Tangent Scale Models is proud to offer the 3600 cubic foot Bethlehem Steel design open quad hopper - as delivered to Union Pacific - as the fourth all-new model in their HO scale product line. These cars represent UP’s largest fleet of coal hoppers in company history. First produced in 1974 by Bethlehem Steel as UP class H-100-10, production of a majority of the fleet occurred in UP’s Albina Shops in Portland OR between 1976 and 1981. Production of this important fleet ended with the H-100-23 class, after UP placed more than 6,900 of these “quad” hoppers in service in the rapidly-growing Western low-sulfur coal market. As usual, Tangent Scale Models is the first manufacturer to offer this unique model in HO Scale plastic! With these cars wandering far beyond just UP rails in both unit and carload services, consider adding some of these replicas to your layout or collection.