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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.
Pratt & Whitney J57/JT3C The Pratt & Whitney JT3D is an early turbofan aircraft engine derived from the Pratt & Whitney JT3C turbojet. It was first run in 1958 and was first flown in 1959 under a B-45 Tornado test aircraft.
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]
The Pratt & Whitney J75 (civilian designation: JT4A) is an axial-flow turbojet engine first flown in 1955. A two-spool design in the 17,000 lbf (76 kN) thrust class, the J75 was essentially the bigger brother of the Pratt & Whitney J57 (JT3C). It was known in civilian service as the JT4A, and in a variety of stationary roles as the GG4 and FT4
RTI Announces Engine Launch Customer for EB Furnace and Signs Long Term Agreement with Pratt & Whitney to Supply Rotor-Quality Titanium for Advanced Turbofan Engines PITTSBURGH--(BUSINESS WIRE ...
Eighteen C-135As (Boeing model number 717-157 [8]), powered by Pratt & Whitney J57 turbojets, were built. In later years, almost all were upgraded with Pratt & Whitney TF33 turbofan engines and wide-span horizontal stabilizers, and were re-designated C-135E.
U.S. regulators are requiring immediate inspections and possible repairs to Pratt & Whitney engines on some Airbus passenger jets because of a manufacturing problem that could cause parts to wear ...
In September 2023, Wizz Air had estimated a potential 10% capacity reduction in the second half of fiscal 2024, due to the inspection of Pratt & Whitney's turbofans.