USS Triton (SSRN-586)

USS Triton (SSRN-586) was a nuclear-powered radar picket submarine of the United States Navy and the only member of her class. Built by the Electric Boat Division of General Dynamics at Groton, Connecticut, she was launched on 19 August 1958 and commissioned in 1959. She was the only Western submarine powered by two nuclear reactors, and at commissioning she was the largest, most powerful and most expensive submarine yet built. On her shakedown cruise in early 1960 she became the first vessel to circumnavigate the Earth submerged, in Operation Sandblast under Captain Edward L. Beach Jr. Her radar picket role was overtaken within about two years by carrier-based airborne early warning aircraft, she was converted to an attack submarine in 1962, and she was decommissioned on 3 May 1969, the first American nuclear submarine taken out of service.