Comdr. Ralph G. Johns, Jr., in command. Assigned to SubRon 5, she operated along the west coast out of San Diego during the next year. She again decommissioned at Mare Island 13 August 1952 and began a GUPPY IIA overhaul and conversion to a snorkel submarine. Far East deployments Menhaden recommissioned 6 March 1953, Lt. Comdr. William R. Werner in command. She joined SubRon 3 at San Diego 12 June, and on 21 September she sailed for the Far East. Operating out of Yokosuka, she ranged the East and South China Seas until 11 February 1954; thence, she returned to San Diego 23 March. For the next year and a half she operated in the eastern Pacific where she participated in fleet readiness exercises and type training assignments. On 18 August 1955 she began her second deployment to WesPac where she joined and supported the ever-vigilant Taiwan patrol force. She returned to the west coast 17 February 1956. Menhaden completed six more deployments in the troubled waters of the Far East. As a unit of SubDiv 32, she cruised the western Pacific from Japan and Taiwan to the Philippines and Australia. She carried out surveillance and reconnaissance patrols off past and present areas of Cold War conflict from Korea to Vietnam. When not deployed in the western Pacific, Menhaden maintained a schedule of intensive readiness and alert exercises. Home ported at San Diego, she participated in numerous fleet and intertype exercises. In addition, she supported sonar school operations and provided at-sea training for members of the Navy's Submarine Reserve Force. Vietnam service and fate Early in 1968 Menhaden returned to the western Pacific. During a 6-month deployment she concentrated her operations in the waters off Vietnam. Later in the year she returned to the west coast where she continued to prepare for future "keeping-the-peace" missions. Menhaden was decommissioned, 13 August 1971, and struck from the Naval Register, 15 August 1973. In 1976, ex-Menhaden was towed from California to Washington to begin a new career as the "Yellow Submarine." The boat, stripped of her engines and painted yellow, was operated by the Naval Undersea Warfare Engineering Station in Keyport, Washington. Affectionately referred to as "The Hulk", she served as a remotely controlled, unmanned acoustic test vehicle capable of submerging to moderate depths in support of undersea weapons testing, and as a target ship to train Trident missile submarine crews off the