This chassis is designed to carry various RTR and kit bodies available for this class of engine, which performed shunting, banking, freight and general run-around duties for the GWR.
 
There's specific fixing arrangements aimed at the Lima model, which can be superdetailed to produce a powerfull and imposing locomotive, but the chassis can be easily adapted to suit the Wills whitemetal offering.
 
The design includes a custom-designed gearbox which, coupled to a large motor, will provide ultra-realistic operation across the speed range, with components for full compensation provided.