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  2. Pratt & Whitney Canada PT6 - Wikipedia

    en.wikipedia.org/wiki/Pratt_&_Whitney_Canada_PT6

    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.

  3. de Havilland Canada DHC-6 Twin Otter - Wikipedia

    en.wikipedia.org/wiki/De_Havilland_Canada_DHC-6...

    The availability of the 550 shaft horsepower (410 kW) Pratt & Whitney Canada PT6A-20 turboprop in the early 1960s made the concept of a twin feasible. A DHC-3 Otter with its piston engine replaced with two PT6A-4 [3] engines had already flown in 1963. It had been extensively modified for STOL research. [4]

  4. Pratt & Whitney Canada PT6T - Wikipedia

    en.wikipedia.org/wiki/Pratt_&_Whitney_Canada_PT6T

    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 ...

  5. Piper PA-42 Cheyenne - Wikipedia

    en.wikipedia.org/wiki/Piper_PA-42_Cheyenne

    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. Powered by 1,000 shp (750 kW) Garrett TPE-331 engines, and four-blade props. [1]

  6. Beechcraft T-6 Texan II - Wikipedia

    en.wikipedia.org/wiki/Beechcraft_T-6_Texan_II

    The Model 3000/T-6 is a low-wing cantilever monoplane with enclosed tandem seating for two. It is powered by a single Pratt & Whitney Canada PT6A-68 turboprop engine in tractor configuration with an aluminum, 97-inch (8.1 ft; 2.5 m), four-blade, constant-speed, variable pitch, non-reversing, feathering propeller assembly and has retractable tricycle landing gear.

  7. Piper PA-31T Cheyenne - Wikipedia

    en.wikipedia.org/wiki/Piper_PA-31T_Cheyenne

    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.

  8. PAC P-750 XSTOL - Wikipedia

    en.wikipedia.org/wiki/PAC_P-750_XSTOL

    In March 2018, Pacific Aerospace launched an updated variant, the Super-Pac XL, with a 900 hp (670 kW) PT6A-140A up from 750 hp and a four-blade 108in (270 cm) Hartzell propeller. It competes with the Supervan 900 re-engined Cessna 208 Caravan with a 900 hp Honeywell TPE331 and 110in four-blade Hartzell propeller. A modified P-750 is ground ...

  9. Air Tractor AT-400 - Wikipedia

    en.wikipedia.org/wiki/Air_Tractor_AT-400

    AT-401A - AT-401 with PZL-3S engine. One built. [2] AT-401B-Improved revision of AT-401, with revised wingtips and further increased span (51 ft 1¼ in (15.57 m)). 69 built by December 2001. [2] AT-402 - AT-401 with Pratt & Whitney Canada PT6A-15 engine. [3] 68 built. [2] AT-402A - low cost version of AT-401B, with Pratt & Whitney Canada PT6A ...