If I were applying a new foil to an existing design, I would absolutely match the wing thickness at the spar. It looks from Max Torque's plot that just using the base foils will end up thin, and you would be designing new structure at higher weight. Better to maintain known structure and scale the foil to fit over the structure. Write back if you need help on the correct method for scaling foils.
I agree yes please help me to scale
No i haven't, could you send to me?Generally, Paolo, the first 2 digits (37 above) is the point of most camber/thickest part of the wing. Riblett uses 37% MAC for more laminar flow but sharper stall. Do you have his second opus? On "spin resistant" airfoils?Percy in SE Bama, USA