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Rider-Ericsson hot air pumping engine castings - stock code 9848

Castings, drawings and construction article for a quarter size Rider-Ericsson hot air pumping engine.

Not a common engine in the UK - the castings come from the USA - we've had a couple of part-built engines and one complete example in the last twenty years. There are some pictures in the archive showing what the thing looks like when finished.

wheel material Flywheel aluminium, 9 inch diameter