U.S. Air Force airmen, 820th RED HORSE Squadron airborne flight, parachute into a drop zone from a C-130 Hercules Oct. 4, 2011, at Nellis Air Force Base, Nev. The 820 RHS and 6th Combat Training Squadron Airmen perform airdrop missions to stay current on training and certifications, enabling them to perform jump missions and operate their own drop zones.