REFLECTOR: Vortex generators

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I put my own VG's on the main wing only, so I can't give any advice on 
canard VGs.

On the main wing, with no real aileron authority at low speed, tuft 
testing also revealed some spanwise flow.
Therefore I oriented my VGs as accurately as I could, parallel to the 
aircraft centerline.
At cruise speed, they would have little or no vortex generating effect.
But at low speed, when the airlow follows a path more toward the wing 
tips, the VGs 'trip' the airflow causing vortecies.

Well, thats my theory at least, and so far it has been my experience 
that this approach works.

As for the VGs themselves, I purchased a length of plastic 1"x1" 'L' 
angle about 8 foot long. I cut short lengths about 1  1/4" with snips, 
trimmed to shape and cleaned up with a sanding board and attached to the 
wing with silicone.

Not rocket science but it works for me - Steve

Scott Derrick wrote:
> As ken says, the factory has a template set for placing the VG's.  I
> believe you normally get a set of  factory  VG's with the templates.  5
> years ago I convinced them to sell me the templates, sans VG's for a
> reduced price.  Maybe you can do the same..   Most of their cost was in
> the placement engineering and testing so the reduction in price wasn't
> enormous, which was fine by me.
>
> Personally, I wouldn't  install them without the factory templates. 
> They ran the numbers and tested that placement.  Maintaining the lift
> ratio between the canard and main wing is paramount and must be
> maintained to prevent a main wing stall.
>
> Scott
>
> KMis178813 at aol.com wrote:
>   
>> Tom
>>    The factory has a template your looking for. The VG's that you can
>> get from them come with a template as a kit. The VG's don't cost that
>> much, knowing were to put them    priceless. Sounds like a Master card
>> commercial.
>>      Ken
>>  
>> In a message dated 3/27/2009 9:24:59 P.M. Eastern Daylight Time,
>> tomcat05 at comcast.net writes:
>>
>>     Thx Scott--this was the link I forgot to add:
>>
>>     http://stolspeed.com/stolspeed-vortex-generators
>>
>>     They seem to be better than the factory ones I've seen. If I go this
>>     route is there a template available somewhere for a Velocity??  Tom
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