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From: "ED SIKORA" <planeman23@hotmail.com>
To: lancair.list@olsusa.com
Subject: Acrylic tubes for sight gages...
Date: Thu, 07 Dec 2000 16:15:10 
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>>
Just one more thought on the subject of Header tank sight gages.  ACS sells 
acrylic tube for this purpose and I have looked on the internet and found 
sources of thick walled acrylic tubes.  Is acrylic really compatible in 
direct contact with 100LL and Mogas.  I've prototyped a 3/4" OD tube with 
1/2" ID using an AN842 nipple elbow threaded into NPT threads (using hosol 
on the threads as I screwed it together).  Seems to make a good looking, 
shatter resistant, sight tube easily mountable to the panel using grommets 
and hose clamps.  I have not done any fuel compatibility tests yet...any 
chemists know of the long term effect of exposure to fuel (I did find that 
lots of acetone discolors - clouds up - the tube).

-Ed Sikora

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