CFM565B

The CFM56-5B is a high-bypass turbofan engine developed by CFM International, a 50-50 joint venture between GE Aviation and Safran Aircraft Engines. It is a variant of the CFM56 family, which has been in production since the 1970s. The CFM56-5B is designed to power narrow-body aircraft, with a thrust range of approximately 20,000 to 30,000 pounds-force (89 to 133 kilonewtons).

The engine features a high-bypass ratio, which helps to reduce fuel consumption and noise levels. It has a two-spool design, with a fan and a low-pressure compressor driven by a single-stage high-pressure turbine. The engine is known for its reliability and durability, with a mean time between failures (MTBF) of over 1,000 hours. It has been used to power a variety of aircraft, including the Airbus A320 family, Boeing 737, and Embraer E-Jets.

The CFM56-5B has undergone several upgrades over the years to improve its performance and reduce its environmental impact. These upgrades include the introduction of the CFM56-5B1, which features a new fan and a more efficient combustor, and the CFM56-5B2, which includes additional noise reduction measures. The engine is also being developed for use in hybrid-electric propulsion systems, as part of the Clean Sky 2 program.

The CFM56-5B is a widely used and reliable engine, with a strong track record in the aviation industry. Its high-bypass design and advanced technology make it an attractive choice for operators looking to reduce fuel consumption and emissions.