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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 updated since.
Congress only approved the purchase when it was assured that a U.S. source would be found for the PT6T engines. This source was Pratt & Whitney Engine Services in Bridgeport, West Virginia, which was established in 1971 to assemble and test new T400-WV-402 engines. As a result, the U.S. military ordered 294 Bell 212s under the designation UH-1N ...
PC-6 cabin interior, circa 1960s. The Pilatus PC-6 Porter is a Short Takeoff and Landing (STOL) utility aircraft.The majority of aircraft are powered by a single Pratt & Whitney Canada PT6A turboprop engine, which drives a fully reversible, constant-speed, three-bladed HC-B3TN-3D (or an alternative four-bladed HC-D4N-3P) Hartzell aluminium propeller via a reduction gearbox.
For this reason turboprop engines are not commonly used on aircraft [4] [5] [6] that fly faster than 0.6–0.7 Mach, [7] with some exceptions such as the Tupolev Tu-95. However, propfan engines, which are very similar to turboprop engines, can cruise at flight speeds approaching 0.75 Mach. To maintain propeller efficiency across a wide range of ...
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
Due to the higher fuel consumption of the turbine engines of the BT-67, compared to the original piston designs fitted to the standard DC-3, range on the standard fuel tank, with 45 minute reserve, is reduced from 1,160 to 950 nautical miles (2,150 to 1,760 km).
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Aero Commander S-2D exhibited at the 1967 Paris Air Show Ayres S2R-T Thrush powered by a Pratt & Whitney Canada PT-6 turboprop Ayres S ... engine. Fitted with 6 ...