The Atlas HO Master ACF Pressureaide Centerflow Hopper Car 893296 models the ACF Industries Pressureaide Center Flow covered hopper car manufactured by ACF Industries (Founded in 1899 as American Car and Foundry). Using the original Center Flow (No center sill to restrict product flow) platform, ACF enhanced the design by including a pressure differential to speed the unloading of dry bulk commodities. The Pressureaide covered hopper cars are still in production- ACF Industries' successor American Railcar Industries continues to manufacture these very popular cars to this day.
Atel: Atel Leasing Corporation is a division of the Atel Capital Group. Based in San Francisco, CA, Atel was founded in 1977 to own and manage a wide variety of assets, including low tech assets, for large investment grade corporations. Atel owns a fleet of railcars that it leases to corporations that ship by rail who wish to limit the capital which would be required to own their own railcar fleet.