The CFM56 success story
CFM International, a 50/50 joint company between Safran Aircraft Engines and GE, develops, produces and markets CFM56® engines, which now power some 13,400 single-aisle commercial jetliners worldwide. Renowned for its unparalleled reliability and low cost of ownership, the CFM56 is the best-selling engine in the history of aviation.
CFM56-5B PIP: the engine of choice for the A320ceo family
Developing 21,600 to 33,000 pounds of takeoff thrust, the CFM56-5B is the only engine that can power every model in the Airbus A320ceo family. The CFM56-5B PIP (Performance Improvement Program), the latest production configuration for the engine, features a number of improvements, notably to the core and fan blades, to give operators a 0.5% reduction in fuel consumption and a 1% cut in maintenance costs. The CFM56-5B PIP is fully interchangeable with other CFM56-5B engines and modules. Designed to minimize the total cost of ownership of the A320ceo family, the CFM56-5B offers exceptional reliability.
| TECHNICAL CHARACTERISTICS | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Versions | -5B1 / -5B2 | -5B3 | -5B4 | -5B5 / -5B6 | -5B7 | -5B8 / -5B9 | |||
| Applications | A321 | A321 | A320 | A319 | A319 | A318 | |||
| Max. takeoff thrust (lbf) | 30,000 - 31,000 | 33,000 | 27,000 | 22,000 - 23,500 | 27,000 | 21,600 - 23,300 | |||
| Temp. at flat rating (F°) | 86 | 86 | 111 | 113 | 111 | 113 | |||
| Bypass ratio | 5.50 | 5.40 | 5.70 | 6 / 5.90 | 5.70 | 6 / 5.90 | |||
| Max climb thrust (lbf) | 6,420 | 6,420 | 5,705 | 5,705 | 6,420 | 6,420 | |||
| Length (in) | 102.4 | 102.4 | 102.4 | 102.4 | 102.4 | 102.4 | |||
| Fan diameter (in) | 68.3 | 68.3 | 68.3 | 68.3 | 68.3 | 68.3 | |||
| Number of fan/low-pressure/high-pressure compressor stages | 1+4+9 | 1+4+9 | 1+4+9 | 1+4+9 | 1+4+9 | 1+4+9 | |||
| Number of low-pressure/high-pressure turbine stages | 1+4 | 1+4 | 1+4 | 1+4 | 1+4 | 1+4 | |||
| Dry weight (lbs) | 5 250 | 5 250 | 5,250 | 5,250 | 5,250 | 5,250 | |||
