Hi All

I've been working on a 20" carbon scale 109F/G blade system for my 80" composite 109. I see from the above post that you guys are turning 4 blades with an RCV 120. I just purchased an RCV 120, maybe I'll try running my blades on that instead of my OS 108 geared down to 1:71 to 1. Power on the 108 rated at 3hp and on the 120 at 1.89hp. I'll just try it.

Personally, I really would like to fly with a scale 3 blade, turning at 4500-5500 rpm, one will see the 3 blades in flight.