I just spent the last couple days flying with Larry Driskill at the Little Rock S.M.A.L.L. fly-in and noticed that he & I both run nothing but black nylon 5x3 Cox props! We were talking about how much magic Bill Atwood designed into that prop way back in the early 60's.

I run mine at full diameter on the modified sport Tee Dees and Larry clips his down as needed to get those howlin' VA's of his into the stratospheric rpm range that makes him happy. No fancy work on the tips as far as I could tell....just a clean, square cut. He put on a few demo flights of his u/c combat Litehawks with a good VA on the front and yes, that little prop do be hookin' up!! Most of the sport r/c flyers there had never seen anything like it. UNBELIEVABLE rpm, speed and maneuverability![X(] His r/c converted Litehawks were AWESOME as well.

Digger was there with his Mig RCU design contest entry and couldn't get a successful hand launch on it with it's Norvel .061 and APC 5.7x3. It kept digging furrows of dirt every time due to poor low speed thrust. We talked about it and I gave him a (guess what) Cox black 5x3 and voila! Easy hand launch, no sweat. He said the top speed was down but the hand launches were tons better.