Don,

Here is my simple solution to exhaust gas discoloring the paint.  It is a piece of thin stainless which has been in place at least 4 years.   (when I put it on, I thought it would probably fall off)

 

Bob Belshe
Moraga, CA
Lancair 235/320  
http://home.comcast.net/~rbelshe/

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From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of dskeele@bellsouth.net
Sent: Saturday, April 12, 2008 7:41 AM
To: lml@lancaironline.net
Subject: [LML] Re: carbon-carbon composites

Bob,

    Do you have a solution to a problem where the exhaust gasses exit the cowling area and have "chared " the epoxy airframe.  I've seen this on a couple of LN-2's I've worked on, some others only just have discoloration of the paint in this area. 

   Obviously, a solution was to move the exhault pipes down away from the fulislage, by either cutting and rewelding the tips, or shimming the system. 

   Would a Carbon/Carbon or other high end "patch" etc be effective ?? Would appreciate your comments.  Don Skeele   A&P