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Nautilus Class Submarine: Laid down, 14 June 1952, at Electric Boat Co., Division of General Dynamics Corp., Groton, CT.; Launched, 21 January 1954; Commissioned, USS Nautilus (SSN-571), 30 September 1954 Arrived at Mare Island in preparation for Decommissioning on 3 March 1980. Final Disposition; In May 1985 the boat was towed  back to Groton for use as a Museum, and was opened to the public on 11 April 1986 as a museum ship. Nautilus is located at the  Historic Ship Nautilus & Submarine Force Museum, NAVSUBASE, New London, Groton, CT. Nautilus is listed on the National Register of Historic Places, Ref. No. 79003652, and was designated a National Historic Landmark  on 20 May 1982. Specifications: Displacement, Surfaced: 3,533 t., Submerged: 4,092 t.; Length 323' 9"; Beam 27' 8"; Draft 18' 7"; Speed, Surfaced  22 kts, Submerged 20+ kts; Armament, 6 21" torpedo tubes forward; Heat source - Nuclear; Electrical Motor Propulsion - double  propeller. Complement: 11 officers, 100 enlisted.