A "french curve" is a drafting template (you remember Drafting 101, where you learned technical drawing, orthogonal drawing, lettering, etc.?) ;o) Anyway, you use it to "fair in" curves between points. It has nothing to do with Parisian women.
As Mark has noted many times, and documented in the technical reports on the development of the AS50xx-series airfoils, his early attempts to find published RAF coordinates and to reconcile those with the printed profile used on the KR, led to confusion and frustration. In the end, I believe he used a close approximation because the published coordinates didn't agree with reality or with what Ken Rand used for the KR. Oscar Zuniga San Antonio, TX mailto: taildr...@hotmail.com website at http://www.flysquirrel.net
