USS Charr ( SS - 328 ) USS " Charr " ( SS / AGSS - 328 ) , a " Balao " - class submarine , was a ship of the United States Navy named for the charr , a trout of the waters of northwestern North America . SS - 328 , originally designated " Bocaccio " , was renamed " Charr " on 24 September 1942 and launched 28 May 1944 by Electric Boat Co . , Groton , Conn . ; sponsored by Mrs . W . F . Orkney ; and commissioned 23 September 1944 , Commander F . D . Boyle in command . First war patrol , December 1944 – March 1945 . Pacific - bound , " Charr " cleared New London 5 November 1944 , and reached Pearl Harbor 9 December . On 30 December , she was bound for action waters , as she sailed on her first war patrol off the northeast coast of Indo - China . On 29 January 1945 , daring to lie at anchor in broad daylight for 4 hours one mile ( 1 . 6 km ) off the coast , " Charr " sent two men ashore in a rubber boat to rescue a downed aviator . A second rescue mission came at the close of her patrol , when she escorted the badly damaged Dutch submarine HNLMS " Zwaardvisch " through the Java Sea and Lombok Strait s to Fremantle , Australia , where the two submarines arrived 3 March . Second war patrol , March – May 1945 . After refit , " Charr " cleared on her second war patrol , cruising in the Flores , Java , and South China Seas , and along the southern coast of Taiwan . She sailed for part of the patrol in coordination with and , and with them conducted an epic 4 - day chase of the Japan ese cruiser " Isuzu " and her three escorts . Finally , early in the morning of 7 April 1945 , " Charr " maneuvered into firing position to find " Isuzu " down by the stern and listing , evidence of successful attack by " Gabilan " . " Charr " fired a spread of torpedoes , scoring three hits to send the cruiser to the bottom . Three days later , 10 April 1945 , " Charr " made contact with another target , a coastal freighter , which she sank on the surface by gunfire . The submarine then headed on for a dangerous assignment , calling for intricate maneuvering , when she laid a minefield off Pulo Island on 14 April and 15 April . She put in at Subic Bay from 20 April to 24 April to reload torpedoes , then sailed on to patrol off Formosa on lifeguard duty , during which she rescued one downed pilot . Third war patrol , June – July 1945 . After refitting at Subic Bay from 21 May to 14 June 1945 , " Charr " put out on her third war patrol , cruising in the Gulf of Siam with three other submarines . At this late date in the war , targets were few , for " Charr " ' s sister submarines , as well as air and surface forces , had broken the back of Japan ' s navy and merchant fleet . The wolf pack however , did find a target in the " I - 351 " on 15 July . After " Charr " and the other wolfpack members had aided in cornering the Japanese submarine , sent her to the bottom . Post - war service . " Charr " remained at Fremantle from 26 July to 29 August 1945 , then sailed for repairs at Pearl Harbor and training at Guam until 30 January 1946 when she reached San Diego , her newly assigned home port . From this port , she made simulated war patrols to the Far East in 1947 and 1948 , operating along the West Coast at other times . On several occasions , she carried members of the Naval Reserve on 2 - week cruises , and assisted with training for briefer periods from 1949 through July 1951 when she entered Mare Island Naval Shipyard for a " Fleet Snorkel " conversion which streamlined her appearance and equipped her with a snorkel , thus enhancing her underwater cruising range . With her conversion completed 19 November 1951 , she prepared for overseas deployment , and on 26 March 1952 , she sailed to support United Nations forces in Korea , conducting patrols throughout the Far East . She returned to San Diego 2 October 1952 for local operations , which continued to include occasional training cruises for the Naval Reserve . " Charr " again cruised in the Far East from 11 June to 7 December 1954 , training air and surface forces in antisubmarine warfare , and conducting patrols . On 9 November , she played hostess to Chiang Kai Shek on his first cruise in a submarine . Upon her return to the west coast , she resumed her normal operating schedule , and did not return to the western Pacific again until 22 March 1957 to 14 October 1957 . A highlight of her next period of service was an exercise with ships of the Canadian Navy in the fall of 1958 , which was followed by preparations for her 1959 Far Eastern cruise , completed between 6 May and 28 October . Through 1960 , she continued operations from San Diego . " Charr " was reclassified an Auxiliary Submarine , AGSS - 328 , in 1966 . She was decommissioned , 28 June 1969 , struck from the Naval Register , 20 December 1971 , and sold for scrap , 17 August 1972 . Honors and awards . Of " Charr " ' s three war patrols , the second was designated a " successful war patrol " , for which she received one battle star .