Here are files for a British Railways Roadrailer and adaptor bogie drawn full size so scale to suit your model.
The Roadrailer wagons were trialled in the early 1960s to offer a way of having goods vehicles which could go by rail in bulk then convert to road vehicles to be hauled by lorry tractor units as articulated vehicles. This bimodal system was longer lasting in other countries and the UK project was short lived.
The system comprised the Roadrailer vehicle which could be attached to an adaptor bogie at the front and further Roadrailer vehicles could be attached to the rear of each other to form a train.
A model kit was made years ago by Scalecraft / Peco but these are now difficult to get hold of. A full Roadrailer train would be very expensive to create nowadays using these kits.
Here is my version which has a few more rivets and which will need a few additions of plasticard for mudflaps etc if wished. If scaled for 4mm/ft the wheels need to be around 10mm diameter.
Transfers are available from Cambridge Custom Transfers for all the liveries and branding carried by these interesting vehicles.
Enjoy
Jonny
| Roadrailer.stl | 16.4MB | |
| Roadrailer_Adaptor_Bogie_Chassis.stl | 716.0KB | |
| Roadrailer_Adaptor_Bogie_Superstructure.stl | 650.1KB |
