U.S. Air Force Chief Master Sgt. Kenneth Kunkel, 746th Expeditionary Airlift Squadron C-130 Hercules flight engineer, checks his headset during a C-130 Hercules pre-flight inspection Nov. 13, 2018, at Al Udeid Air Base, Qatar. Kunkel reached 10,000 flying hours Oct. 6, 2018, a number considered prestigious amongst military aviators. (U.S. Air Force photo by Tech. Sgt. Christopher Hubenthal)