Senior Airman Jacob Ellwood checks all systems as he readies a HH-60G Pave Hawk helicopter for a mission Nov. 6, 2010, at Moffett Federal Airfield, Calif. Airman Ellwood is a flight engineer assigned to the California Air National Guard's 129th Rescue Squadron. (U.S. Air Force photo/Staff Sgt. Kim E. Ramirez)