REFLECTOR: Vortilions and/or VG's?

Scott Derrick scott at tnstaafl.net
Tue Jul 19 11:48:53 CDT 2005


I thought Vortilons were a flight critical item on all swept wing canard
airplanes?

Scott

> Ron,
>
> When I visited Velocity for my demo flight, I asked
> why the standard aircraft had the VG's and Vortilons
> installed and the XL didn't. The answer that I was
> given, was that their standard aircraft was used
> mostly for flight training, and that the flight
> characteristics and control at slow airspeeds were
> better with VG's and Vortilons installed. I was told
> that the VG's on the canard lowered the stall
> airspeed. I can't remember how many knots that I was
> told it helped, seems like it was in the one to three
> knot range. I was talking to Paul Baribault.
>
> Andy Ellzey
>
> --- Jack Sheehan <j.f.sheehan at larc.nasa.gov> wrote:
>
>> Ron,
>> i can't speak for the 173 but on my XL-RG which I
>> believe is the same
>> wing (if you are a LW) I do not have either VG's or
>> Vortilons. i Have
>> never flown the airplane with them and have not
>> gotten around to
>> installing them to find out if there is a
>> difference. Airplane flies
>> great as is.
>> --
>> Jack Sheehan
>> Executive Director
>> National Consortium for Aviation Mobility (NCAM)
>> Visit the following sites
>> http://www.ncam-sats.org, http://www.sats2005.com,
>> http://sats.nasa.gov
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