Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Thanks for the information, Stoker! That link is very helpful.

I believe this engine did have the drain valve (I called it a "blow-down valve"), but it got snapped off somewhere along the way. It appears now as shown in this shot from a different angle:

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So that would tend to swing it more into the 354/3 column, but measuring the flywheel, it measures an odd 81.62MM, which swings the pendulum back again! I'm smelling a Frankendoll... [ Guests cannot view attachments ]

The short chimney actually works out good for me, as the engine will just fit the shelf on which I plan to display it!

Paula