SR3500 Wing Doubler & tip tanks

[bear]

Warren , I have just completed the drilling of

the RH wing as as 3500. I have decided to flush
rivet the leading edge but not the doubler. I am
also working on possibly installing wing tip tanks
that would give me 20 usg/wing. (120 usg) in total
for all tanks. I have been in touch with MAM and
have sent them my proposed procedure and a bill of
material for them to approve. It appears that I
may get an increased gross for full wing tanks.
They are doing the calculation. I am still working
until Sept 14 then will retire AGAIN and return to
building C-FISH full time .
Gerry




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Date: Fri, 03 Aug 2001 12:12:03 +0400
From: "Warren T. Montgomery" <monty@emirates.net.ae>
Subject: Re: Epoxy Primer EP-420 (Gerry & Rebel 505)
To: murphy-rebel-d@dcsol.com
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Thanks Gerry & Rebel 505

MAM is sending the product info on EP-420 so

will use that to come up

with something however the F-580-2010, Primer

epoxy strontium chromate

for Airbus sounds like it'll work.

Sorry I didn't get by your place Gerry but we

just flashed through

Saskatoon, as usual did more traveling then we

had time for. We did buy

the lot at the Airranch in Okotoks so will have

a home for the SR.

My parts for the upgrade are enroute so haven't

looked at what lies

ahead. I had some 5/32 flush rivets that I used

on the leading edge

extension as the holes didn't line up. Although

as you know I dimpled my

leading edge. I wouldn't think there would be

enough material to

countersink for 5/32 or 3/16 rivets. I missed

drilled a hole in the tail

skin as an '8' and had to enlarge to 3/16. I

then reduced the profile of

a 3/16 flush rivet so it wouldn't stand out from

the 1/8". You can also

get low profile rivets that might work as they

would take a smaller

countersunk area.

Just closed off the rudder after installing an

electric trim as per the

elevator. 4" x 11.5" on second large bay from

bottom. Will now work on

the cabin area as I await the upgrade kit.

Warren

Date: Wed, 01 Aug 2001 18:04:06 -0800
From: bear@dcsol.com
To: monty@emirates.net.ae
Subject: Epoxy Primer EP-420

Hi Warren, I missed you the last time you were in

Canada. I am using a Strontium primer that I get
from Endura in Edmonton. EP-PA SR 2 Part. Not
sure if this helps you considering where you are
located. What are you doing with the new doubler
on the wings for the 3500 upgrade. Are you
countersinking your rivets on the doubler. As you
know I have countersunk my leading edges and would
like to do the same on the doubler. Not sure I can
considering some rivets are 3/16 and 5/32. Any
suggestions?? I suppose I can flush the rest of
the leading edge and not do the doubler. Not sure
how that will look.
Gerry

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[mike.davis]

We have a builder here in Fairbanks who has 5
bays inboard, and 2 or 3 bays out near the tip as
fuel tanks. I'd have to check with him whether
MAM approved the mods for the tip tanks, but I do
know that they provided the inboard tank skins 2
bays longer for him instead of the 1 bay normally
associated with extended tanks.

When Mike Kimball and I went by to see his
project we asked why he wanted to carry so much
fuel... he calmly replied that he intended to
have the first turbo prop SR! Should be
interesting.

Mike

Warren , I have just completed the drilling of

the RH wing as as 3500. I have decided to flush
rivet the leading edge but not the doubler. I am
also working on possibly installing wing tip

tanks

that would give me 20 usg/wing. (120 usg) in

total

for all tanks. I have been in touch with MAM and
have sent them my proposed procedure and a bill

of

material for them to approve. It appears that I
may get an increased gross for full wing tanks.
They are doing the calculation. I am still

working

until Sept 14 then will retire AGAIN and return

to

building C-FISH full time .
Gerry

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[Warren T. Montgomery]

King Kong bladder and an iron butt?

We have a builder here in Fairbanks who has 5
bays inboard, and 2 or 3 bays out near the tip as
fuel tanks. I'd have to check with him whether
MAM approved the mods for the tip tanks, but I do
know that they provided the inboard tank skins 2
bays longer for him instead of the 1 bay normally
associated with extended tanks.

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