CRUISING COBRA U.S. Navy sailors aboard the amphibious dock landing ship USS Comstock watch as an AH-1 Cobra helicopter assigned to Marine Medium Helicopter Squadron 163 lifts off from the ship in the Pacific Ocean, Dec. 15, 2010. Comstock, part of the Boxer Amphibious Readiness Group, Combat Logistics Battalion 13, and the 13th Marine Expeditionary Unit, are underway off the coast of Southern California participating in certification exercise in preparation for deployment in early 2011. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 506007-E-VPO15-838.jpg Photo Gallery