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The Stirling engine "John" is a model replica of the machine Rider-Ericsson Hot Air Pump and immediately available as a material kit. The parts kit contains a price of 179 euros to build and operate all necessary parts and detailed instructions and drawings. The flywheel is 80mm in diameter and is already preturned. The baseplate is 255mm long and 120mm wide and is also included.


The material kit of the stirling engine "John" is designed according to the well-known principle of Bengs Modellbau. All milled parts are prepared in a way that they just have to be deburred and drilled - if necessary. The turning parts are raw. The flywheel is preturned and milled that far that it can be finished even on a turning lathe.

Base plate: 255mm x 120mm
Flywheel: 80mm
Total height: 120mm
Working piston: 18mm
Displacer: 16mm

For the construction of the material record Stirling engine "John" is a small lathe (min. Opti D180 x 300), a small drill and a gas burner required for soft soldering of small parts. Otherwise, is still hand tools, which should be in every "steam engine workshop" (Taps M2, M3, M5x0, 5 and M8x0, 75 cutting dies M2 and M3, M5x0, 5 and M8x0, 75 Reamer 2H7, 3H7, 5H7, 6H7, Files , drill bit) needed.

-Finish-machined milled
-Raw material for the turning parts
-Milled and roughly turned flywheel
-Wood base (oak)
-Material for the burner
-Material for the cooling water pump
-All necessary screws, nuts, ball bearings and O-rings
-John Stirling engine-building plan drawings (10 sheets) and german instructions (4 sheets)