Steamboat Mini by Rainer Radow

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6.01 Engine Requirements -- first thaughts

A small steamboat also needs a small steam engine. Because my steamboat Mini should be also simple, I would like to intend no Stephenson gear. In it are simply too many links and bearings which are in this scale stressed with to big charges and need a lot of care and servicing during operation.

Because a small boat also gets a small screw, one will have to turn the engine with more than 300 rpm. Then from this speed a down gear of the pumps makes sense. Once because of the noise development and on the other hand also because of the better efficiency. I imagine in addition a cog wheel or worm gear in a closed gear box with oil as seen in older photos.

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© of all items by Rainer Radow, Hannover, Germany.
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