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USS Seawolf (SSN-575)

Ship
USS Seawolf (SSN-575) was the third ship of the United States Navy to be named for the seawolf, the second nuclear submarine, and the only US submarine built with a liquid metal cooled, beryllium-moderated nuclear reactor, the S2G. Wikipedia
Launched: July 21, 1955
Length: 338′
Built: 1953
Decommissioned: 30 March 1987
In commission: 1957–1987
Propulsion: S2G, replaced by S2Wa in 1960, geared steam turbines, two shafts, approx. 15,000 shp (11,000 kW)