
.040 Opposed 2-Cylinder, 2-Cycle Aero Engine
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John Swartzwelder fabricated several small multi-cylinder aircraft engines from commercially available Cox .049, .020, and .010 cc model airplane engines.

.098 Opposed 2-Cylinder, 2-Cycle Aero Engine
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John Swartzwelder fabricated several small multi-cylinder aircraft engines from commercially available Cox .049, .020, and .010 cc model airplane engines.

.098 Vertical 2-Cylinder, 2-Cycle Aero Engine
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John Swartzwelder fabricated several small multi-cylinder aircraft engines from commercially available Cox .049, .020, and .010 cc model airplane engines.

’32 Ford Coupe Tether Car
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This ’32 Ford tether car measures about 7 inches wide, 4.25 inches high, 13 inches long, and weighs 6.25 pounds.

“Dominator” Model Aircraft Engine
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To achieve more power, Noel Jensen added two more cylinders and produced this flat 4-cylinder opposed engine dubbed the “Dominator.”

“Green Dragon” Model Airplane Engine
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The Green Dragon burns methanol with castor oil mixed in for lubrication on spark ignition. The engine is 7″-long, 5″-wide, and 6″-high.

“Green Dragon” Model Automobile Engine
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This two-cycle, air-cooled Green Dragon automobile engine was named for its green crackle paint finish. This engine is 7″-long, 5″-wide, and 6″-high.

“KEN” Single-Cylinder, Air-Cooled Marine Engine
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From approximately six sets of castings made by Ken Brennerman in the mid 1930s, this is the only known surviving engine.

“Little Dominator” Model Aircraft Engine
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A rotary valve, twin-cylinder, air-cooled engine named “Little Dominator.” The 1″-bore and 1.1″-stroke engine turns a 16/6 propeller at 6,000 rpm.

“Maxse T-Seven” 7-Cylinder Radial Model Airplane Engine
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Maxse Tayler used the piston and cylinder assemblies from the commercially manufactured Saito 120 model airplane engines to build this 7-cylinder radial.

“Micro Cirrus” V8 Engine
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This 1/12 scale “Micro Cirrus” engine runs on methanol with glow ignition, and is among the smallest multi-cylinder 4-cycle engines in the world.

“Rasant MK III” Diesel Radial Model Airplane Engine
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This “Rasant MKIII” Diesel engine operates like an inline engine. It is 2.5″-long, 3″-wide, and 2″-high.