Pratt & Whitney J75
Turbojet engine / From Wikipedia, the free encyclopedia
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"J75" redirects here. For the locomotive class classified J75 by the LNER, see H&BR Class G3.
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.
Quick Facts J75 / JT4A, Type ...
J75 / JT4A | |
---|---|
Two JT4As installed on a KLM DC-8 | |
Type | Turbojet |
National origin | United States |
Manufacturer | Pratt & Whitney |
First run | 1955 |
Major applications | Boeing 707 Convair F-106 Delta Dart Douglas DC-8 Lockheed U-2 Republic F-105 Thunderchief |
Developed from | Pratt & Whitney J57 |
Developed into | Pratt & Whitney GG4/FT4 |
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