Hi Rob,
The props we run are 55 or 54" Diameter,, so we dont really have the supersonic tip speed problem. Mind you we do have other problems with our props.. mainly resonance in the blades at the resonant frequencys (about 1200, 2400, and 3600 RPM) so we really need to be careful to stay away from these ranges.
Come out to Reno this year! I might race the eze if time permits.
