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Old 03-23-2011 | 03:02 AM
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dredhea
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From: Fulton, NY
Default RE: Correcting adverse yaw


ORIGINAL: BMatthews

It's actually not as simple as you think. The amount of adverse yaw you encounter will depend on the flying speed. The worst condition for adverse yaw is near the stall point where the down traveling aileron moves that wing to a high lift coefficient and a high induced drag as a result. But if you're ripping along at a high cruise speed where the wing is operating at a very low lift coefficient then you will see extremely little or no adverse yawing. In fact at high speeds with a strongly cambered airfoil such as found on most Cubs it's quite possible that the up traveling aileron may force that side to such a low lift coefficient or even to a negative Cl that it produces a PROverse yaw. See? It's not quite as clear as you may think.
My line about carefully adjusting the rudder mix with my left thumb was an attempt at humor, meaning that I currently just coordinate rudder into my turns. The casual observer would not understand what I meant by adverse yaw as they would never see it (hopefully). I know what you mean, though, as my rudder input varies depending on airspeed. The yaw problem is more pronounced at lower airspeeds, where I usually fly. Your post makes me think that perhaps I'll just leave well enough alone and continue to fly with both hands.