Goldstirling

Most all the Goldstirling engines share the same parts. In other words, they are just configured different. So, for instance, the power piston is the same on over a half a dozen different models as are most of the other parts. In some regards this is the easiest engine to build. It has the fewest parts. It is shown with curved geometry but it could be made with rectangular geometry.

 The mostly full size plans for this engine are $30. When ordered with another set the price is only $50. This offer includes the quad-rocker engine 

The Vertical Stirling has a Power Take off shaft (PTO) whereas most the other engines do not. This engine is mounted on a parabolic dish and runs on solar power.
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