Jul 19, 2012, 05:49 AM
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Germantown, Maryland
Joined Apr 2004
4,457 Posts
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If the wing was made with too little resin, then it should be easy to simply rub epoxy through the surface and stick it in a vacuum bag to fix it.
Assuming that the core is not damaged, then all you need to do is rebond the skin to the foam. Bagged wings normally have porous skins, so epoxy that is rubbed on the outside surface will go right through to the foam. If it was bagged too dry, then it will be very porous. You need to use a laminating epoxy which will be thinner than typical hobby store epoxy and that will stay thin for a reasonable working time. You will need a bit of bagging mylar and a vacuum system. Just cut mylars to the size and shape of the wing. Make the mylars a bit short of the total wing span on the throwing blade side and make cutouts in the mylar for any linkages, horns or wiring that gets in the way. Wax the mylar, rub epoxy on the delammed area of the wing, wipe off excess epoxy with a paper towel. Close the wing in the mylars, cut foam blocks to go over protrusions like the throwing blade and linkages, tape those foam blocks in place and stick that all in the vacuum bag at maybe 18" HG. Normally you don't need to worry about the shape of the wing for fixing small delam areas, but with a broad area of delam, you may want to weight the wing down in a way that holds the correct twist in the area of the delam.
Hopefully you have vacuum bagging capability or a friend nearbay that does.
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