52' Center Depressed Flat Car - DESERT CAMOUFLAGE with MISSILE - HO Scale. Center Depressed Flat Cars are sometimes referred to as Heavy Capacity Flat Cars. These cars are equipped with an extra axle to support additional weight and the Center Depressed design allows the car to handle Excess-height loads. Bachmann's Center Depressed Flat Cars come with prototypical 3 axle trucks. Each car is fully assembled and features; Highly Detailed Painted Bodies with Precision Graphics E-Z Mate® Couplers, Celcon Trucks.