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"Glassworks" hot air engine, glass cylinder, missing displacer - stock code 3603

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A "Glassworks" hot air engine by PM Research. This is a new, factory machined kit - the design features pyrex glass displacer and power cylinders to show the inner workings when running. This engine has lost the pyrex displacer cylinder - the enterprising among you could make one (either in glass which is quite tricky or stainless like our "Super Vee" engine which is rather easier), alternatively PM Research can supply the spare part. The engine runs on ball bearings.

Mounted on a hardwood base.

Base 9 x 6 inches
Flywheel 2 1/2 inch diameter