SEA KNIGHT UNCHAINED U.S. Navy seamen remove restraining chains, May 10, 2008, from a Sea Knight helicopter on the amphibious dock landing ship USS Harpers Ferry, which is part of the USS Essex Expeditionary Strike Group positioned to support Burmese victims of Cyclone Nargis and a tidal wave. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 171096-W-LAY18-123.jpg Photo Gallery