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In 1974, This French Train Flew More than 430 Km/h on Air Cushion Before Being Buried without Explanation.

Summary by SciencePost
On March 5, 1974, Jean Bertin's Aerotrain reached 430.4 km/h on air cushion, setting an unprecedented world record. Yet, only 26 days after the signing of a commercial contract, the French government mysteriously buried the project without public explanation. A ghost viaduct still remains in Loiret, witness to a technological trajectory that France could have taken. More
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On March 5, 1974, Jean Bertin's Aerotrain reached 430.4 km/h on air cushion, setting an unprecedented world record. Yet, only 26 days after the signing of a commercial contract, the French government mysteriously buried the project without public explanation. A ghost viaduct still remains in Loiret, witness to a technological trajectory that France could have taken. More

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SciencePost broke the news on Monday, June 15, 2026.
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