The CF6 high-bypass turbofan was based on the TF39 and was designed to power the McDonnell Douglas DC-10 and Lockheed L-1011. The DC-10 was launched with the CF6; however, the Lockheed went with the Rolls-Royce RB.211.
In production since 1971, the CF6 is used to power many of today's large commercial aircraft. The CF6 is known as the F103 by the U.S. military.

models

• CF6-6: 41,500 lb (185 kN) thrust
• CF6-50: 51,500-54,000 lb (229-240 kN) thrust
• CF6-80: 48,000-69,800 lb (213-310 kN) thrust

specifications

• Turbofan
• single-stage fan
• Compressor: 3-stage LP, 14-stage HP
• Turbine: 4-stage LP, 2-stage HP
• Mass flow: 1,300 lbs/sec
• Pressure ratio: 29 - 30

used by

• Airbus A300/A310/A330
• Boeing 747
• Boeing 767
• Boeing YC-14
• Douglas DC-10/KC-10
• Lockheed C-5 Galaxy
• McDonnell Douglas MD-11