NACA 0025

Equation driven symmetrical 4 digit NACA airfoil substitute your desired length wherever you see 156 in Yx and in X2 If you want another NACA symetrical 4 digit airfoil divide last 2 numbers in designation by 100 and substitute for the first decimal value in Yx. For example NACA 0035 would be .35 I used .25 for NACA 0025. The point was a formula driven part in SolidWorks. Other file formats will of course lose the ability to modify the formula.