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Construction: Aluminum 1-piece
crankcase, piston, cylinder head
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Bore: 23.0mm (0.906")
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Stroke: 18.4mm (.724")
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Horsepower: 1.2 BHP at 15,000
RPM
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Distance from remote needle to
end of crankshaft: 4.5" (114mm)
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Distance from center of engine
to drive hub: 2.0" (51.2mm)
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Distance from center of engine
to end of crankshaft: 3.0" (76.3mm)
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Height from crankcase bottom
to top of cylinder head: 3.3" (84.7mm)
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Height/crankshaft center to
top of cylinder head: 2.7" (69mm)
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Width including mounting ears:
1.9" (48mm)
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Width not including mounting
ears: 1.2" (32mm)
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Width between mounting holes
same side: 0.69" (17.5mm)
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Width between mounting holes
opposite side: 1.6" (40.5mm)
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Width between muffler mounting
holes: 1.4" (36mm)
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Width of exhaust opening: 1.1"
(29mm)
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Height of exhaust opening:
0.3" (7mm)
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Diameter of muffler body: 1.3"
(33.5mm)
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Angle of muffler in relation
to engine: 4°
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Weight: 272g (9.6oz without
muffler)
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Crankshaft Thread Size: 1/4-28
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Recommended Props: Break In:
11x6
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Trainer and Sport Models:
11x6, 11x7
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Scale Models: 12x5, 12x6
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Practical RPM Range: 2,000 -
16,000 RPM (This engine will not turn
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this many RPM on the ground)
RPM curve is when the engine unloads.
