The overland train or Alaskan land train are a number of means of transport built by LeTourneau in five versions in the fifties and early sixties of the twentieth century. Designed initially for the movement of goods on the snowy ground, they were later used in Alaska as a means of transport for military use by the United States. One of these, the TC-497 Overland Train MkII, with its more than 204 meters in length still holds the world record for the longest road vehicle ever built.

The first overland train was the model VC12 “Tournatrain” built in a single copy and tested by LeTourneau in February 1953. It consisted of a convoy composed of a tractor and three trailers for loading, each of the vehicles rested on two motorized axes for a total of 16 wheels, all drive. The convoy was pulled by a powertruck, driven by Cummins diesel engine VT-12 capable of delivering 500 hp gross, which fed the four electric motors placed one for each vehicle. After a few months of testing, the manufacturer decided to double the length by adding four trailers; to support the increased need for power on the powertruck was installed a second Cummins diesel engine, bringing the total gross power to 1000HP. Pretty impressive!

Watch this unique vehicle on the next few videos:

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