n 1963, GATC introduced the 4180 Cubic Foot Airslide covered hopper to their catalog. Designed for shippers of such commodities as flour, starch, and sugar, these two-bay cars featured ten round loading hatches, and four outlets. As with their other Airslide designs, it featured their patented “Airslide” unloading system, which used pressurized air to aerate the special fabric lining of the bays, effectively fluidizing the commodity and allowing it to flow more easily during unload.

The Rivet Counter series Airslide 4180 Covered Hopper exemplifies railroad, road number, and era specific details. Features include four body styles, two different