I believe you can increase the thickness to about one percent of the
chord without adversily changing the performance. When we were developing
the supercritical airfoil for transonic performance gaines we increased
the trailing edge to about .075 chord without reducing the performance,
this was mostly for structural reasons.
Jim
On Sun, 5 Nov 2006 08:06:53 -0800 "John Bouyea" <[email protected]>
writes:
> I have a question about the thickness of the tailing edge section.
> This
> photo of Richard Shirley's trailing edge shows a blunt profile.
> http://www.bouyea.net/gathering2004/P1002293.jpg
>
>
>
> The Cirrus people told me this is done to improve the feel at higher
> rates
> of speed. (Interestingly, both Cirrus and Richard have aluminum
> ailerons.)
> Most of the KRs I have seen have very thin (i.e. sharp) trailing
> edge
> sections.
>
>
>
> Does anyone know definitively about what this type of change might
> do to the
> standard RAF airfoil?
>
>
>
> John Bouyea
>
> KR2/ Hillsboro, Oregon
>
> http://www.bouyea.net <http://www.bouyea.net/>
>
>
>
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