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Subject: chicken plates?
Date: Mon, 11 Mar 2002 18:29:38 -0800
Message-ID: <D32786B4C9CB8C4AB70680F761506575030F11@dewey.Cadwell.cadwell.com>
Thread-Topic: chicken plates?
Thread-Index: AcHJbiE7esy7kV4+QM6fWZzEXuwo+Q==
From: "Carl Cadwell" <CarlC@Cadwell.com>
To: <lancair.list@olsusa.com>
Cc: <jschroeder@perigee.net>
X-Mailing-List: lancair.list@olsusa.com
Reply-To: lancair.list@olsusa.com

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          <<  Lancair Builders' Mail List  >>
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>>
John Schroeder asked what re chicken plates are.

There is probably a correct nomenclature for the chicken plates.  They
are about 1x3" and 1/8" thick.
The plates are installed around the windshield, at the mating line of
the top and bottom and around the rear pressure bulkhead apparently to
prevent the IVP from being topless after pressurization. It also keeps
it from growing too fat from pressurization.  A flat head machine screw
(#10 or 12?) is placed through each one from the outside.  A locknut and
washer is installed on the inside.

I can't imagine the need for any on an ES.

Every square foot at 5 psi is holding about 700# outward force.  Wow!
Think how much pressure is on that windshield. IF it is 10 sq ft of area
it is 7000 pounds.  Man I hope I did not embarrass myself with my
physics.

Carl Cadwell, a non-engineer
N25CL IVP


[I think they're actually called reinforcement plates, and don't forget the
eight that are mounted in the floor just outboard of the hydraulic/fuel
line tunnel, 4 in front and 4 behind the spar.

   <Marv>       ]



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