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Added weight from fiberglass ???


Old 09-22-2005, 09:30 PM
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Default Added weight from fiberglass ???

I was wondering how much weight fiberglassing adds to a normal 29% cap232 if done properly? Would this be a lot heavier than just monokote and by approximately how much considering the paint factor? Thanks
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Old 09-25-2005, 02:38 PM
Ed Smith
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Default RE: Added weight from fiberglass ???

Approximately it works this way.

If glassing over sheet balsa a maximum of 3/4 ounce cloth is used. 3/4 ounce cloth weighs 3/4 ounce/square yard. The recommended cloth to resin ratio is the same weight of each. So glassing will add weight at the rate of 1 1/2 ounces/square yard of surface area. I will let you do the arithmetic.

Also take into account the amount of filler/finishing resin/primer used to fill the weave prior to painting. As an example, my Q500 racer wing (500 sq", 1000sq" total, of course) covered with plastic film weighs 16 ounces. The same wing glassed (Vacuum Bagged) filled, primed and painted weighs 20 ounces

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