I have been given an unfinished steam engine – it is definitely a Simplex but the gauge is 3.5 inch. Do drawings exist for a 3.5 inch version of the Martin Evans Simplex? It is complete apart from a boiler and plate work. I have heard this version is called a Simplex Minor – is that true?
My next step is to find or make a boiler for it. But without drawings I do not know what boiler I need.
All help appreciated. JR