Piper PA-31T Cheyenne is a turboprop development of the earlier PA-31P Pressurized Navajo.
Development [ edit ]
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.
Variants [ edit ]
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 [ edit ]
Data from Jane's all The World's Aircraft 1976–77 [1 ]
326 mph (525 km/h, 283 knots) at 11,000 ft (3,360 m) Maximum speed:
244 mph (393 km/h, 212 knots) at 25,000 ft (7,600 m) Cruise speed:
88 mph (142 km/h, 77 knots) (flaps down) Stall speed:
1,702 mi (2,739 km, 1,478 nmi) (econ cruise, 45 min reserves) Range:
29,000 ft (8,840 m) Service ceiling:
2,800 ft/min (14.2 m/s) Rate of climb:
See also [ edit ]
Aircraft of comparable role, configuration and era
References [ edit ]
^ Taylor 1976, pp. 358–359.
Taylor, John W.R.
Jane's All The World's Aircraft 1976–77. London:Jane's Yearbooks, 1976, ISBN 0-354-00538-3.
External links [ edit ]