.jpg "Kc-135a) F-108 (cfm-56 Aircraft Engine")
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 18,500 to 34,000 pounds-force (82 to 150 kilonewtons). CFMI is a 50–50 joint-owned company of Safran Aircraft Engines (formerly known as SNECMA), France, and GE Aviation (GE), United States. 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, SNECMA manufactures the fan, gearbox, exhaust and the low-pressure turbine, and some components are made by Avio of Italy. The engines are assembled by GE in Evendale, Ohio, and by SNECMA in Villaroche, France. The completed engines are marketed by CFMI. Despite initial export restrictions, it is one of the most common turbofan aircraft engines in the world, in four major variants.
The CFM56 first ran in 1974. Several fan blade failure incidents were experienced during the CFM56's early service, including one failure that was a cause of the Kegworth air disaster, and some engine variants experienced problems caused by flight through rain and hail. Both these issues were resolved with engine modifications.