RV 10 MM Solid Works renderings
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   Paul Lamar ...No rotor no motor.

One other little item, looks like a Guru or Hurley build-up engine. Two
center plates and no intermediate housing. I really like the idea of a 4
rotor take apart e-shaft PP center bearing support rotary for a high
power aircraft engine!
Bill

It is a cheater 3 rotor :)