REFLECTOR:RE:weak gas struts

Sat, 27 Dec 2003 11:15:28 -0600

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Dave Black wrote:

>Alex,
>
>  
>
>>I was going to ask why we do not use a spring cartridge device instead of
>>the nitrogen strut for the over center linkage, the difference is the
>>dampening effect of the gas strut... 
>>    
>>
>
>I suspect the gas strut is a good deal gentler on the gear mechanism than a
>spring would be. Without the gas strut, the gear's free-fall would be hastened
>by the spring and the force of the wind. It <could> slam up against the stops
>pretty hard. Of course, this would happen only during emergency gear
>extension. The normal extension cycle would be as gentle as always.
>
I would think that the hydraulic system would dampen the extension.  The 
hydraulic fluid has to flow past the dump valve as the gear extends.

John

>  
>

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Dave Black wrote:<br>
<blockquote type="cite" cite="mid3FED4CAD.E8413F9D@comcast.net">
  <pre wrap="">Alex,

  </pre>
  <blockquote type="cite">
    <pre wrap="">I was going to ask why we do not use a spring cartridge device instead of
the nitrogen strut for the over center linkage, the difference is the
dampening effect of the gas strut... 
    </pre>
  </blockquote>
  <pre wrap=""><!---->
I suspect the gas strut is a good deal gentler on the gear mechanism than a
spring would be. Without the gas strut, the gear's free-fall would be hastened
by the spring and the force of the wind. It &lt;could&gt; slam up against the stops
pretty hard. Of course, this would happen only during emergency gear
extension. The normal extension cycle would be as gentle as always.</pre>
</blockquote>
I would think that the hydraulic system would dampen the extension.&nbsp;
The hydraulic fluid has to flow past the dump valve as the gear extends.<br>
<br>
John
<blockquote type="cite" cite="mid3FED4CAD.E8413F9D@comcast.net">
  <pre wrap="">
  </pre>
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