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
HMS Nautilus (1914) her life with the 1st Submarine Flotilla at Portsmouth as a depot ship and later as a battery charging vessel. She was renamed N1 in June 1917. Following decommissioning she was sold for scrap to John Cashmore Ltd on 9 June 1922 and broken up at their yard at Newport, Wales. "The Royal Navy Submarine Service, A Centennial History", by Antony Preston. HMS Nautilus (1914) HMS "Nautilus" was a Royal Navy submarine. She was the largest submarine built for the Royal Navy at the time. She was also the first to be given a name. "Nautilus" was designed in response