vg question

[dgil]

Hello, has anyone had positive results(reduction in stall speed) using
vortex generators on a wing utilizing the RAF48 airfoil?

Thanks,
David

[Bob Olds]

(dgil) wrote in message >...
> Hello, has anyone had positive results(reduction in stall speed) using
> vortex generators on a wing utilizing the RAF48 airfoil?
>
> Thanks,
> David



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I don't know the numbers for my RV-4 airfoil,but my vortex generator
installation has lowered the stall speed 6 - 8 MPH,as near as I can
tell so far.
I like them .

Bob Olds RV-4
Charleston,Arkansas


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[JH]

Bob,
Does the decrease of 5 mph stall speed translate into a real decrease in
touchdown speed and did you install the VG's or did you have that done? I am
interested in seeing these.

Joe


"Bob Olds" > wrote in message
om...
> (dgil) wrote in message
>...
> > Hello, has anyone had positive results(reduction in stall speed) using
> > vortex generators on a wing utilizing the RAF48 airfoil?
> >
> > Thanks,
> > David
>
>
>
>
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****
>
> I don't know the numbers for my RV-4 airfoil,but my vortex generator
> installation has lowered the stall speed 6 - 8 MPH,as near as I can
> tell so far.
> I like them .
>
> Bob Olds RV-4
> Charleston,Arkansas
>
>
>
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****

[Scott]

I dropped 5 knots on my Velocity by installing VG's. on a canard plane
they are installed on the canard and the main wing to do this. This is
not the same installation as done for the GU canard that lost lift in rain.

Scott

dgil wrote:
> Hello, has anyone had positive results(reduction in stall speed) using
> vortex generators on a wing utilizing the RAF48 airfoil?
>
> Thanks,
> David

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