Perry Mick wrote:

Paul:

If you can scale the Mazda down for lower HP, why not
scale it up for a higher displacement, lower RPM, direct-
drive aircraft engine?  There must be some benefit to
retaining the high RPM as even the Curtis-Wright engines
were high RPM and geared down.

--
Perry J. Mick
Duckt N7XR
http://www.ductedfan.com

I think that is what GM had in mind for the Chev Vega rotary engine.
The combustion chamber shape and function gets worse and worse as you 
scale the rotors up.  Also the rotor bearing loads are mV^2/r.
Better to go to three or four rotors. Turbo if you want more HP
at lower RPM.

Paul Lamar
 
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