Service History
James K. Polk sailed to Charleston, South Carolina in September 1966 to load Polaris ballistic missiles for her initial deterrent patrol. After completion of her shakedown, she operated on strategic deterrent patrols in the Atlantic Ocean and completed 19 of them between September 1966 and May 1971.
In July 1971, James K. Polk began her first overhaul at Newport News Shipbuilding in Newport News, Virginia, for nuclear refueling and conversion of her ballistic missile system to support the Poseidon C-3 ballistic missile. She completed her conversion in late 1972 and commenced a rigorous schedule of sea trials and exercises, culminating in the Demonstration and Shakedown Operation (DASO) of her Poseidon missile system, which tested her ballistic missile system and crew by requiring the launch of a Poseidon C-3 missile from the submarine.
James K. Polk resumed deterrent patrols in the Atlantic Ocean in May 1973 with her new Poseidon missiles. She conducted her second overhaul at Portsmouth Naval Shipyard at Kittery, Maine, after completing her 50th deterrent patrol in September 1981. She completed overhaul in 1983 and conducted seven more successful deterrent patrols.
James K. Polk returned to Portsmouth Naval Shipyard in January 1986 for a third overhaul after completing her 58th deterrent patrol. She departed Portsmouth Naval Shipyard in November 1988, then headed south for her post-overhaul DASO. In May 1989 she began her final series of Poseidon strategic deterrent patrols.
James K. Polk celebrated her 25th year of commissioned service in April 1991. She finished her 66th and final strategic deterrent patrol in August 1991.
Read more about this topic: USS James K. Polk (SSBN-645)
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