A view of the U.S. Navy "Los Angeles"-class nuclear-powered attack submarine USS "Louisville" (SSN-724) during routine hull maintenance and painting in the medium auxiliary repair dock USS "Arco" (ARDM-5) at the San Diego Submarine Base, California (USA). Sitting in front is Boatswain's Mate 3rd Class Curt L. Tucker, who worked on his chalk drawings during nights following his work shifts using a manlift to teer around the submarine's domes.