Pratt & Whitney J57 Turbojet

  • By

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.

J57 production began in 1953. The same year, Pratt & Whitney was awarded America's highest aviation honor, the Collier Trophy, for the design and development of the J57. When production ended in 1970, Pratt & Whitney had built more than 21,000 engines.

The cut-away engine on display is a YJ57-P-3, the first version to go into production. Rated at only 8,700 pounds of thrust, it served as a prototype for higher-powered engines used in operational B-52s. Later versions of the J57 and its commercial equivalent, the JT3, were improved to reach 18,000 pounds of thrust with afterburner. In addition to the B-52, the J57 powered numerous USAF aircraft, including the KC-135, F-100, F-101, and F-102.

Click here to return to the Cold War Gallery.

Find Out More
Line
Related Fact Sheets
Convair F-102A Delta Dagger
Line
All visitors may be screened with a metal detector upon entry. In addition, all bags are subject to search and may be placed through an X-Ray machine. Weapons are not permitted including pocket knives.
  • Visitor Photography Notice

    Notice: Visitors may be filmed, photographed or recorded by the U.S. Air Force for educational and promotional uses, including for posting on public websites and social media.  
    Individuals are permitted to take their own photographs or videos while touring the museum.

 

Note: The appearance of hyperlinks does not constitute endorsement by the National Museum of the USAF, the U.S. Air Force, or the Department of Defense, of the external website, or the information, products or services contained therein.