Stock: In Stock
Stirling Vacuum Tractor Engine Model is a metal tractor-shaped external-heat model combining a large flywheel, exposed linkage and rolling chassis for..
-51%
$195.99 $401.78
Stock: In Stock
Vacuum Flame-Licker Engine Model with Wood Base is a compact atmospheric engine that admits flame-heated air and uses the resulting pressure differenc..
-51%
$58.79 $120.52
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Discover vacuum, flame-licker and atmospheric engine models that use external heat and pressure changes to produce visible flywheel motion. Review fuel, materials, dimensions and hot-surface precautions.