VGs on the CH-750...... wings, elevator or rudder?

by Jay Parker

Feb 3, 2010

I have been reading various articles about how VGs help in the flying characteristics and landings of various aircraft and I plan on using them on the elevator of the CH-750 as Zenith suggests. But I have a question for any aeronautical engineers out there regarding VGs and if they would have any affect or be of any aid should they be applied to the plane’s rudder and if they were applied, would they be placed along the leading edge or someplace else? I’m just curious to find out if they might aid a plane in cross wind conditions, streamlining, in turns or if they might serve in some other beneficial or hampering way if they were applied there.\ Jay

  • Jay Parker

    I found a pdf file the placement of vertical vortex generators up the rudder, but it doesn't explain it's use or characteristics. http://www.flyfbi.com/Black_Max_Air_Wave_VG_Manual.pdf They show the typical placement along the leading edge of the main wing and a different placement of VGs from Zenith's placement on the elevator. I wonder if micro VGs would aid in some way the landing characteristic of the CH-750 further if placed on the leading edge of the Junker Flaperons when flaps are used in landings? They say that placing VGs or "Dimple Tape" on a propeller can increase speed and gallons per hour statistics. http://www.lessgasmoremiles.com/ I saw one while browsing the internet of micro VGs that were itched into the plane's propeller, but I can't seem to relocate that article. But I still don't know what the affects of using VGs or Dimples along the rudder might have, unless it reduces drag.

    Feb 4, 2010

  • Hank Optland

    Does anyone know of a CH-750 owner who has replaced their slats with VGs? Was it successful?

    Feb 22, 2010

  • Bob Simmons

    There are only a few 750s flying, so I find it highly unlikely that anyone has replaced their slats with VGs yet. I have thought about it myself, but had no real concrete plans to do so. I'd like to have more cruise speed and I don't need extreme STOL, but so far I don't see the potential for enough gain in cruise speed to make the change worthwhile.

    Feb 23, 2010