Over the years, flatcar designers have devised various means_of squeezing the most inside a loading gauge, with one of the most popular being the depressed center flatcar. Dropping the car floor down, until it almost touches the rails between the car's trucks, allows room for larger loads like the rocket and trailer depicted on this model.
 
Car features include an intricately detailed ABS body, metal wheels and axles, die cast 7-wheel trucks, operating die cast metal couplers, fast-angle wheelsets and needlepoint axles. Operates on O-27 curves.