190401-N-TS621-1011 BREMERTON, Washington (April 1, 2019) A prototype hull-climbing robot conducts a test survey of the hull of the Seawolf-class attack submarine USS Connecticut (SSN 22) in a dry dock at Puget Sound Naval Shipyard and Intermediate Maintenance Facility (PSNS & IMF). The hull climber robot is the result of a partnership between PSNS & IMF and the Naval Undersea Warfare Center Division, Keyport that sought to design a system able to provide a faster, safer and more cost-effective method of completing required hull inspections on U.S. Navy submarines. (U.S. Navy photo by Jeb Fach/Released)