" "crank shaft" speed is different than  the rotation speed of the
revolving
triangular rotor". Correct. The gear ratio cannot be changed. The engine
won't work and the rotor will jam in the housing.
Please read the info on the web site below.

You could always do something like this :)

What is wrong with a planetary gear box? They work great and last
forever.

Paul Lamar

Chris Cosman wrote:

Now that's funny.  Talk about vibration!
Chris C.
microcosman.com/aircraft

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