What Happened to the Army's 570-Foot Nuclear Train?

In 1962, the US Army rolled out the longest vehicle ever built: a 572-foot, 54-wheel land train they planned to power with a nuclear reactor. Then it vanished. This is the story of R.G. LeTourneau's Overland Trains, the machines built to cross the Arctic without a single road, and why the most ambitious vehicle the Army ever made was left to rust in the desert. Enjoyed this documentary? Subscribe for more deep dives into the world's most powerful machines: 👉 Construction Legends:    / @constructionlegends   ☕ Support our work: https://buymeacoffee.com/Construction... We walk through the whole land-train story machine by machine: the fatal fire that bankrupted an Alaska trucker, the DEW Line radar bases that had to be supplied across roadless tundra, the 572-foot TC-497 with its four jet turbines and memory steering, the documented plan to run it on an onboard nuclear reactor, why heavy-lift helicopters killed it, and where its giant tires ended up, bolted to the biggest monster truck on Earth. 📌 CHAPTERS 00:00 A Machine Built to Burn 01:09 The Man and the Electric Wheel 07:40 The Sno-Freighter and the Deadly Arctic 15:46 The Army's 570-Foot Giant 20:01 The Nuclear Plan and the Fall MORE FROM CONSTRUCTION LEGENDS ▶ The Machine That Killed Its Inventor (Diesel):    • The History of the Diesel Engine — The Mac...   ▶ The Machines That Built the World Trade Center:    • The Machines That Built the World Trade Ce...   ▶ The Greek Trick That Made Mount Rushmore Possible:    • The Greek Trick That Made Mount Rushmore P...   SOURCES U.S. Army, Yuma Proving Ground: https://www.army.mil/article/263508 Sno-Freighter (overview): https://en.wikipedia.org/wiki/Sno-Fre... Overland Trains research (Mark Moore): https://overlandtrains.com #construction #heavymachinery #engineering #coldwar #military #overlandtrain #letourneau #documentary #arctic #megaproject