Micro Vortex Generators- CH 750STOL

by Bill Bancroft

Aug 3, 2020

Has anyone ever changed the “stock” location of the micro vortex generators on the elevator of the 750 STOL???

I’m checking to see if I should use double-sided carpet tape and experiment with location or just rivet them on permanently now.

Anyone that changed the location...what are the new measurements or location??? What performance numbers changed?
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  • up

    John Austin

    There's an extensive and detailed post with pics located here:http://www.zenith.aero/group/stolch750/forum/topics/elevator-mod-ht...

    Aug 4, 2020

    • up

      Bill Bancroft

      Thanks for the info! I just might install the HT fences too. I know the Super 701 built by Jon Humberd has them as well. Great idea!

      I am also going to be using the 750SD rudder as the 750 STOL rudder seems too small. I believe it looks better proportionally with the bigger rudder. Roger told me there is one other guy out there doing the same thing with the bigger rudder too.
      2

      Aug 4, 2020

      • up

        John Austin

        The benefits from the fences will be modest but noticeable - the tip extensions provide the dramatic improvement! I completely assembled the plane, then broke it down for paint. My neighbor, who has done paint and body work for decades and painted airplanes before, painted it for me in his paint booth. I then reassembled the plane in my hangar. It's the Gecko Green paint code used for Jeeps and Dodge Chargers.
        John

        Aug 4, 2020