Oh, I know there's many full sized aircraft that use very thick airfoils but it's when they are reduced to model sizes that I start to wonder.

I think the 3D stuff gets away with these super thick airfoils because they weight about 4/5's of nothing but if Coos is building a scale model then it's behaviour at "real" wingloadings is going to be more of an issue I suspect.

But then I'm just guessing here...... It would be nice to run some Xfoil plots on the 2319 at some scale model Reynolds numbers.

Coos, can you offer up some wing sizes and expected weights?