MTH - Premier Freight Cars - Funnel Flow Tank Car - O Scale 3 Rail - Case Quantities Required

Until the 1950s, the typical railroad tank car consisted of a tank strapped to a full underframe, similar to the frames of most other cars, and the maximum capacity was about 12,000 gallons. But in the second half of the century, tank cars underwent a fundamental change as the tank itself took on the dual role of carrying the load and supporting the car. "Frameless" or stub-sill tank cars became the norm, featuring larger-capacity tanks and just a stub frame at each end for attaching the trucks.