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.
|