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U.S. Marine Corps photo by Master Sgt. Ken Stephens Released/Released 110824-F-TL822-071.JPG
Aug 26, 2011
An ECO System engine washer is used to clean the inside of a CFM International CFM56 engine (F108 military designation) on a KC-135R Stratotanker at Scott AFB, Ill., on August 24, 2011. Washing the engine is expected to reduce the Exhaust Gas Temperature (EGT) margin by 5-6 degrees resulting in fuel savings and longer engine life. (U.S. AF photo by Master Sgt. Ken Stephens) (Released)
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