USS Nautilus (SSN-571) USS Nautilus (SSN-571) USS "Nautilus" (SSN-571) was the world's first operational nuclear-powered submarine and the first submarine to complete a submerged transit of the North Pole on 3 August 1958. Sharing names with Captain Nemo's fictional submarine in Jules Verne's classic 1870 science fiction novel "Twenty Thousand Leagues Under the Sea", and named after another that served with distinction in World War II, the new atomic powered "Nautilus" was authorized in 1951, with laying down for construction in 1952 and launched in January 1954, attended by Mamie Eisenhower, First Lady of the United States, wife of 34th President Dwight D.
UC3 Nautilus UC3 Nautilus UC3 Nautilus is a privately built Danish midget submarine. It was built over a three-year period as an art project by Peter Madsen and a group of volunteers, and cost approximately US$200,000 to build (1.5 million DKK). The submarine was Madsen's third submarine design, and at the time of launch on 3 May 2008, was the largest privately built submarine in the world. On 11 August 2017, "Nautilus" sank in the bay of Køge, in what investigators determined was a deliberate act. The following day, Danish police had the submarine salvaged and brought onto land as part of