Although turbojet and turbofan jet engines are similar, the things that set them apart make them very different. Here's what ...

Both NASA and Lockheed Martin recently released photos of the X-59 "quiet" supersonic jet conducting tests of its afterburner, a system that injects extra fuel into the hot exhaust of a jet engine.

In new photos, the X-59 performs afterburner tests at Lockheed ... to listen to the X-59' by simulating sonic thumps with fighter jets (photos) ...

Pratt & Whitney has been awarded a three-year, $1.5 billion contract to sustain F119 engines powering U.S. Air Force F-22 ...