Which airfoil....
I´m very curious about NACA 66, does it reach the usefull reynolds numbers with an standard OS40FX? That´s what we all are using here to race; I´m acually using MH18b airfoil with nice results.
I´m afraid that maybe without a nelson or a jett that airfoil will not perform as well, but if not, it could be interesting to build and test
Daniel