history. Halfbeak was awarded the Battle Efficiency "E" for 1966 and 1967 and held the "E" for Submarine Division 102 for 1968. Halfbeak was decommissioned and simultaneously struck from the Naval Register, 1 July 1971. She was sold for scrapping, 13 July 1972. References External links Balao-class submarines Cold War submarines of the United States Ships built in Groton, Connecticut 1946 ships