It was first run in 1958 and was first flown in 1959 under a B-45 Tornado test aircraft. Over 8,000 JT3Ds were produced between 1959 and 1985. Most JT3D engines still in service today are …

Eight Pratt & Whitney TF33 engines power the U.S. Air Force’s B-52 Stratofortress long-range, heavy bomber that is capable of flying at high subsonic speeds at altitudes up to 50,000 feet. It …

The Pratt & Whitney TF33 turbofan engine was developed from the highly successful Pratt & Whitney J57 engine core. Starting in 1960, the civilian version (designated the JT3D) powered …

The JT3D jet engine developed by Pratt & Whitney in 1950s or TF33 as it is designated in the U.S. Airforce, was a top of the line jet engine used widely in the airline industry as well as in …

Pem-Air provides expert MRO for JT3D/TF33 engines, offering maintenance, repairs, & overhauls to extend service life for commercial & military aircraft.

It is expected to remain as a mainstay of the Air Force heavy bomber fleet until at least 2040, with options for replacing the 8 TF33 engines with more modern equivalents being considered.

Nov 16, 2023 · Pratt & Whitney, a part of Raytheon Technologies, has secured a contract worth up to $870 million from the US Defense Logistics Agency (DLA) for the sustainment of TF33 …

The TF33 (JT3D) is a turbofan version of the J57 turbojet. The first two compressor stages of the cancelled J91/JT9 replaced the first three compressor stages of the J57, making it simple to …

EAST HARTFORD, CT, Sep 11, 2025 – Pratt & Whitney has secured a $18 million contract from the NATO Support and Procurement Agency (NSPA) to provide TF33 engine sustainment for …

The TF33 engine powers the C141 Starlifter strategic transport aircraft (TF33-P-7) and the B-52H Stratofortress strategic bomber (TF33-P-3). Each B-52 is powered by eight of the TF33 engines.