You need to be more specific about your goals. Size of model, type of flying (old style turn&burn or newer turnaround), etc.? Typically, the smaller the model, the thicker the airfoil. Current 2M ships are using 9-10% thick foils that will not work well on a 40 size plane.

The NACA 00 series are good, especially the 0012 and 0010. Also the NACA N-64 series works well and is a laminar flow foil with the high point back around 40% chord, which is very similar to many of the current foils used. If you don't have the coordinates for these, do some Googling on naca and airfoil coordinates and you should find lots of info.


Mark