Flight engineers check ride
U.S. Air Force Staff Sgt. Alex Stoll, 6th Air Refueling Squadron flight engineer, sorts paperwork during preflight on a KC-10 Extender Dec. 17, 2019, at Travis Air Force Base, California. The 6th ARS aircrew flew to Scott AFB, Illinois, to update training and guidance on aeromedical evacuation procedures for KC-10 Extender aircraft. (U.S. Air Force photo by Tech. Sgt. Traci Keller)
Tech. Sgt. Traci Keller
24.0-70.0 mm f/2.8
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