Kitfox Tuft Testing, Episode 2 with vortex generators

A second vid now with vortex generators installed along the leading edge upper surface of the wing, 7% cord aft of the leading edge on my Kitfox 2. Sequence is takeoff, climbout, accelerate to cruise airspeed, then a sequence of stalls. Main difference from previous vid is that I can't get the stall to progress out to the tip with vg's installed and it occurs 5 mph slower (30 vs 35 mph). Also, the flexing of the fabric noted on the first vid doesn't appear here. I did tighten the fabric a little with a heat gun but think most of this is due to smoothing of the boundary layer caused by the vg's.

Category:

Autos & Vehicles

Tags:

• kitfox
• kitfox tufts
• tufts