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. It is a two spool engine.

The J57 was a twin-spool 16-stage axial flow turbojet engine designed by Pratt & Whitney in the early 1950s and was the first American jet engine to produce more that 10,000 lbs. thrust. It was a big departure from the earlier centrifugal-flow engines and a …

The J57 (first run January 1950) was the first 10,000 lbf (45 kN) thrust class engine in the United States. The J57/JT3C was developed into the J52 turbojet, the J75/JT4A turbojet, the JT3D/TF33 turbofan, and the XT57 turboprop (of which only one was built).

j57是美国普拉特 惠 特尼公司五十年代前后研制的大型军用涡喷发动机。初步设计始于1947年，1949年完成最终设计，1952年通过定型，1953年开始批生产。 初步设计始于1947年，1949年完成最终设计，1952年通过定型，1953年开始批生产。

2017年8月28日 · Pratt & Whitney’s J57 engine is a twin-spool, axial flow turbojet engine with standard and afterburning configuration. The J57 was the first turbojet design for the company and represented a technological leap in the field of jet engine design which was well received and truly revolutionized air travel when introduced in the early 1950s.

The X-176 Pratt & Whitney turbojet engine was the prototype of the famous J57 series, the first successful twin-spool turbine engine and the first production aircraft engine in the 10,000 lb (44,480 N) thrust class. The early 1948 design was superceded by the "wasp-waisted" configuration and retired in August 1950.

The J57 turbojet was the first production jet engine to produce 10,000 pounds of thrust. The J57 featured a dual-rotor axial-flow compressor, which lowered fuel consumption over a wide operating range and improved the sluggish acceleration characteristic of previous jet engines.

2024年12月21日 · This J57 turbojet engine is a -P55 variant that was produced by Pratt & Whitney for use on a military aircraft. The engine is equipped with an afterburner and is secured to an Air Logistics Corporation trailer, though it is not known when the engine last ran or what its history was before the current owner’s acquisition approximately a decade ...

The Pratt & Whitney J57 is an axial-flow turbojet engine developed by Pratt & Whitney in the early 1950s. The J57 was the first 10,000 lbf (45 kN) thrust class ...

Pratt & Whitney introduced its J57 turbojet engine in 1950. The versatile unit powered everything from Boeing 707 passenger airliners to B-52 bombers. Turbojets heat compressed air inside a gas turbine -- the turbine drives the compressor -- and expand the exhaust through a propelling nozzle, which provides thrust for the airplane.