to Provincetown, Massachusetts, training submariners, conducting diving experiments, and practicing underwater warfare tactics. During April and May 1921, she visited the Naval Academy at Annapolis, Maryland and the United States Military Academy at West Point, New York. After conducting almost seven months of submarine instructions at New London, Connecticut, she arrived at Hampton Roads on 7 September 1922 for submarine flotilla operations in Chesapeake Bay. Subsequently, K-7 decommissioned at Hampton Roads on 12 February 1923. She was towed to Philadelphia on 23 August 1924, struck from the Naval Vessel Register on 18 December 1930, and sold for scrap on 3 June 1931. Notes References External links United States K-class submarines World War I submarines of the United States Ships built in San Francisco 1914 ships Ships built by Union Iron Works