Hi JD,

Funny, I was just going through this forum looking for oversize Kaos builds. I built one back in the early 80s. I believe it had a 82" or 84" span, and powered by a piped 90s. I'm just finishing a 72" Top Flight Contender and then ready to start another big Kaos, this one with a 76" span and 78" fuse. Will fly with a ST 1.4, and weight will be under 10 lbs. The Kaos was a wonderful flying bird, but not overpowered as I remember. Lately have built several large light planes, so learning a lot about light builds.

The Kaos was so fondly remembered that I built a similar plane around 2003. It has a 82" span and a OS 1.08. Also thinned the airfoil to about 16%. The new Kaos will be 14% at the root and 12% at the tip. The thinner airfoils require a lot less power for large loops, yet still fly fantastic.