Laminar Flow Stirling Engine

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This is just a test engine to establish what configurations run best.

A morning to build and a day of adjustments to flywheel, choke, regenerator to get going.

It seems to take off and race now and again, but decelerates quickly after about 10 seconds (I think the cold end gets too hot and needs fins).

It nearly went in the bin on more than one occasion.
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