Hi All, I am setting the wings to fuse now. I don't see anything in the
manual about the spars being tight up to the seat back, or in the case of
the stbd side, against the port spar steel cup. Getting sweep set equal
seems to be bending the spars for and aft a little. Also the port front pin
socket does not have room to be free of inward pressure on the fuse even
after milling .125 off of the wing root seated end of the socket and
grinding through 4 layers of bid on the fuse. Any thoughts?
Kevin A211 to be N211KA
-----Original Message-----
Behalf Of Richard
Subject: Re: Wing alignment
Bill,
I had problems getting my wings lined up. I lined them up perfectly,
reduxed the spar guides in place then discovered that I had ended up with
an1/8th inch gap between the seat back & the port spar. After consulting
with the factory, I bonded several of the thin washers supplied to take up
the gap under the pip pin head, onto the seat back and covered them with a
layer or two of bid. In seeking to find out how the problem had occurred I
discovered that the seat back of the cockpit module is not quite parallel to
the firewall. The end job however is OK. The wings have the correct sweep,
are exactly parallel to the tailplane torque tube and the firewall.
-----Original Message-----
From: forum-owner@europaclub.org.uk
Subject: Re: Wing alignment
Bill, I think the question of wing sweep is misleading. IMHO there is only
one place to fit the wings and that is with the spars tight up against each
other and tha rear of the cockpit module. Any gap between spars or module
seems to be putting an unreasonable load on the spar pins inviting failure.
If you fiddle around with the wing tips getting the sweep measurements
precisely equal you can easily end up with a half inch gap between seatback
and spar, which is what happened to me on my first attempt. Having cut off
the pin sockets and thought about it I then fitted them with blocks pushing
the spars forward onto the cockpit module. This resulted in a 1cm
discrepancy in the wingtip to tail measurements on the two wings, which I
think is of no consequence, and much preferable to a gap between spar and
module. Happy Xmas, David Joyce
----- Original Message -----
From: Wil McClellan <wilmac@gte.net>
Subject: Wing alignment
> In setting up the wings for correct angle of incidence (2.5 deg +or - .05)
> is simple enough to accomplish but I have a potential problem with the
> forward and aft sweep. Holding the fuselage in place I can put adequate
> pressure to get the wing sweep corrected but I question that even with the
> pin sockets properly set including the rear pin tie bar inplace, the wings
> won't still return to at least some of the incorrect sweep. Both my wings
> are about equal in rearward sweep. This will put the tie bar in
> compression. I estimate I have to put 6-7 pounds of forward pressure on
the
> wing tips to get the correct position. Maybe this ultimately will be
> corrected out with the tie bar but has anyone found they had to do extra
> correction for this problem.
>
> Thanks,
> Bill McClellan
> A164
>
>
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