160805-N-SB201-009 GROTON, Conn. (Aug. 5, July 2016) Los Angeles Class, fast-attack submarine, USS Hartford’s (SSN 768) new commanding officer, Cmdr. Matthew Fanning salutes Hartford’s former commanding officer, Cmdr. Thomas Aydt in the presence of Commodore, Submarine Squadron Four, Capt. John McGunnigle. onboard USS Hartford in its homeport of Naval Submarine Base New London. (U.S. Navy Photo by Chief Mass Communication Specialist(SW/AW) Steve Owsley/Released).