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The Pratt & Whitney J57 (company designation: JT3C) is an axial-flow turbojet engine developed by Pratt & Whitney in the early 1950s. The J57 (first run January 1950 [ 1 ] ) was the first 10,000 lbf (45 kN) thrust class engine in the United States.
Active Bangladesh military aircraft is a list of military aircraft that are used by the Bangladesh Armed Forces. For aircraft no longer in-service see: List of historic Bangladesh military aircraft. Approximately 80 aircraft and five Mil Mi-17 were destroyed by the devastating 1991 Bangladesh cyclone.
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Jet Trainer: B 11 [2] Retired from active service. Replaced with Hongdu K-8W jet trainers. [3] de Havilland Canada DHC-3 Otter Canada: Military transport aircraft: 1 Ex Indian Air Force. Douglas Dakota USA: Military transport aircraft: 1 Ex Indian Air Force. Fouga CM.170 Magister France: Jet Trainer: 19 Retired in favor of more capable Aero L ...
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The Rolls-Royce Olympus (originally the Bristol B.E.10 Olympus) was the world's second two-spool axial-flow turbojet aircraft engine design, first run in May 1950 and preceded only by the Pratt & Whitney J57, first-run in January 1950. [1] [2] It is best known as the powerplant of the Avro Vulcan and later models in the Concorde SST.
The second major change to the RB-57D was the addition of Pratt & Whitney J57 engines in place of the Wright J65 engines used on all earlier B-57 models. The two J57 engines produced about 20,000 lbf (89.0 kN) total thrust, about 6,000 lbf (26.7 kN) more than the two J65 engines. Other changes in the D model included removal of all fuselage ...
One XT57 (PT5), a turboprop development of the J57, was installed in the nose of a JC-124C (BuNo 52-1069), and tested in 1956. [3] [4]Rated at 15,000 shaft horsepower (11,000 kW), the XT57 was the most powerful turboprop engine in existence at the time, [5] and it remains the most powerful turboprop ever built in the United States. [2]