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Exactly, Logic!
heh, now you see the need for a muffler on mine. You could maybe run the exhaust underwater, like a conventional outboard. I wasn't nearly at that point yet, though. Just building the engine.
I've been building up little bits and pieces of information about high speed flash steam engines for years. Best description of the history and mechanics etc (of both small and large) is the book "Experimental Flash Steam" by Benford.
I have tons of past issues of Model Engineer the British magazine, dating back to 1890's. These racing hydroplane engines are an amazing historical topic to me. Just a handful of people have ever pursued it, but their innovations down through the decades (well century, actually) are really awe inspiring.
Anyway, the one I was building was to be a detuned version -- I thought about it as both a small outboard motor (I was gioing to use an old Elgin outboard motor I have as the lower unit) and as a small stationary generator for camping.
An alternative plan for a boat motor was to do it as a generator for an electric trolling motor rig.
I was thinking it would be really cool if you could use a supply of twigs and pine cones etc, found on shore as fuel, as you went.
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