Aerodynamically, what is the lowest drag wing tip. Should it taper to a clean edge say an 1/8" thick or to cut straight off with a tip 1/2" thick at the widest point.

Also how much will drag increase with thickness of an airfoil. Say an average thickness is 1" vs another wing 1.25" thick. 36" span, 36" root. Actually what we are talking about here is pressure drag. Is it really worth trying to get the thinnest wing possible and just deal with the poor flight characteristics.

The speed we are talking about for this plane is right at 200 mph.

Thanks,

Blue Skyy