The General Electric J79 is an American turbojet engine that was developed in the early 1950s to meet the demand for a high-performance engine for supersonic aircraft. It features a variable stator compressor that allows it to operate efficiently at a wide range of speeds and altitudes. The J79 powered several iconic aircraft, such as the McDonnell Douglas F-4 Phantom II, the F-104 Starfighter, and the B-58 Hustler. It has a thrust of 66.7kN without afterburner, and 80kN with afterburner. It would later be famed as one of the most successful jet engines ever designed.