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aeromat from aerospace composites

Old 11-16-2004, 09:37 AM
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Default aeromat from aerospace composites

I just received some aeromat from aerospace composites. Does anyone have any experience using this stuff as a stiffener when laying up a fuselage? I usually use white foam about 3/32" thick like most of the new composite patternships. Also, what weight of cloth and how may layers are most of you using when laying up a fuselage and using a core material as a stiffner. In the past I've used:

1st 2 oz cloth
2nd 1.7 oz kevlar from infront of wing tube to tail, 2.9 carbon from back of wing tube forward to nose
3rd foam inlay covered by 3/4oz cloth.

2 meter fuselage including cowl and canopy comes out about 28oz.

Kevlar is kind of hard to work with and would like to substitute glass cloth. Any suggestions would be greatly appreciated.

thanks,
todd schmidt
Old 11-16-2004, 07:52 PM
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Default RE: aeromat from aerospace composites

Hi Todd,

I have used the aeromat with mixed results. Are you bagging? IMO the aeromat comes out too heavy for what we are trying to do. I don't think you will be able to match the weight you are getting using the foam.

PS where are you getting 2.9 carbon from? $$$$$$$$$$$$ What about 1.7 Kevlar

TOM
Old 11-16-2004, 09:13 PM
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Default RE: aeromat from aerospace composites

Hi Tom,

You can get the 1.7 Kevlar and 2.9oz carbon at Aerospace Composites. CST Sales also has a good variety of Kevlar and Carbon cloth.

I laid up a test swatch of glass cloth and Aeromat in one of my molds. The aeromat conforms nice but seems to be resin thirsty. Makes the laminate good and stiff though.

Man, I wish I could get all the money back I've spent on composite experimentation!

Todd
Old 11-16-2004, 10:17 PM
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Default RE: aeromat from aerospace composites

Thanks Todd,

Yes the aeromat is a little resin thirsty, it helps to bag it. It does conform very nice, and it will get stiff.

Tom
Old 11-16-2004, 10:18 PM
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