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.
|Versions||-5B1 / -5B2||-5B3||-5B4||-5B5 / -5B6||-5B7||-5B8 / -5B9|
|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|
|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|