Chief Master Sgt. Amanda Stift, 413th Flight Test Group superintendent, gives a thumbs up in preparation for an F-15 familiarization flight Dec. 18, 2018, at Robins Air Force Base, Ga. With a career as a KC-135 boom operator, this was Stift's first time flying in a fighter jet. (U.S. Air Force photo by Jamal D. Sutter)