It Was 8 Feet Longer Than Big Boy — And Illegal On 90% Of The Tracks
Автор: American Ironworks
Загружено: 2026-01-24
Просмотров: 3155
The Union Pacific "Big Boy" is famous for being the largest steam locomotive in history. But technically, that isn't true.
In 1939, the Pennsylvania Railroad unveiled a machine that was 8 feet longer, significantly faster, and designed by a fashion icon. The PRR S1 was the "Bullet" of the future—a 140-foot streamlined giant that ran 60mph on a treadmill at the World's Fair.
But when the fair ended and the S1 hit the real tracks, engineers realized they had made a massive calculation error. Unlike the Big Boy, the S1 couldn't bend. It was a 6,000-horsepower rigid brick that destroyed station platforms, derailed on curves, and was eventually banned from 90% of the railroad network.
This is the story of the most beautiful failure in American industrial history—a locomotive that was too long to live.
#trains #bigboy #engineering #steamlocomotive #prrs1 #railroadhistory #mechanicalengineering #industrialhistory
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