John, I think the dummy spar supplied now has changed but with my kit, no
402 the dummy spar changed dimension significantly on getting damp or drying
out and the consequence was that my wings would not rig even with the help
of a hammer! The solution (arrived at with the help of Andy Draper) is
however fairly simple. You can readily remove one of the cockpit module
bushes by applying heat to it and then bond it in again with the position
determined by a new dummy spar drilled to fit the wing spar bushes
precisely. To avoid melting the whole seat back I jammed a 1/2 inch metal
tube into the bush and blew hot air down it with a heat gun until the bush
became loose. David Joyce
----- Original Message -----
From: <TELEDYNMCS@aol.com>
Subject: Europa-List: Trouble fitting wing spars to cockpit module
>
> Greetings to the new forum host.
>
> I was working on fitting my wings to the cockpit module today in prep for
> bonding spar cups in place and I can't seem to get the wings to pin to the
> cockpit module. The wings will pin to each other, although it is a very
tight
> fit. Each wing individually will pin to the cockpit module, but the combo
is
> extremely tight. Either pin will go all the way in through both spars and
the
> cockpit mondule, but the other, regardless of direction of insertion,
won't
> go "home".
>
> I set the cockpit module bushes using the dummy spar and the supplied 1/2
> bolts. The holes for the bushes were already drilled and the tollerence
with
> the bush was tight, certainly not enough slop to cause the misalignment
I'm
> experiencing. The dummy spar also appears to fit the wings and the cockpit
> module perfectly in dry runs. The only thing I can figure is the cockpit
> module bush holes were slightly incorrectly set at the factory.
>
> My sailplane experience says not to ream the bushes lest ye wind up with
> loose fitting wings. Anybody else had this problem and if so what'd you do
> about it?
>
> John Lawton
> Dunlap, TN
> A-245
>
>
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