six-month deployment to the western Pacific as a unit of the United States Seventh Fleet, her first post-World War II deployment to the Western Pacific. She returned to San Diego on 6 November 1955,and subsequently trained off the United States West Coast. She deployed to the western Pacific for her second post-World War II Seventh Fleet deployment on 13 May 1957. She returned to San Diego on 8 November 1957 and resumed training activities. After overhaul at Hunter's Point Naval Shipyard in San Francisco from 7 July to 24 November 1958 and subsequent underway training, Raton made a third post-World War II deployment in the Seventh Fleet in the western Pacific from early March to mid-November 1959, participating in operations with forces of the Southeast Asia Treaty Organization (SEATO) and the Japan Maritime Self-Defense Force. In early 1960, Raton was engaged in local operations in the San Diego area, including evaluation of new sonar concepts and the training of Underwater Demolition Team personnel in covert reconnaissance. Auxiliary research submarine (AGSS-270), 1960–1968 On 1 July 1960, Raton was reclassified as an auxiliary submarine and redesignated AGSS-270. After a major overhaul at Mare Island Naval Shipyard from January to April 1961, she headed west for her fourth post-World War II western Pacific deployment with the Seventh Fleet on 3 July 1961, returning to San Diego on 19 December 1961. She spent 1962 in fleet training operations off the U.S. West Coast, providing services for air, surface, and submarine forces. On 9 April 1962, it was reported that a kite had snagged on Raton, and this incident was referenced in the Peanuts comic strip of 19 May 1962, wherein it is implied that the kite had belonged to the long-suffering Charlie Brown, whose problems with flying kites was a standard running gag of the strip. Raton′s fifth post-World War II western Pacific deployment, from January to June 1963, included participation in two major anti-submarine warfare exercises with U.S. and SEATO forces. Following an overhaul period from November 1963 to early March 1964, Raton deployed again to the western Pacific from 6 July to 23 December 1964, where she operated with naval forces of Thailand, the Philippines, and the Republic of China, under the Military Assistance Program. Raton engaged in local fleet and type operations in the San Diego area during 1965 and early 1966. In mid-April 1966, she got underwat for another tour