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Old Dec 31, 2012, 07:59 AM
Registered User
United States, OH, Cuyahoga Falls
Joined Apr 2006
224 Posts
Discussion
wing vaccum bagging and fiberglass

Hi,

I am going to sheet my foam cores with balsa but I was wondering if anybody has ever used fiberglass fabric between the foam cores and the sheeting for added strength. I was thinking of using 3/4 oz weight for the fiber glass fabric and to either use epoxy resin or something like gorilla glue. The wings are for a laser 200 25%

Thanks for your inputs,

Le fou
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Old Dec 31, 2012, 10:25 AM
NMPRA 86T
ScorpionRacing's Avatar
United States, FL, Winter Haven
Joined Jan 2008
163 Posts
Le Fou,
I do it all the time for my 424 & 426 class pylon racer wings. I do the very thin v-tails (http://sempra.org/phpBB3/viewtopic.php?f=8&t=35) and the main wing (http://sempra.org/phpBB3/viewtopic.php?f=8&t=34) very similarly. By adding some fiberglass cloth in the trailing edges, it allows me to really thin the TE and have it remain very stiff.

I do not like using the polyurethane glues however; it is no where near the stiffness of the laminating resin wings.

Best wishes,

Scott Smith
NMPRA district 7 VP
SEMPRA President
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