Dear Forum Members,
My flap hinge plates (W19, 20 , 21) where painted and there is paint in the
holes
where the FL9 bearing is installed. I reamed one using a nominal 0.375" reamer
and found that the bearing OD is 0.375" (or slightly smaller) so it is now
a slip fit (most sleeve bearing are usually slightly oversize (0.001") to
achieve
a slight press fit). So I just bonded that bearing with Loctite 638 but,
before I ream any more holes, I wonder if anyone remembers if these bearing
normally
have a slight press fit of they are indeed a slip fit and rely on the Loctite
to be held in place. I will order an undersized reamer if necessary (I
would assume a slight press fit is desirable over a slip fit).
Also, I am in the process of fitting the flaps to the wings. I noticed less than
perfect alignment between the position of the hinge plates and the W18 supports
in the ribs (if you follow the manual). The good news for me is that since
the plates in the flaps (FL1, 2, 3) are not in yet I can adjust the position
of the ones at each end (except the center one which is obviously fixated to the
center rib). By adjusting the depth of the rebates at the flap root and tip
I can make the plates align properly (which is what I will do) but that means
the flap may move outboard slightly (possibly around 5mm, if I try to place the
FL# flap hinge plate on the same side as the W18 plate, which I know is not
mandatory but probably nice). Any concerns about the length of the flap
actuation
cross tube ending up a little short if the flaps move out slightly or is
that tube longer than needed and needs to be trimmed (the logical scenario). Any
advise or experiences (pictures) of your flap hinge alignment issues would
be appreciated.
Best regards,
Chris Martin
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