Nev,
Thanks again for the great input! Could use you in the garage on a
regular basis. :)
Ralph
NevEyre@aol.com wrote:
> Hi Ferg,
> The fact that the ailerons are connected [ via rigid pushrods] will
> have no effect if one of them decides to flutter, it will thrash the
> pushrods for the few nano seconds it is still attached to the wing,
> and departs........
> The ideal situation is for them to be 100 percent balanced, ie the
> CHORD line of the aileron is level, underbalanced [ hanging down at
> the trailing edge] is an absolute No No, overbalanced is OK, but not
> the amount you have described.Book Read Engineers will be able to tell
> you the flutter speeds [250 plus kts...] just do it as per the manual,
> the flight test program [ Pete Clark] took it way past what was needed.
> It really is an easy job drilling out the exess lead, use a sharp
> drill at very slow speed, and if you can , clamp a piece of 1/8'' ply
> to the face [ inboard is best, less visible] and drill through the ply
> into the arm. Keep the ply clamped tightly,[ protect the other face
> with a similar piece of ply to protect the paint] don't let the drill
> bit ''grab''.Start with about 3/16'', work up in stages to 1/2'.
> Chances are you will need two 1/2'' holes drilled nearly through both
> arms to get close, if you do not break out the other end, all that is
> needed is a plug of blue foam 5 minuted in, a smear of Expancell, and
> a lick of paint to refinnish the inboard face.
> Best way I have found for drilling, is to fold a towel up , place it
> on the floor and stand the outboard tip of the aileron on the towel,
> and drill down into the inboard face of the arms, tape a plastic bag
> around the arm so most of the swarfe gets caught, rather than getting
> inbedded in the towel / tip.
> Cheers,
> Nev.
> *
>
>
> *
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