As I think it was Tony Krzyzewski who wrote, a good test is
> how easily the control columns will return to the vertical under their
> own weight when deflected and released.
I did the final rigging on my aileron tubes this weekend. The alignment of
the tufnol bearings turns out to be really critical if you want to get
everything free and easy. I applied flox to the tufnol faces according to the
manual and tightened the outboard nuts on the rear blocks. I then tightened
the two nuts on the shortest edge of the forward block only enough to keep it
in place.
---From then it was simply a case of tweaking the remaining nuts until
everything swang freely. I did have to back off the outboard nut on the port
side to ensure the tufnol plock aligned properly. Once I was happy then I
packed the gaps with flox.
By the time I had finished if I let go of the control stick at full
deflection it would overswing the centre, return back past the centre and
then settle.
When everything was set I retested the freedom in all planes (including
inverted!)
One thing I did find when setting this up was that the chamfer on the forward
block was very important, if this isn't of sufficient depth then everything
will lock up quite quickly.
All told I would have spent a good eight hours ensuring these things swang
freely before final bonding took place.
Regards
Tony
---------------------------------------------------
Tony Krzyzewski tonyk@kaon.co.nz
Managing Director Ph 64 9 520 4631
Kaon Technologies Fx 64 9 520 3321
Auckland New Zealand
Networkers visit www.kaon.co.nz
Aviators visit www.kaon.co.nz/europa/272index.html
and www.kaon.co.nz/saanz/
----------------------------------------------------
|