Nautilus (Verne) from seawater) is the craft's primary power source for propulsion and other services. "Nautilus" is double-hulled, and is further separated into water-tight compartments. Its top speed is . Its displacement is submerged. In Captain Nemo's own words: "Nautilus" uses floodable tanks in order to adjust buoyancy and so control its depth. The pumps that evacuate these tanks of water are so powerful that they produce large jets of water when the vessel emerges rapidly from the surface of the water. This leads many early observers of "Nautilus" to believe that the vessel is some species of whale, or perhaps a
French submarine Nautilus (1930) to prevent the risk of the submarine surfacing in the middle of enemy waters. French submarine Nautilus (1930) The French submarine "Nautilus" was a built for the French Navy in the mid-1930s. Laid down in August 1927, it was launched in March 1930 and commissioned in July 1931. "Nautilus" was disarmed at Bizerte, Tunisia and captured there on 8 December 1942 by Italian forces. On 31 January 1943, it was sunk at Bizerte during an Allied air raid. "Nautilus" was raised but not repaired and finally stricken on 12 August 1947. long, with a beam of and a draught of