The third run of Trinity 5,660-cubic-foot capacity pressure differential (PD) covered hoppers has been released by Atlas Model Railroad Co. The modern freight car, based on former BLMA tooling, features freestanding details, screw-mounted trucks with 36" chemically blackened metal wheelsets, and body-mounted couplers.
The 5660 PD covered hopper was introduced in 1999 by Thrall Car Manufacturing Co. The design became part of the Trinity Industries (now TrinityRail) portfolio in 2001 when the Dallas, Texas-based company purchased Thrall. The car is still in production today. Approximately 4,000 covered hoppers have been built to this design.
Free-flowing products, such as flour, are transported in pressure differential covered hoppers. Sales literature from TrinityRail indicates that the discharge lines can be customized (aluminum, carbon, or stainless steel) to suit the commodity being transported.
The…