Hi Craig,
Maybe the flap tube clearance is too close a call to make at the moment.
Might have to shelve that thought for now, as one of those things that can't
be looked into until later when other things are finalized.
Sounds like a good technique with the cord for setting up the hinge mounts
on the fuselage. When potting in the center flap hinge arm a few years ago
(on the same axis as the outer hinge arms), I used the lightest stuff I
could get my hands on, to eliminate droop. That turned out to be
monofilament fishing line. A small toothpick-like stick, which was tied to
the line, had plenty of friction to hold itself in place under tension, on
the back side of the hinge, with the line going through the exact center of
the holes on the outer edges of the flap. Used eyeball and painted the
fishing line in the area it went through the holes, to achieve good
visibility. Not sure how that technique will work with the fuse hinge arms
though, due to accessibility and parallax error. I might have to visit your
technique, it sounds pretty good.
I am heading down to pick up some HDPE right now and am hoping it will work
at least as well as nylon. I think someone else here had good results.
Afraid glue won't stick to either like it does with TUFNOL, though. Might
put them on the top side of the spar hole too. Hopefully, it will help
one-person attempts to align the wing pins so many times. How did you
anchor in the nylon blocks, a number of screws and some glue around the
edges of the block? New thread could be started here...almost (prob too
short).
Greg F
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From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of craig
Sent: Tuesday, June 07, 2011 12:46 PM
Subject: RE: Europa-List: Re: Flap cross tube
I used some heavy nylon blocks cut into an L shape to guide the spar as it
slides in, fixed into each spar hole.
As for the flap tube, like you I had doubts the tube was long enough, it
ended it being too long. Rig your wings
Then go ahead and cut the slots for the hinge mounts in the underside of the
fuse so you can get the four holes lined up.
I used a heavy cord for the alignment that was a neat fit in the bolt holes
and basically pulled it tight with tension provided by a 5kg weight
This way you don't have to "eyeball" the centre of the holes for correct
alignment and even if you move something a little by accident the tension
On the cord is enough to keep the alignment correct on the two inner hinges
as the outer two are already fixed in place
craig
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Greg Fuchs
Sent: Wednesday, June 08, 2011 4:33 AM
Subject: RE: Europa-List: Re: Flap cross tube
Hi Richard!
Yes, with the flaps up. The wings are pinned with the main spar pins, but
the lift pins are not in place. Could that be it? ...Rocking the wings fore
and aft, there does not seem to be much movement. There is no hole in the
fuselage to accept the cross tube yet. I am looking ahead to try an see how
things are going to fit in the future, and measurements have an eyeball
factor, since things are not in line, and may be suffering some parallax.
Currently trying to figure out some way to provide a slot in the
quick-connect area for the wing spars to slide in, to make it easier to
rig/derig (I don't think there is extra Tufnol in the kit for this, maybe
HDPE will work..). ..Final say may well be after the wing is set in its
permanent position with lift pins and cross tube installed through the
fuselage.. I might use some plumb bobs (hanging from flap pin surface) for
a better esitmate, later on today.
Thanks for your input,
Greg
_____
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Richard
Wheelwright
Subject: Re: Europa-List: Re: Flap cross tube
It may be a silly Question, But have you rigged the wings with the flaps in
place? I ask, because the flap drive pin slides into the flap cross tube as
the flaps are retracted. If you are measuring with the flaps extended it
would appear to be short.
I hope this helps. Sorry if you are ready know this
===================
Richard Wheelwright
===================
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