Schienenzeppelin

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This “rail zeppelin” from 1930 could have profoundly changed transportation if it weren’t for that huge unprotected propeller on its rear. Built by the German rail company Deutsche Reichsbahn, the Schienenzeppelin was powered by a 46-liter MBW V-12 engine, allowing the train to jet along at 120 miles per hour (max 140 mph) with 600 horsepower via its ash propeller.