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 space station at a distance of , despite a minor anomaly with the electronic systems controlling the spacecraft's engines. "Jules Verne" started its approach to the ISS at 14:19 UTC. At 15:57, it reached the S hold point and waited there for 90 minutes to conduct tests. The ISS crew then commanded the ATV to conduct hold and retreat manoeuvres. At 17:30, the ATV was commanded to perform an escape manoeuvre, propelling it away from the station. During Demo-Day 2, "Jules Verne" closed in to within of the International Space Station, after which the ISS crew simulated an abort. All