Hi T.P.!

Thanks for the feedback. Unfortunately, Profili won't work on a Mac, so I'm stuct with MacFoil. However, just as a matter of curiosity, did you mean that you can enter the root and tip airfoil profiles (in Profili) along with the spar length (and perhaps washout) and rib spacing, and get the intermediate rib plots?

Regards,

Dave P.