Athearn 15521 HO Scale 45' Trailer Penner International 6604 Train Set - HO Scale or Android mobile device

or Android mobile device

Burlington Northern "Supporting Our Troops" BN #1991 [Bluetooth]

so these are a completely new group of cars for your layout

and the ratchet and pawl

Athearn 15521 HO Scale 45' Trailer Penner International 6604 Train Set - HO Scale or Android mobile deviceAthearn 15521 HO Scale 45' Trailer Penner International 6604 Trailer On Flat Car (TOFC) has been in service since the 1940s when it was originally developed to load truck trailers onto flat cars to streamline service and minimize transferring cargo from boxcars to trailers. In the early 1980s, after the railroads were deregulated, TOFC service exploded in North America. The railroad's ability to adjust haul rates to be competitive with trucking meant