Yeah, the secret to the Kaos was the great wing. I built 2 Bridi Kaos'
back in the 70's and three different pattern planes with Kaos wings with different
moments, tail designs, etc and they all flew good. The thick airfoil with
a blunt leading edge made them fly at a more constant speed and slow
speed approaches were superb. The last one was lost because of battery failure
and I built the replacement with a laminar flow airfoil like on the Eyeball and it
just wasn't as good.

tommy s