The Murphy Builders Site

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From: JimsRebel <JimsRebel@aol.com>
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Date: Sat, 18 Apr 1998 00:07:03 EDT
To: murphy-rebel@dcsol.com
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Subject: Ailerons-LPS
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HI all
LPS comes in three types LPS1 , LPS2 , LPS3
LPS1 is a greaseless Lubricant and is found on most A&P's tool boxes.
LPS2 is a general purpose ,,, not used as much.
LPS3 is the one to use for long term proctection.. This used to be Boeings
choice for all their aircraft. They applied it as thick as they could get it
to stick on the metal. They Developed BOESHIELD T-9 which dries to a clean
waxy film , I haven't used T-9 but LPS3 never seems to dry and is very slimy
to the touch.
All of these are in Aircraft Spruce , they were giving out there 1998
catalog
for free 1 800 824-1930 <A HREF="">http://www.aircraft-spruce.com</A>
or on there WEB site.
I strongly recommend getting it if you dont have one , its a great info
source.

Regarding Ailerons spacing to the skin , I havent covered mine yet and I am
planing on changing the top row of rivets to the countersinking (dimple the
holes) I am worried that the fabric on the top skin will rub and wear in
this
area. I am also planing on putting metal covering instead of fabric in the
flaps ( I plan on splitting them to flaps and ailerons) ...
Jim JimsRebel@aol.com



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Date: Sat, 18 Apr 1998 23:29:15 -0400
From: David James <dmjames@planeteer.com>
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Subject: Re: Ailerons-LPS
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JimsRebel wrote:

snip... I am also planing on putting metal covering instead of fabric
in the
flaps...snip

Jim - I hope you realize what this involves, the ailerons are fabric
covered to avoid potential problems with aileron flutter. If you are
going to cover then with aluminum you have to balance them such that the
centre of gravity of the finished aileron is in front of the hinge.
With the short distance between the hinge and the leading edge the only
practical method is to construct a spade sticking ahead of the aileron
below the wing. Wayne O'Shea of Midland did this with the factory's
knowledge. I think his weights were 7 to 8 lbs per side.

David James
Rebel 228




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