191108-N-ON977-0188 NORFOLK (Nov. 8, 2019) U.S. Sen. Tom Carper of Delaware speaks with Capt. Brian P. Hogan, left, Capt. Martin J. Muckian, middle, commodore of Submarine Squadron Six and Cmdr. Matthew Horton, right, following a change of command ceremony for the future Virginia-class fast-attack submarine Pre-Commissioning Unit (PCU) Delaware (SSN 791) held at Naval Station Norfolk in Norfolk, Virginia, Nov. 8, 2019. During the ceremony, Horton relieved Hogan as commanding officer of PCU Delaware. The 377-foot long, 7,8000-ton Delaware is a Virginia-class fast-attack submarine and is scheduled to be commissioned in the spring of 2020. (U.S. Navy photo by Mass Communication Specialist 2nd Class Alfred A. Coffield/Released)