U.S. Air Force 1st Lt. Champ, 71st Fighter Training Squadron T-38 Talon pilot, completes his preflight checklist before take-off at Joint Base Langley-Eustis, Va., Sept. 14, 2017. The T-38 pilots act as enemy combatants to fight against the F-22 Raptor pilot, simulating a real world battle. (U.S. Air Force photo by Airman 1st Class Tristan Biese)