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Old Oct 09, 2012, 09:30 AM
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The outboard aileron should deflect more than the inboard for roll commands. From Dr. Drela from the Supra build thread (sailplane), but I expect it would be a good starting point for any airplane:

"When setting up the aileron-stick servo motions, the flap motion should never be less than about 35-40% of the aileron motion. This gives the least added drag due to roll rate.

In practice you want to use somewhat more than this 35-40%. Increasing it to 60%, say, will give only a miniscule roll-drag penalty. But this larger flap deflection will increase the resistance to tip stall in a tight, slow, sustained turn. The limiting case of 100% flap motion is equivalent to full-span flaperons, which gives the most tip stall resistance."

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