SHADOW HAWK U.S. Air Force Staff Sgt. Andrew Gibson scans the terrain for training targets from an HH-60 Pave Hawk helicopter during a fixed forward firing mission over the Nevada Test and Training Range, June 25, 2010. Gibson, a flight engineer, is assigned to the California Air National Guard's 129th Rescue Squadron at Moffett Field, Calif. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 153990-R-ZUV62-745.jpg Photo Gallery