decommissioned, she was sunk as a target in SubSinkEx Project "Thurber" off San Diego on 21 February 1973. Some sources indicate that the sinking was by deliberate partial flooding to acquire acoustic data on submarine implosions. References External links Balao-class submarines World War II submarines of the United States Cold War submarines of the United States Ships built by William Cramp & Sons 1944 ships Ships sunk as targets Maritime incidents in 1973 Shipwrecks of the California coast