BETHLEHEM STEEL 100-TON 3-BAY HOPPER - UNION PACIFIC #36255 - N Scale. The Bethlehem Steel 100 Ton Three- Bay Hopper Cars became popular in the 1960’s as they were able to carry very large coal loads. Bachmann 100 Ton Hopper Cars come in a variety of colors and road names. Each car is fully assembled with a removable coal load. Features include; Highly Detailed Painted Bodies with Precision Graphics (where applicable), Blackened Machined Metal Wheels with RP 25 Contours, Magnetically Operated E-Z Mate Couplers, Non-magnetic Blackened Brass Axles with Needle-point Bearings, Celcon Trucks, and Added Weight for Optimum Tracking Performance