The airfoil shape sets the performance of your wing (or hydrofoil). An airfoil poorly chosen for its role will result in a poorly performing design. The airfoil shape is primarily responsible for the range, endurance, pitching moment and other parameters related to stability and flying qualities.
VisualFoil NACA is a NACA airfoil generator and airfoil analysis software package. It is based on a linear strength Vortex panel method coupled with a boundary layer solver. The software accurately computes lift, drag, moments for NACA 4, 5 and 6-digit airfoils. VisualFoil NACA is identical to the full version of VisualFoil 5.0. The only difference is that it analyzes NACA Airfoils and it will not import other airfoil shapes. Please click here for more information about VisualFoil 5. VisualFoil NACA exports airfoils in ascii and DXF formats. It will plot the airfoil shapes using Windows supported printer.
VisualFoil NACA requires a PC, Laptop or tablet running MS Windows XP, Vista, 7, 8 or 10. The subscription price for one month of VisualFoil NACA is $20.