Bill Braack, Smoke-N-Thunder jet car driver, engages the afterburner at the beginning of his performance during Heroes Day at Davis-Monthan Air Force Base, Ariz., April 11, 2014. The jet car is capable of accelerating up to 400 miles per hour and races planes as part of his performance during air shows. (U.S. Air Force photo by: Cheyenne Morigeau/Released)