Senior Airman Jonathan Case, 418th Flight Test Squadron Survival, Evasion, Resistance and Escape specialist and test parachutist, jumps during a parachute test April 10, 2012, with a new constant-wear back-style parachute that is intended to eventually replace the old parachute system equipped on the AC-130 Gunship. (U.S. Air Force photo/1st Lt. Jonathan Sepp)