I'm a strong believer that more than half of the average flyers out there are twisting the wrong prop (s),, why are these guys revving their G38 at 8300 with a 18x10 in a 16, 17, 18 pound Biplane when a 20x6 turning around 7000 would be much much more efficient, and at 7000 the engine would not be over revving out of it's torque range,, same old story I guess

Jim