Yamato 1

Yamato 1

"Yamato 1", is a boat built in the early 1990s by Japanese conglomerate "The Mitsubishi Group" through their subsidiary company Mitsubishi Heavy Industries, Ltd at Wadasaki-cho Hyogo-ku, Kobe. It uses a magnetohydrodynamic drive, driven by a liquid helium-cooled superconductor, and can travel at 15 km/h (8 knots).

The "Yamato 1" was the first working prototype of its kind. It was completed in Japan in 1991, by the Ship & Ocean Foundation (later known as the Ocean Policy Research Foundation). The ship was first successfully propelled in Kobe harbour in June 1992. Yamato 1 is propelled by two MHD thrusters that run without any moving parts.

MHD works by applying a magnetic field to an electrically conducting fluid. The electrically conducting fluid used in the MHD thruster of the Yamato 1 is seawater. [ [http://www.sciencecareersweb.net/PSU2DE/Newsletter/Sept2002.pdf#page=5 "Silent Running"] - Penn State Science newsletter]

In the 1990s, Mitsubishi built several prototypes of ships propelled by an MHD system. These ships were only able to reach speeds of 15 km/h, despite higher projections.

References

* [http://www.mesj.or.jp/mesj_e/english/pub/english/pdf/mv23n011995p46.pdf Operation of the Thruster for Superconducting Electromagnetohydrodynamic propulsion Ship "YAMATO 1"]
* [http://www.sof.or.jp/ship/nf/yamato_1/ Development of a Super-Conducting Propulsion Ship (1985-1998)]

External links

* [http://www.skewsme.com/mhd.html Magnetohydrodynamic and the Mitsubishi Yamato]
* [http://www.sanu.ac.yu/English/Shipbuilding/Tema4.htm MHD Propulsion]


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