Hi Everyone,

Merry Christmas - Thank you all for your help!

I just figured I can do a mix of two airfoils in profili; the professional version of Profili allows for a mix of two airfoils, with a bias on the upper and lower surfaces.

All i need to do (i will purchase profili first of course!) is, say for the 5% top, 8% bottom airfoil, mix a NACA 0010 and NACA 0016, and bias the top 100% to the NACA 0010, and bias the bottom 100% to NACA 0016! This results in half of the NACA 0010 (i.e 5% thick) and half the NACA 0016 (i.e 8% think) resulting in a 13% thick inverted airfoil!

Thanks for everyone's help with this one!