I'm rather concerned about this too. Going to have a look at my tank
for signs of bulging.
Almost certain I'm converting the mono to a conventional through Bob
Berube. Just need to price it out.
Do you know if the tank can be replaced easily?
This forum is invaluable!
Hope all's well.
Cheers
Venu
Cell: (512) 771-3286
On Apr 30, 2008, at 22:18, Fred Klein <fklein@orcasonline.com> wrote:
>
> On Wednesday, Apr 30, 2008, at 13:46 US/Pacific, Sidsel & Svein
> Johnsen wrote:
>
>> >
>>
>> All,
>>
>> Preventing the tank from bulging too much forward will of course
>> prevent it touching any of the controls or the wing spar (in which
>> case the strap on the left spar might catch on the bulge during
>> withdrawal/installation).
>
> Before getting Svein's thoughtful and informative post (thank you
> Svein!), I spent some time looking for a solution to potential
> bulging in my tank (which came w/ kit # A194, shipped from the
> factory in fall, 2000).
>
> In order to "contain" the (outward) bulging, I reset my spacers
> (which have generous curves at the corners of the specified lay up)
> to ensure a gap between tank (dry and never filled w/ anything) of
> between 1/8" and 1/4" and maintaining 1/4" clearance from the
> aileron control rod, I was planning to do the following:
>
> Insert a piece of 1/8" thick plywood, 6.25" x 34", w/ 1 layer of
> bid each side between the spacers and the front face of the tank,
> cushioning the plywood w/ 1/8" thick "sill sealer" (I believe it is
> a closed cell polypropylene foam available in 6" rolls at any
> building supply) between the plywood and the forward face of the
> tank. Prior to insertion, I would add a 3/4" x 2" x 34" foam
> stiffener w/ 2 layers bid on the forward face of the plywood. The
> plywood would be held in place w/ a 2 ply bid 2" wide tape which
> laps onto the underside of the FG "shelf" (previously installed as
> per manual). In doing this, my goal would be to resist "bulging" of
> the forward face of the tank.
>
> Having reviewed Svein's post, I will not be doing anything until we
> have more information, hopefully in answer to Svein's questions on
> the nature of the HDPE used in our tanks.
>
> I do appreciate so much the value of this forum as we attempt to
> address this insidious problem.
>
> Fred
>
>
> --
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