Sender: <marv@lancaironline.net>
To:  lml@lancaironline.net
Date: Mon, 24 Mar 2014 22:04:36 -0400
Message-ID: <redirect-6794913@logan.com>
Received-SPF: none
 receiver=logan.com; client-ip=209.85.216.41; envelope-from=bob@bmackey.com
MIME-Version: 1.0
Subject: Gas Struts
From: bob mackey <n103md@yahoo.com>
Content-Type: multipart/alternative; boundary=001a11c1e878f38afe04f5608417

--001a11c1e878f38afe04f5608417
Content-Type: text/plain; charset=ISO-8859-1

Gas struts are sometimes used on aircraft because they are lighter or more
compact than the equivalent steel coil spring. They can also be designed to
have some damping capability.
On the other hand, they leak, lose force with time, and lose force with low
temperatures.

When the failure of the gas spring causes a safety hazard (LEG2 canopy), or
the possibility of airframe damage (LNC4 nosegear), it seems to me that
more more reliable alternatives should be considered. Steel torsion springs
and coil springs are a viable and reliable alternative.
The benefits could be improved safety, and one less thing to worry about or
routinely replace.

--001a11c1e878f38afe04f5608417
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Gas struts are sometimes used on aircraft because they are=
 lighter or more compact than the equivalent steel coil spring. They can al=
so be designed to have some damping capability.=A0<div>On the other hand, t=
hey leak, lose force with time, and lose force with low temperatures.=A0</d=
iv>
<div><br></div><div>When the failure of the gas spring causes a safety haza=
rd (LEG2 canopy), or the possibility of airframe damage (LNC4 nosegear), it=
 seems to me that more more reliable alternatives should be considered. Ste=
el torsion springs and coil springs are a viable and reliable alternative.=
=A0</div>
<div>The benefits could be improved safety, and one less thing to worry abo=
ut or routinely replace.=A0</div><div><br></div></div>

--001a11c1e878f38afe04f5608417--