Early on, I decided that I would not tackle the boiler until I had an engine that would run on compressed air. However, on realizing that the boiler/burner was probably easier to construct than the engine, I have pursued
them. After all, if I can’t raise sufficient steam to make the whole thing run, then there is no point in going any further.
Only time will tell whether this project ever gets
off the ground, or is that onto the rails.