This is an O scale depressed center flatcar modeled after the Kasgro KRL 163201 heavy duty depressed center flatcar. This O scale railcar has 16 axles with a scale length of 142 feet over the couplers. The model is 36 inches long over the couplers. The depressed center portion of the model is a scale 32 feet long. The car uses MTH roller bearing trucks.
Note: Prototype dimensions and diagrams of other KRL cars are available on the KRL website. The prototype KRL 163201 is a 16 axle railcar that has a load limit of 900,000 pounds. See also a dimensional diagram attachment.
This car is one of my favorites.
Note: An HO scale Epoxy model of this same car is shown as a comparison.
HO scale model shown below: