A Castle !?!?
Some time ago, probably last year, at a club roadshow, we commented that there were no GWR live steam locos on the club layout. After some thought, I decided to try and convert an A3 into a Castle, based around an old Hornby Dublo cast body. I've finally made a bit of progress, so here are some photos etc.
I started the tender first, but the Hornby boiler is too tall/wide to fit into the Dublo casting. I bought some 25mm copper tube (Hornby boiler is 32mm) and added a set of live steam parts to convert it into a smaller/longer boiler that stood a chance of fitting inside the Dublo tender once I had machined it out as much as I dare.

I haven't bothered with a new frame to space the wheels correctly, but just cut down the Hornby plastic and threw away the trailing axle. It wil…










A couple more photos to show the current state of play. I fitted the superheater in place, leaving the pressure relief valve sticking out the back. Having measured it now, I will actually need to lose 15.5mm from its length. If the pressure relief valve looks a bit short, it's not a trick of the camera lens; I took 3mm off its height.