and in Hawaiian waters. She remained in the eastern Pacific during 1956 and 1958, but, during the spring of the latter year, was engaged in extended exercises off Alaska. Pearl Harbor In November 1961, Remora was transferred from San Diego to Pearl Harbor. The following year she underwent a seven-month Greater Underwater Propulsive Power Program (GUPPY-III) conversion which lengthened her hull by and her conning tower by five feet. Then, in 1963, she was employed to evaluate antisubmarine sonar in Hawaiian waters. In May 1964, she resumed a schedule of annual six-month WestPac deployments which she continued into 1969. Remora was one of the last diesel boats to receive the Navy Unit Commendation for "Meritorious Service for operations during the Summer and Fall of 1967." During a shipyard overhaul in late 1967 early 1968, Engine #1 was removed and replaced with a "Prairie Masker" system designed to mask her engines during snorkeling. In July 1969, Remora shifted home ports, from Pearl Harbor to Charleston, South Carolina. With the exception of one Mediterranean Sea cruise, from 16 February to 26 June 1970, she continued to operate out of Charleston, along the Atlantic seaboard, in the Caribbean Sea, and in the Gulf of Mexico, until decommissioned 29 October 1973 at Charleston. Greek service After decommissioning from US Navy in 1973, she was transferred to the Hellenic Navy as a sale, and recommissioned Katsonis (S-115). She served until 31 March 1993, when she was decommissioned. References External links Photo gallery at navsource.org Tench-class submarines Ships built in Kittery, Maine 1945 ships World War II submarines of the United States Cold War submarines of the United States Korean War submarines of the United States Tench-class submarines of the Hellenic Navy