This 52’ 6” Railgon gondola was built in the early 1980s to a new design developed by Trailer Train’s R&D department. The cars were 2,494 cubic feet in capacity and built to be heavy-duty and long lasting, carrying steel ingots, scrap steel and coiled steel. Trailer Train employed several manufacturers to build the nearly 4,000 GONX cars, including Greenville, Thrall, Pullman-Standard, and others.