F-16 Viper Demo Team arrive for COMACC qualification
A member of the F-16 Viper Demonstration Team assists with the after flight checks at Joint Base Langley-Eustis, Va., Jan. 31, 2017. Members of the team travel with the demo team pilots on their missions to ensure the aircraft and other mechanical aspects are up to par at all times. (U.S. Air Force photo by Senior Airman Kimberly Nagle)