The development of the J79 turbojet began in 1952 as a more powerful follow-up to the General Electric J47 turbojet. The engine generated a maximum of 17,000 pounds of thrust (-15 version) with the afterburner operating.

The engine was used on the Convair B-58 "Hustler", the first US bomber capable of maintaining speeds in excess of Mach 2. The J79 also was used some fighters developed during the late 1950's. The two most famous examples are the McDonnell Douglas F-4 and Lockheed F-104 - both capable of flying at Mach 2.

SPECIFICATIONS
Model: J79-GE-15
Compressor: 17-stage axial
Turbine: three-stage axial
Maximum Takeoff Thrust with Afterburner: 17,000 lbs.
Military Power Rating: 10,900 lbs.
Weight: 3,850 lbs.
Length: 17 ft. 5 in.
Diameter: 3 ft. 2 in.