

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

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

; * Mauritanian Air Force ; *

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 sec ...

Variants

;PA-31T Cheyenne: Initial production version, powered by two 620-shp (462-kW)

Pratt & Whitney Canada PT6A The Pratt & Whitney Canada PT6 is a turboprop aircraft engine produced by Pratt & Whitney Canada. Its design was started in 1958, it first ran in February 1960, first flew on 30 May 1961, entered service in 1964 and has been continuously upda ...

-28 turboprop engines. Piper PA-31T Cheyenne photo D Ramey Logan

;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)

-28 turboprop engines. ;PA-31T2 Cheyenne IIXL: Stretched version, powered by two 750-shp (559-kW) Pratt & Whitney Canada PT6A-135 turboprop engines.

Specifications

References

External links

The Piper PA-31T Cheyenne history from Airliners.net
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Cheyenne The Cheyenne ( ) are an Indigenous people of the Great Plains. Their Cheyenne language belongs to the Algonquian language family. Today, the Cheyenne people are split into two federally recognized nations: the Southern Cheyenne, who are enr ...

1970s United States civil utility aircraft Low-wing aircraft Aircraft first flown in 1969 Twin-turboprop tractor aircraft