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
Jules Verne ATV were built by several different aerospace companies; the docking and refuelling systems were produced by RSC Energia in Russia, the pressurised section was assembled by Alenia Spazio in Turin, Italy, and the propulsion system was constructed by EADS Astrium in Bremen, Germany. The propulsion system was integrated with the pressurised compartment in Bremen, before the spacecraft was moved to the European Space Research and Technology Centre (ESTEC) in Noordwijk, the Netherlands, for testing. It arrived at ESTEC on 15 July 2004. "Jules Verne" was launched into low Earth orbit atop the maiden flight of the Ariane 5ES carrier rocket. Lift-off