Drop and give me 20!! Published June 13, 2016 By Christopher Ball 412th Test Wing Public Affairs EDWARDS AIR FORCE BASE, Calif. -- Racers tackle mass pushups during the Fitness Dash at the Rosburg Fitness Center running trail June 8. Members were challenged with several cross-fit style challenges during the varied terrain of the 1.2-mile running course which includes stretches of loose sand. Organizers asked the participants for feedback after the event, and are looking at making it a quarterly challenge.