I can no longer avoid making the various fiberglass ducts & whatnot for
my cooling systems.  Can anyone give me some useful citations on how to
work with fiberglass?  I don't have the first clue where to begin, so a
beginners book with enough meat to get me through the (hopefully simple)
task of building a few KN ducts would be great.

Mark:

I've followed this thread with some interest.  You are almost exactly where
I was 10 years ago.  You've received some good advice, but some very
questionable.  My advice, for what its worth:

1.  Stay away from the boat people.  Last I checked, most of them were still
working with polyester materials and resin.  That's a definite no-no for
aeronautical applications--especially anything structural.

2.  Check out www.sportair.com (or call 800-967-5746) for a SportAir
workshop near you.  The weekend workshop I attended ten years ago was the
best investment of $220 I ever made.  Lots of hands-on plus theory.

3.  Check out www.eaa.org to locate an EAA Chapter near you.  There is
probably someone building a composite plane in your area (I'm not sure where
you are.)  Buddy up with the more experienced types, they're generally very
helpful.

4.  My experience with epoxy resins runs counter to some reported here.  I
am less sensitive to epoxy than polyester resins.  However, either can do a
good job.  Another reason to get some OJT (on-job-training) before doing
your own thing.

5.  The sandwich technique works great, likewise foam molds for ducting.
Good luck!

Tom Parkes
Lancair ES


Klaus and I both get all our epoxy materials at our local West Marine
in Ventura Tom :) There is a store near you. Well maybe not but in
Phoenix for sure.

Paul Lamar ...No rotor no motor.

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