-missy-

no pressure then! the firebox is all over the place! Tapers everywhere...

The only boiler I tried was a #2 based in the plans for Nightingale in GWRJ because I plan to build a Bird series Bulldog at some point. I should really get it printed and see whether it looks okay, or not. If it is okay then I will know how to model and cast the rest. The software I use makes the boiler pretty straightforward but the belpaire fire boxes are not. If we can manage to provide castings for boilers and fireboxes then we will be a long way to creating whatever GWR locos we like :-)

You should have consulted the Captain first. He can roll a tapered boiler on a parsnip without the need for drawings.