Congrats to Lightfoot as winner of the "Model?" contest. Yep, it is a slightly modified McCessna ala Kitfox hanging ailerons design. D. Nelson, yep, they sure do work, as it "turns on a dime".
For some details, the ailerons are heavy RC heli
blades donated by a fellow club member of a now extinct RC heli design with a fully symmetrical airfoil section. Two aluminum rods extend out, trailing from underside of the wing and bolted to ply ribs, respectfully. At the end of each rod is a threaded nylon, angled strut mount fitting which has been reshaped by heating to straighten it out. The front of the hardwood heli blades have an aluminum tube epoxied into a routed recessed groove maintaining the airfoil shape "D" section. Along this tube in two places, slots have been cut into the leading edge of the "aileron", wide enough to accept the the nylon fittings which have a hole that lines up with the tube center. A solid 5/32 aluminum rod is pushed from the end of the tube through it which engages the nylon fitting holes, thus allowing the aileron to pivot off its leading edge. Really the same idea as some modelers use to hinge their elevators or rudders which then become, removable. Recognizing that because of the heavy aileron wood, it would not be good to apply such static loads to the wing servos and flutter concerns, the ailerons have been weight counterbalanced with a lead fishing sinker on a music wire extension angled down and forward from underneath the aileron. The weights are adjustable along the wire to "calibrate" the static aileron position. I think this aileron design complements the "weird" Hoerner drooping wing tips! The original design had the conventional designed ailerons built into the wing. Needless to say, the designer of the McCessna who I know wasn't entirely pleased with my "messing around" but as Burt Rutan would say, "Dare to be Different"