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The Aérotrain was a Hovertrain developed in France from 1965 to 1977. The lead engineer was Jean Bertin. The goal of the Aérotrain was similar to that of the magnetic levitation train: to suspend the train above the tracks so the only resistance is that of air resistance. Consequently, the Aérotrain could travel at very high speeds without the technical complexity and expensive tracks of magnetic levitation.