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Post on gear ratio and prop sizes? in Rotax and other engines
By klares, postedLooking for a better understanding of gearing and prop size... If a guy wanted maximum stol performance would he choose the biggest prop he could clear, run the lowest gear ratio ie- 4:1 and pitch it accordingly? I'v read in several places that larger dia props turned slower provide better takeoff and climb performance. So where are avids/kitfox's limited, is it ground clearance for the prop? I think 3:1 is the lowest gearset i'v read of people using on these planes, does anyone have experience with the lower gear ratios?