Larry asked:
> According to the service manual, "for a wing heavy condition, 
> bend the trailing edge of the opposite aileron downward". 
> Why not just trim the opposite aileron upward?

I can't say I know the definitive answer.  Here are two thoughts for
you:

1.  If you bend the trailing edge upward, that forces the aileron
downward.  A downward aileron increases the effective curve of the wing,
giving more lift.  More lift causes more induced drag.

2.  Perhaps there's something in the structure of the trailing edge that
makes bending downward safer for the aileron.

"Because I said so!"

Anyway, those are two possible "whys."

Ed


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