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SKYMECHMAN A38X 1:24 Cutaway Turbofan Engine Model Kit is a buildable 1:24 aircraft-engine display that exposes fan, compressor and turbine stages thr..

TOYAN FS-B400 14cc Flat-Four Boxer Nitro Engine is a compact working H4 platform with a horizontally opposed layout, four-stroke nitro operation and p..

TOYAN FS-V800WGPC 28cc OHV Working V8 Engine Kit is a buildable 1:10 OHV V8 designed for buyers who want visible multi-cylinder mechanics and real min..

V12 Electromagnetic Engine Model with Transparent Acrylic Frame is a transparent low-voltage V12 demonstrator with twelve coordinated electromagnetic ..

Working Multi-Stage Centrifugal Steam Turbine Model is a compact machined-alloy teaching model that demonstrates continuous rotary output through mult..

Working Vertical Single-Cylinder Steam Engine Model is a compact finished metal mechanism that exposes the piston, connecting rod and flywheel of a tr..

CISON 44cc Small-Block V8 Working Engine Model targets buyers searching for a working V8 engine model with a clearly identifiable architecture and a p..

Desktop All-Metal Stirling Engine DIY KitA compact self-assembly heat-engine model for mechanical learning and desktop demonstrations.Confirmed operat..

Full-Metal Hit & Miss Internal Combustion Engine ModelA governor-controlled four-stroke model that demonstrates the characteristic hit-and-miss operat..

Full-Metal V-Twin 2-Cylinder Engine Build Kit 217PCSAn electric motor-driven V-type twin-cylinder assembly model with visible mechanical transmission...

Hero's Engine Full-Metal Aeolipile Steam ModelA compact demonstration of the bladeless radial steam turbine associated with Hero of Alexandria.Confirm..

Hot-Air Stirling Electricity Generator with Colorful LEDA balance-style metal Stirling generator with visible flywheel transmission and multicolor LED..