Lt. Col. Matthew Hayden, the 56th Fighter Wing chief of safety and pilot attached to the 61st Fighter Squadron, inspects his F-35 Lightning II before entering the cockpit and beginning takeoff procedures Feb. 2, 2016, at Luke Air Force Base, Ariz. Hayden became the first Luke AFB pilot to achieve 500 flight hours in an F-35. (U.S. Air Force photo/Airman 1st Class Ridge Shan)