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Old 11-22-2014, 09:03 AM   #5 (permalink)
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My 50 year old Honda with a 50cc engine, about 3 cubic inches, produces 4.8 HP. As Neil mentioned the high specific power of rotaries is due to the 3 combustion events per revolution, same as a 6 cylinder conventional design.

The number of revolutions of the crankshaft is not the same as the number of revolutions of the rotor.

There are better solutions.

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