The GAW-1 airfoil is a spin off from the first Supercritical airfoil
tested in flighton the Navy 2TC trainerand as I said in my eariler post
we used thickness of 0.075 at the trailing edge. Yours is slightly
thicker but should be O.K. This airfoil is also used on the very easy
wing and was shown to have 50 % laminar flow .
Jim
12 Nov 2006 15:39:38 -0500 "Harold Woods"
<haroldwo...@rogers.com> writes:
> I am using a GWA-1 airfoil. It's trailing edge is blunt, 1/2 inch
> thick.
> Supposedly as the wing reaches it's stalling angle, a rotating
> horizontal
> vortex develops along this trailing edge. The higher pressure on the
>
> underside and lower pressure on the top forces the vortex to rotate
> such
> that it tend to force the upper air to stay attached to the top
> surface of
> the wing much longer than would occur on a sharp trailing edge. Thus
> the
> wing will be an aggressive climber at slow speed. The proof is going
> to
> occur if I can finally finish mine and get it into the air. I have
> so many
> other interests that the KR is in conflict at the moment. I will
> report the
> results eventually.
> Regards
> Haarold Woods
> Orillia,ON.Canada
> haroldwo...@rogers.com
>
>
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