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For comparison, Amtrak's modern ACS-64 locomotive produces 72,000 pounds of tractive effort.

The result, Glancey writes, were lovingly cared-for locomotives that "ran like silent sewing machines", equal in acceleration and tractive effort to the first generation of diesels and electrics.

In the early attempts to design a trailer, it was found that too great tractive effort on the part of the truck was required if the trailer was patterned after older types with simply increased dimensions in all of its parts.

Let T = the tractive effort applied to the vehicle by any means.