RE: airfoil thickness
little light plane- ? foamy?
thick is NO advantage
actually the opposite
lightest thinnest which is still STIFF-is best
The whole reason for "thick is make the friggen thin less sensitive to pitch -also stronger
All of the carefully worked out airfoils are simply for ONE FINITE application - change speed and AOA and it all turns sour.
But what the heck - do what you like -It's modeling
no one gets killed -------------