Eric Greenwell wrote:

I thought Johnson's criteria was +/- .004".

Thanks Eric and Udo. I got the +/+.002" from a Soaring article *not*
written by Mr. Johnson. My mistake! I tried looking at some of the flight
tests from the SSA website and +/-.003" to .004" seems to be what Mr.
Johnson uses as his benchmark, as Udo says.

Now I'm feeling a lot better about my wing reprofiling work! ;-)

Regards,

-Doug