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''Yamato 1'' is a boat built in the early 1990s by Mitsubishi Heavy Industries, Ltd at Wadasaki-cho Hyogo-ku, Kobe. She uses magnetohydrodynamic drives (MHDs) driven by liquid helium-cooled superconductors and can travel at 15 km/h (8 knots). ''Yamato 1'' was the first working prototype of its kind. She was completed in Japan in 1991, by the Ship & Ocean Foundation (later known as the Ocean Policy Research Foundation). The ship, which includes two MHD thrusters, which have no moving parts, was first successfully operated in Kobe harbour in June 1992. An MHD works by applying a magnetic field to an electrically conducting fluid. The electrically conducting fluid used in the MHD thrusters of ''Yamato 1'' is seawater. In the 1990s, Mitsubishi built several prototypes of ships propelled by MHD systems. Despite projected higher speeds, these ships were only able to reach speeds of 15 km/h. Today ''Yamato 1'' is on display at the Kobe Maritime Museum. ==References== * (Operation of the Thruster for Superconducting Electromagnetohydrodynamic propulsion Ship "YAMATO 1" ) ((HTML mirror )) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Yamato 1」の詳細全文を読む スポンサード リンク
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