Alasdair:
After thinking about it for awhile I have come to that conclusion. The
plan is to get the dremel tool out and cut the straps attaching the
manifold to the fuselage skin. Push the beast out in the driveway under
the AZ sun for a weekend and see if it flows out back. I put a couple of
good ripples in my wing by carrying it improperly and the fiberglass flowed
out and smoothed nicely on a balmy 105F day. The manifiold will be then
gingerly attached with some pliable RTV type material or a single strap
with a very large radius stress relief in it.
Thanks,
Steve
Steve Hagar
hagargs@earthlink.net
> [Original Message]
> From: A B Milne <milneab@onetel.com>
> To: <europa-list@matronics.com>
> Date: 9/13/2006 12:03:19 AM
> Subject: Re: Europa-List: Moving fiberglass
>
>
> The version of the wrinkling or waving of the fuselage skin on my
aircraft was
> below the filler and before the joint line of the fuselage halves. It was
> caused by the fuel tank permanently distorting by the weight of fuel and
> pulling on the filler tube via the 'flexible' hose. The builder's manual
> instructs the builder to strap this filler tube to the fuselage skin in
the
> wrinkled area. The cure was to cut this strap and free the tube from the
> fuselage. The wrinkles came out over a period of days in hot weather
(for the
> UK: max about 32C). So far after 3 months I have seen no other effects
around
> the filler and the filler to fuselage seal.
>
> Alasdair Milne G-CBYN
>
> Quoting Steve Hagar <hagargs@earthlink.net>:
>
> > This issue had come up before some time ago and I need my memory
> > refreshed. Am flying around in the hot AZ sun and differential
> > expansion is rearing its ugly head. This is especially true on the
> > fuselage right around the area where the fuel filler maniflod is
> > attached to the inside. Some very prominent waves have developed in
> > the skin here. I am hesitant on filling these to smooth things out.
> > I am assuming that it is reasonable to expect that things will keep
> > on moving through temperature cycling. Does anyone have any history
> > out there with flying in very hot weather and having the fiberglass
> > move around? Have you found this to settle down after some time?
> > Has anyone come up with a different mounting routine for the manifold
> > after getting the ripples?
> >
> > Steve Hagar
> > N40 SH
> > A143
> > 13 hrs
> >
> >
> > Steve Hagar
> > hagargs@earthlink.net
>
>
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