Originally Posted by
cocodet
This software (profdlg) is computing ellipsoïdal wings using Drela's profile or others if so you wish, then produces the Gcode needed to cut them with a CNC router. My experience is that those ellipsoïdal wings give better performance than regular Drela's wing. Supposedly the spitfire had such type of wings and was better than those aircrafts with straight wings. I have attached the soft which computes Drela's type wings, that is a wing originally in two straight sections. Take AG47 for tip and AG 455 for root and run it step by step. You will have a wing close to Drela's. Usually one cuts such wings with a hot wire and templates made using the Profili software. Good luck.