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Engines Supported


18,500 – 23,500 Pounds Thrust


The CFM56-3 was designed for Boeing 737 second-generation -300, -400, -500 aircraft. It is derived from the -2, the original CFM engine. This super-reliable turbofan is in service all over the world. The engine-airframe combo 737 entered revenue service in 1984 and quickly became one of the best-selling ever.


63,500 lb Thrust Class

The CF6-80C2 high-bypass turbofan engine combines a proven core with the latest technical innovations to offer the highest reliability, longest life, and lowest fuel burn in its thrust class. Technologies from a variety of research and development programs (including the GE/NASA Energy Efficient Engine program) have been incorporated into the CF6-80C2 design, such as advanced cooling techniques to improve overall efficiency, advanced clearance control, and aerodynamic modifications of blades and vanes. CF6* technology advances, such as a low emissions combustor and advanced high-pressure turbine, maximize customer value in the 21st century. The engine entered revenue service in October 1985 and has consistently demonstrated the lowest specific fuel consumption of any large commercial transport engine in its thrust class. Currently certified on 14 widebody aircraft models and with 16 ratings, the CF6-80C2 has received FAA 180-minute Extended Range Operations (ETOPS) approval for A300, A310, 747, and 767 aircraft, offering route structuring flexibility and added economic benefits.