writes:

Will someone please explain why negative flaps supposedly provides
better aileron control. I know conventional wisdom says that it does
but WHY? It is not intuitively obvious at least to me. Yes I have
tried negative flaps at low speeds both on the roll and braking but
its effect as far as I could judge was marginal and my thoughts were
that it reminded me of a placebo. So please direct me to the
authorative articles on the subject or if there is a simple
explanation please educate me. Thanks.

With -ve flap, the AoA of the wing centre is less, so less lift unless
you increase the pitch angle. Net result is increased lift from the
outer wing sections, where the ailerons are, and reduced lift in the
centre. Hence the lift distribution is wider and more effective at
damping out roll.


--
Paul Repacholi 1 Crescent Rd.,
+61 (08) 9257-1001 Kalamunda.
West Australia 6076
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