Retired U.S. Air Force Chief Master Sgt. of the Air Force Rodney J. McKinley holds on to an F-22 Raptor engine during a demonstration in the Hush House at Langley Air Force Base, Va., March 18, 2016. McKinley was introduced to the power of an F-22 Raptor engine and the newest technology that keeps them flying. (U.S. Air Force photo by Airman 1st Class Kaylee Dubois)