That was the theory I remember hearing most often, back in the mid 70's...a big bubble type canopy causing disturbed airflow around the fin/rudder.

There were a couple guys who built a lot of Kaos's (probably 7 or 8 between 'em ) and they decided that the canopy of choice was the Wing Manuf. streamlined style or the jet fighter style...not the original big bubble type.

Another friend built a Kwik Fli III without a canopy at first, then added the stock canopy to test the theory...he said he thought the big bubble was "probably" what caused the "dance".

Another theory though was the thick wing tips (and possably the barn door ailerons ) of the constant chord wing causing the "dance" vs. the thinner tips of the tapered wing Kwik Fli...but I don't know about that? (I mean the Kaos has a tapered wing, aye!? )


I just started flying a Tower Kaos .40 with a Webra .50 but have yet to notice any wiggle...only have half a dozen flights on it...will have to look out for it next time