REFLECTOR: Vortex generators

[Jeff Barnes]

Hi Guys, 
 
   For VG success/failure stories, could everybody state whether they have TE fances and whether you have/don't have lower winglets ?  
 
   Jean Prudhomme built w/o lower winglets, then marveled at his better low end aileron control when he put the lowers on. That's when the factory shipped everybody (with fast builds anyway) their lower winglets. Function over fashion. 
 
   Jean also pioneered the VGs and raved about them.   
 
 
Thanks,
 
Jeff Barnes

--- On Sun, 3/29/09, Tom <tomcat05 at comcast.net> wrote:

From: Tom <tomcat05 at comcast.net>
Subject: Re: REFLECTOR: Vortex generators
To: reflector at tvbf.org
Date: Sunday, March 29, 2009, 5:13 PM

Steve--could you try posting that photo again. I'm just curious how
you've got them placed with only 9 VGs.
Also, does anyone know if the factory VGs come in clear or only in white?? thx
Tom

My V was very hairy on short final, almost no response from the ailerons.
I covered one wing with wool 'tufts' and went flying with a video
camera in the chase a/c.
They say every picture tells a story - at low (approach) speed, the tufts
forward of the aileron (upper wing surface) stood up on end, perperdicular to
the airflow - the ailerons were flopping around in a vacuum.

I made my own VGs from some white, angle plastic from the local hardware store
and put about 9 VGs on each wing (see attached photo) and the respose on short
final is firm and responsive.

I would not consider taking them off.

fwiw

Steve


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