The CFM56 is a high-bypass turbofan engine developed by CFM International, a joint venture between General Electric and Safran Aircraft Engines. It is widely used in commercial aviation, powering various aircraft models, including the Boeing 737 and Airbus A320. Known for its reliability and fuel efficiency, the CFM56 has become one of the best-selling jet engines in history. First introduced in the 1970s, the CFM56 has undergone several upgrades and variants to enhance performance and reduce emissions. With over 30,000 engines produced, it has established a strong reputation in the aviation industry, contributing to the success of many airlines worldwide.