The original Bridi Kaos 40 had a 52" wingspan. It was really on the small side for the radios/servos of the day. Ditto the Bridi Dirty Birdy 40 wood kit.
That is an understatement. I built a Bridi Super Kaos 40 last winter and it was very
tricky fitting 4 servos in the radio compartment. There was just barely enough
clearance between the aileron torque rods and the elev/rudder servos.
I had to get a bit creative.
I powered it with a TT46 Pro which was also a very tight fit. I actually
had to length the nose about a 1/2 inch to accomodate that motor.
The plane flies great and is very fast. It did not come out nose heavy
at all. I was able to balance it fine without adding weight.
Another guy in our club has the Tower ARF Kaos. His is powered with
an OS 46AX and flies very much like mine. Speed is about the same
but his has a slightly slower roll rate due to the larger wingspan. 55 vs 52 inches.
The ARF fuse is also slightly wider and longer as well.
One thing about the ARF...dont try to reshrink that covering. It melts at a quite
low temperature and doesnt seem to want to shrink at all. His plane is slowly
being recovered in Monokote.
Mike Hammer