>Hi! John. The trouble with the e-mail system is that it gives people the
>idea that whoever answers a query is an 'authority' on the subject and
>that is not the case !
True.
I
>can't see how the push rods can affect the balance ,
Might affect the resonant frequency though. Heavier pushrods could bring
the natural frequency into resonance with the bending of the wing. Far too
many variables to guess, so the only thing to do is stick to the book in
the knowledge that dear old Pete Clarke tested the stock airplane way
beyond the published flight envelope.
Graham
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