RE: two airfoils on one wing
Thanks for the tip Ed.
I had no idea that this was so common in model aircraft. I had seen may mention washout and alike, but they would most often use the same airfoil root to tip with no mods other than a bit of taper or sweep.
I had not thought about using a foam cutter to make the wing. I could then just slice out the pieces for rib patterns and build them up from wood. The design I am working on was for a competition that one of the rules was that most of the airframe had to be constructed in wood. But that does not mean I can not use the foam as a design tool. A plywood pattern for the root and tip would be easy to do then cut the foam and take out the slices I need for the ribs is still an idea.
Thanks again for the tip, that method should work well for what I am doing.