Senior Master Sgt. Scott Scurlock, 370th Flight Test Squadron superintendent, explains features of a KC-135 to Senior Master Sgt. Mark Mercer, 413th Flight Test Group NCO in charge of standards and evaluations, Sep. 11, 2018, at Edwards Air Force Base, Calif. The 370th FLTS is a geographically separated unit of the 413th FTG that performs operational flight tests to aircraft assigned or on loan to the 412th Test Wing. (U.S. Air Force photo by Jamal D. Sutter)