A relevant question while we are on the subject.
My tank dates from 2003. Everything is in and I am planning to close the
fuselage. I have understood that once filled (except for the comments
about the aux tank) with fuel it's better to leave the tank full.
However I would like to check the fuel system for two reasons, one to check
that it all works and the other is that if it does split I am thinking that
the major surgery will be easier without the top on.
Is it a good idea to do this before closure bearing in mind that it will
take be another 18 months (ha!) before flying?....or should I just hope for
the best?
thanks
Will
William Daniell
LONGPORT
+57 310 295 0744
On Sat, Mar 29, 2014 at 6:34 AM, Pete <peterz@zutrasoft.com> wrote:
>
> Which is why (when using mogas) the fluorination treatment is so
> important, and why I believe the factory level of fluorination may be
> inadequate. There are companies who do fluorinate for a fee ( search the
> archives for info ).
>
> Cheers,
> Pete
> A239
>
> > On Mar 29, 2014, at 5:22 AM, "Arnold Kr. Hansen" <arno-k@online.no>
> wrote:
> >
o
> >
> >
> > Hello everybody interested in this topic,
> >
> > According to my own experience two phenomenon happened to the HDPE
> material
> > in my tank; it swelled but also became very brittle.
> >
> > I had to remove the tank in pieces. During that process I observed
> several
> > small cracks in areas, outside bonding areas, that had been subjected t
o
> > bending stresses due to bulging. I could easily make a crack in the
> material
> > with a sharp knife. The material was no longer the tough one I learned
to
> > know when drilling several small holes to make the hole for the fuel
> level
> > sensor.
> >
> > Therefore I think this phenomenon is a contributing factor to the
> cracking
> > of the tanks. The swelling will not necessarily lead to an even
> expansion of
> > the tank. Therefore bending stresses in the material can occur without
> any
> > external forces acting. And since the material has become very brittle,
> it
> > can crack and make a leakage.
> >
> > Best regards
> > Arnold Kr. Hansen
> > LN ABM
> >
> > -----Opprinnelig melding-----
> > Fra: owner-europa-list-server@matronics.com
> > [mailto:owner-europa-list-server@matronics.com] P=E5 vegne av
> spcialeffects
> > Sendt: 28. mars 2014 21:42
> > Til: europa-list@matronics.com
> > Emne: Re: Europa-List: XS Fuel Tank Kiwi Mod
> >
> spcialeffects@aol.com>
> >
> > Hello stephan. Well I put off bonding in my cockpit module because of
> this
> > very subject as it seemed that quite a few reports of tanks splitting
> we're
> > emerging just as I was about to bond in my tank. I filled my tank with
> fuel
> > for 6 months prior to bonding it in and yes it does swell by quite abit
> but
> > I think this is not only due to fuel getting into the actual material b
ut
> > the weight of the fuel. What I gathered from everything I read was that
> the
> > tanks were splitting due to being bonded into the module tight against
> the
> > cockpit wall this giving the tank no we're to swell once filled with
> fuel. I
> > made a cradle for the tank to sit in and bonded that to the cockpit so
my
> > tank is actually "floating" in place. I will post a few pics later. Hop
e
> > that helps. Frank
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=421209#421209
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
===========
===========
===========
===========
>
>
|