Staff Sgt. Roberto Tejada-Najera, F-35A Lightning II Demonstration Team crew chief, prepares to launch a jet for a demonstration practice Feb. 20,2020 at Hill Air Force Base, Utah. Tejada is one of two seven-level dedicated crew chiefs assigned to the F-35A Demonstration Team, based out of the 388th Fighter Wing, Hill Air Force Base, Utah.(U.S. Air Force photo by Senior Airman Codie Trimble).