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1979 Pa-18 150 Aileron rigging

So picture a cross section at the hinge. No, maybe I will try to draw one and post it? Imagine the hinge line of all aileron hinges 1/4" below the bottom surface. The ailerons are on a lever of sorts, and the flow drives both rearward/downward the same amount.

Then imagine one side with hinges 3/8" below the bottom surface. Same amount of relative wind, but acting at a longer lever arm.

It is the see-saw problem. Equal weight players have to sit equal distance from the fulcrum, or the game doesn't work.
 
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