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 nearly 4,500 strong. The engine/airframe combo 737 entered revenue service in 1984 and quickly became one of the best-selling ever... just as its successor, the 737NG.
Today, CFM offers upgrade kits for the CFM56-3, which extends life and reduces maintenance on this compact lightweight workhorse. The CFM56-3 Advanced Upgrade Kits deliver:
|Takeoff Conditions (sea level)|
|Max. takeoff (lb)||20,000||22,000||23,500|
|In-Flight Performance (installed) (35,000 ft-Mach=0.80-ISA)|
|Max climb thrust (lb)||4,860||5,260||5,540|
|Overall pressure ratio at max. climb||27.5||28.8||30.6|
|Max. cruise thrust (lb)||4,650||5,040||5,370|
|Fan diameter (in)||60||60||60|
|Basic dry weight (lb)||4,276||4,301||4,301|
|Initial development contract||March 1981||737-400 entry into service||September 1988|
|First engine to test (FETT)||April 1982||737-500 entry into service||March 1990|
|First flight on B707 FTB||January 1983||Final production engine shipped to Boeing||December 1999|
|CFM56-3 certification||January 1984||CFM56-3 world record for high time on wing||38,736 hours|
|737-300 entry into service||December 1984|
When Boeing selected the fledgling engine company to provide the sole powerplant for its 737-300/-400/-500 series of aircraft in 1981, both companies optimistically predicted they would sell about 400 airplanes; 4,496 engines and 1,989 airplanes later, the CFM56-3-powered 737 is a story for the record books.