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Allegro 2000 Wing Tanks

 
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hgmckay(at)bellsouth.net
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PostPosted: Thu Mar 30, 2006 6:01 am    Post subject: Allegro 2000 Wing Tanks Reply with quote

I have seen Fantasy Air’s Mandatory Bulletin No. 4 for the Allegro 2000 (Replacement of extra fuel wing tanks) which seems confusing to me concerning the affected aircraft. >From the S/Ns listed it appears that the various aircraft affected are random, or maybe I don’t understand the serial numbers. Has any one else seen this bulletin, and can you explain the randomness of the S/Ns. I have wing tanks, and my Allegro 2000 S/N is 04-713. I am confused! Help!!
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Hugh McKay
hgmckay(at)bellsouth.net (hgmckay(at)bellsouth.net)
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Thom Riddle



Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

PostPosted: Fri Mar 31, 2006 3:34 am    Post subject: Allegro 2000 Wing Tanks Reply with quote

Hugh,

I've seen the SB too but fortunately for us, our Allegro #03-202 does
not have the extended range wing tanks so it certainly does not apply
to mine. This is a guess but I suspect that the odd assortment of
serial numbers affected is due to the fact that not all Allegros are
equipped with the wing tank option. I know the first two digits of the
S/N are the year of manufacture and am guessing that the last three
numbers are merely sequential numbers for all Allegros or Allegro kits
coming from the factory.

Where are you located? I guess somewhere in the deep south of the USA
due to the BellSouth ISP. I used to live in Atlanta, GA.

Thom in Buffalo


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Thom Riddle
Buffalo, NY (9G0)



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dave(at)dreamwings.co.za
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PostPosted: Fri Mar 31, 2006 8:20 am    Post subject: Allegro 2000 Wing Tanks Reply with quote

Hugh

Not sure but maybe they listed s/n's of aircraft with tanks fitted.
Whatever the case, if you have the fiberglass tanks, beware. I had the
fiberglass tanks in mine and only a couple of weeks after installing them
they leaked, both sides. I was planning a long flight so filled both tanks
in preparation for departing the following day, a Monday. The next two days
it rained and on returning on the Wednesday found that about 15 litres had
leaked out of the left tank and 5 litres out of the right. The result was
extensive damage to the paint work on the underside of both wings and the
left door was destroyed by the fuel running over it.

I removed the tanks and pressurised them slightly before pouring soapy water
over them. Both thanks had pinhole leaks in them. Fantasy Air have
replaced the tanks with Aluminium tanks which look much better than the
fiberglass ones. I havn't tried them yet as I still need to repaint the
wings. Have just finished replacing the polycarb on the door.

Regards
Dave Grosvenor
www.dreamwings.co.za
Durban, South Africa
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Thom Riddle



Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

PostPosted: Sat Apr 01, 2006 5:15 am    Post subject: Allegro 2000 Wing Tanks Reply with quote

I have not seen the Aluminum tanks. How are they constructed? Are they
aluminum tubes with caps welded in place?

The reason I ask, is that on my experimental Titan Tornado, the
home-built aluminum tank started leaking after a few years at one of
the weld seams. This can happen from vibration. I repaired the leak
with Pro-Seal which is very messy to use but really works great. It is
a two part paste and the area to be sealed must be cleaned thoroughly
with acetone or MEK. It has to set up for about 48 hours if my memory
is correct but it works like a charm.

So if the new aluminum tanks develop leaks later (may not) this
Pro-Seal stuff is a great fix.

Thom in Buffalo


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Thom Riddle
Buffalo, NY (9G0)



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hgmckay(at)bellsouth.net
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PostPosted: Sat Apr 01, 2006 10:24 am    Post subject: Allegro 2000 Wing Tanks Reply with quote

Thom: I haven't received them yet. As soon as I do, I'll give you the
details. Thanks for the info on Pro-Seal.

Hugh

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dave(at)dreamwings.co.za
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PostPosted: Sun Apr 02, 2006 2:19 am    Post subject: Allegro 2000 Wing Tanks Reply with quote

The tanks are made up of two 4 ft lengths of ali tube, welded end to end,
with a cap on each end. No longitudinal seam so only 3 welds that could
develope leaks, other than where the outlet and breather tubes are welded on
the root cap.

Dave Grosvenor
Durban, South Africa
www.dreamwings.co.za
---


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