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Date: Tue, 01 Dec 1998 20:39:59 -0500
To: lancair.list@olsusa.com
From: Marvin Kaye <marvkaye@olsusa.com>
Subject: No hard points??
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>>
I couldn't help but notice that the manual recommends that your cut & fit
the fiberfrax to the firewall, attach all the layers with silicone, and
then glue the stainless sheet over the top of them the same way.  I'm
curious about how much that fiberfrax compresses when you torque down the
engine mount attachment bolts... seems to me that the insulation would
compress considerably and allow the stainless sheet to dent inward  under
all that bolt pressure.  The little feet on the mount are only 2" in
diameter, and those [7/16"] bolts will be torqued to about 40ftlbs, seems
like more than enough to squash that insulation big time.  

With that said, wouldn't it make sense to build in some 2" square phenolic
hard points at each engine mount bolt location the same thickness as the
fiberfrax to keep that from happening, or am I worrying about a non-event
again?

   <Marv>