Main Page | See live article | Alphabetical index A Magnetohydrodynamic drive is a method proposed for propelling seagoing vessels using the electromotive force generated by passing electric current through seawater. Also known as a caterpillar drive for submarines, this was popularised in the book and movie The Hunt For Red October. To date, there have been no known production vessels using this method of propulsion. This article is a stub. You can help Wikipedia by fixing it. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.