CNS Simpson (SS-21)
In January 1961, Spot was towed to Pearl Harbor for modernization in preparation for transfer to Chile. The Chilean crew reported on board later in the year for training and on 12 January 1962, Spot was loaned to that government under the Military Assistance Loan Program. She was renamed CNS Simpson (SS-21), in honor of Chilean admiral Robert Winthrop Simpson (1799–1877). The submarine arrived at Chile 23 April 1962.
On 1 August 1975 the submarine was sold outright to Chile, and struck from the US Naval Register. In 1980, the Simpson was used extensively by director Kinji Fukasaku in the disaster film Fukkatsu no hi. She was deleted by the Chilean Navy in 1982.
Read more about this topic: USS Spot (SS-413)