This is my copy of Erik-Jan Stroetinga's Oscillating Steam Engine. I have converted the plans from Metric to English. I have made them available if anyone wants them. Erik-Jan has given me permission to repost them. My brother taught me how to make a lapping tool to size the bore of the steam engine accurately. I used a taper tap so the socket cap screw will cause the lapping tool to expand when it is turned in. If someone builds this engine from the "English Plans" could they contact me if there are any errors or problems they run into? If you successfully build the engine I would like to hear from you as well. Steam Engine Metric Plans Steam Engine English Plans

My Brother David machined all of the parts for his 1/4 scale continental 4 cylinder scale Aircraft engine

Wren Engine Parts

Wren Engine Parts October 4,2007

Wren jet engine Drawings

3d Drawing of Turbine Blade

Jet engine turbine blade

Wren Jet engine diffuser

Wren jet engine inlet guide vanes and turbine blade

David's own design of Nose Cones of our jet engine project. The one on the left is before detailing, straight from the CNC Mill.

David's Chenery 2 cylinder engine and parts.

David's own design of a 10cc glowplug 2 stroke.

Davids Forest Edwards 5 Cylinder Radial.

David's Scratch Built 1933 Kinner Sportster from Forest Edwards Drawings.

David's 1978 Jet Engine front and side views.

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