High Quality Content by WIKIPEDIA articles! The CFM International CFM56 (U.S. military designation F108) series is a family of high-bypass turbofan aircraft engines made by CFM International (CFMI), with a thrust range of 18,000 to 34,000 pounds-force (80 to 150 kilonewtons). CFMI is a 50–50 joint-owned company of SNECMA, France and GE Aviation (GE), USA. Both companies are responsible for producing components and each has its own final assembly line. GE produces the high-pressure compressor, combustor, and high-pressure turbine, and SNECMA manufactures the fan, low-pressure turbine, gearbox, and exhaust. The engines are assembled by GE in Evendale, Ohio, and by SNECMA in Villaroche, France. The completed engines are marketed by CFMI.