180718-N-LW591-062 GROTON, Conn. (July 17, 2018) Senior Chief Yeoman (Submarine) Scott Jones discusses the pilot and co-pilot roles in maneuvering the ship while it's submerged with Adm. Christopher Grady, commander of U.S. Fleet Forces Command, during a tour aboard the Virginia-class fast-attack submarine USS North Dakota (SSN-784) during a visit to Submarine Base New London. (U.S. Navy photo by Mass Communication Specialist 1st Class Steven Hoskins/Released)