I think it's fair to say that this layup was not far short of a comedy of
errors for me - but I now have 3 ailerons as a result... When people ask
what all the bits are in the lounge, I point out the 1 rudder, 2 flaps and 3
ailerons and so far all but one have just nodded sagely ;-)
I concur wholeheartedly with David's comment below about not overfilling the
vee. I slightly overdid this on one end of one aileron (fix: trim and round
the hinge edge ever so slightly - the Factory can advise how much is
permitted). The other aileron was too shallow for this, so I took the
recommended fix of grinding out the vee at the hinge points with an
acute-angled Permagrit cone and repairing. Unfortunately when I relaid I
used waxed mixing sticks to ensure the cloth stayed down in the vee - and
they stuck solid.
Given that an extra aileron was going to be useful for practicing building
my aileron trim, I took the easy option of doing a second starboard one
instead of trying to grind the sticks out without damaging the layups.
I found the strip of cloth could easily be stretched the small amount
required to do the full length in one go, but you do have to be careful or
it ends up rather narrow in places - the recommended width is only just wide
enough. If you want to go this route, I'd cut it an inch wider than stated
and position it so that any excess goes beyond the flange and can be cut off
in the usual manner.
Hope this helps!
Regards,
Jeremy
Jeremy Davey
Europa XS Monowheel 537M G-EZZA
-----Original Message-----
On Behalf Of david joyce
Subject: Aileron hinge flange
Roland, Having posted a suggestion to you, I went back to the manual and
realise that the two layers of bid are meant to be put on seperately with
the hinge reinforcements in between, (no doubt in the interests of smooth
edges to the reinforced areas). You could still use the technique of filling
in the corners but on reflection there is plenty of material in the 100mm
strip and I am sure it would not matter a bit if you simply stretched it to
fit without extra corners. Incidentally one thing to beware of is getting
too much material (by which I mean resin and micro in the bottom of the 'V'
where the hinge will go) I found myself having to grind out some of the
material in order to get the hinge to sit properly, which of course weakens
the strengthening, and if I was doing it again I would clamp a clingfilm
covered hinge in place while the lay up dried. Cheers, David
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