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

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.\


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Comment by Jay Parker on April 22, 2010 at 5:52am didn't post the website I put in my message so here it is:
Comment by Jay Parker on April 22, 2010 at 5:50am
Hank, There is a very good study done by a fellow in Austraila who experimented with VGs on his Savannah, which is a close copy of the 701 but closer in size to the 750. I read his whole website and the results were very impressive. Check out his website for stats and videos and see if it answers some of your questions about using VGs. I think I am convinced now that I'll probably drop the slats when I build mine and just use the VGs.

Comment by Hank Optland on April 22, 2010 at 3:52am
I wonder how much weight saving there is if the slats are not fitted to the CH-750?
Comment by Bob Simmons on February 23, 2010 at 9:49pm
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.
Comment by Hank Optland on February 22, 2010 at 11:38pm
Does anyone know of a CH-750 owner who has replaced their slats with VGs? Was it successful?
Comment by Jay Parker on February 4, 2010 at 8:10am
I found a pdf file the placement of vertical vortex generators up the rudder, but it doesn't explain it's use or characteristics. 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. 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.

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