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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.
The King Air B200 serial number BB-1686, was manufactured in 2000 and was powered by two Pratt & Whitney PT6A-42 turboprop engines turning four bladed Hartzell constant-speed propellers. The aircraft was owned and operated by Gilleland Aviation Inc who had purchased it two days prior to the accident flight.
Cheyenne III, model PA-42, equipped with Pratt & Whitney Canada PT6-41 engines; Cheyenne IIIA, model PA-42-720, equipped with PT6A-61 engines. [7] Cheyenne IV, model PA-42-1000, later the Cheyenne 400LS, and then Cheyenne 400. This is the largest aircraft ever made by Piper, with 43 built.
The Conroy Tri-Turbo-Three was a Douglas DC-3 fitted with three Pratt & Whitney Canada PT6A turboprop engines by Conroy Aircraft; the third engine was mounted on the nose of the aircraft. Design and development
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 ...
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.
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The B200GT is fitted with a new model of PT6 engine developed specifically for it by Pratt & Whitney Canada; while still rated at 850 shp (630 kW) the new PT6A-52 develops maximum power to an even higher altitude than the −42 it replaces, thus further improving aircraft performance.