New member, and hello to the group. I'm a retired aero engineer developing aerodynamic drag reduction concepts. Have already flight tested phase one of using vortex generators to reduce drag on an RV, and am looking for volunteers to flight test phase two. Phase one provided a 3 knot cruise speed increase. If anybody's interested, please contact me. Someone in the Atlanta area would be nice, but all are invited if you like doing this sort of thing. ~Curt