A U.S. Marine Corps prototype half-scale Ultra Heavy-lift Amphibious Connector (UHAC), created by Navatek Ltd. and the Office of Naval Research, exits the dock landing ship USS Rushmore (LSD 47) in the Pacific Ocean July 11, 2014. The Marine Corps Warfighting Laboratory sponsored a UHAC demonstration during the at-sea phase of the Rim of the Pacific (RIMPAC) 2014 exercise. RIMPAC is a U.S. Pacific Fleet-hosted biennial multinational maritime exercise designed to foster and sustain international cooperation on the security of the world's oceans. (U.S. Navy photo by Mass Communication Specialist 2nd Class Amanda R. Gray/Released)