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 (train) on weekdays only. Starting in autumn 1983 the westbound train ran as a TEE on Mondays through Thursdays only and was replaced by a two-class "Rapide" on Fridays. Initially, "Jules Verne" was usually hauled by one of SNCF's diesel-electric locomotives. This class was later replaced by SNCF dual voltage, Class BB 22200 electric locomotives. Prior to that change, made in autumn 1983, the "Jules Verne" had been the last train in the TEE network to be regularly diesel-hauled. However, Belgian diesel locomotives continued to be used occasionally on TEE trains between Brussels and Amsterdam. The train's original formation of rolling