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cowl delamination

 
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dogsbark(at)comcast.net
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PostPosted: Mon Dec 01, 2008 4:58 pm    Post subject: cowl delamination Reply with quote

Hey everyone,

I got my official response from Van's today regarding the problem cowl I own:

"If you'd noticed this prior to fitting the cowl, the easiest solution would
obviously have been to send a new top cowl. As it is now, I think it would be
less work to fix the cowl you have. It doesn't require any particular
composites skill beyond what is normal for RV building. There are no
structural concerns; the cowl is not a structural part - it's just there to smooth
airflow over the engine. You just want it to be stable and strong enough not
to be damaged in use.

I would attack the problem from the inside to avoid disturbing the out layer. If
you cut away the inner shell and core of the affected areas, you can lay up
more glass cloth on the inside of the outer shell to thicken and strengthen it.
It needs to overlap the cut edge so no core is left exposed.

You could remove the outer shell, leaving the core in place since it doesn't
seem to be bonded onto the shell, then reinstall the cut portion with some
resin onto the core. This may be easier than the first choice above, but has
the danger that you may disturb the surface so it is not so smooth as it is
now."

Vans

I don't fully agree with everything stated in Van's response. I'm still leaning toward a replacement...but thought it would be good to get any additional input to the above comments before proceeding. I also plan to visit this with my local EAA Tech Advisor that just happens to build Cozys.

Thanks,

Sean Blair
#40225






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chuck(at)chuckdirect.com
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PostPosted: Mon Dec 01, 2008 8:35 pm    Post subject: cowl delamination Reply with quote

Sean,
I agree with Van's. Far less work and just as good.
Chuck
do not archive
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