REFLECTOR: VG's

[Scott Derrick]

I think there is a definite misunderstanding of what VG's do and what a liminar flow wing needs.

Mark Magee <edjonesbrady at gmail.com> wrote:

>All,
>I think David frames the problem properly from the original thread (italics
>added):
>-------------------------------------------------------------------------------------------------------------
>On 6/6/2012 11:06 PM, David Ullman wrote:
>I now have about 27 hours on 444DX.  Getting things sorted out.  I have been
>to 10,500 ft and over 200kts (in a dive).  I have done both low and power-on
>mushes.  I cant call them stalls as it doesn't.  Around 50 kts it just
>mushes.  I still have roll and yaw control all the way down.  Overall the
>plane is very easy to handle at any speed.  I hate the thought that this may
>be due to the vortex generators. * I just cant intellectually get past the
>fact that I have put vortex generators on a laminar flow surface.*
>
>--------------------------------------------------------------------------------------------------------------
>
>I can't either. A laminar flow surface and wings are designed to -avoid-
>turbulent flow of all types, particularly vortexes.
>One reason they go so fast.
>In my mind applying VG's to a Velo is like the old F-4's flying around full
>throttle with the drag chute deployed in flight.
>
>Mark
>
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