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Old Jul 24, 2007, 11:13 PM
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Scarey's Avatar
Joined Jan 2006
1,045 Posts
Why aren`t most foam planes made with EPP or equivalent.

Most of the foam planes are made with EPS or "beer cooler foam" EPP or equivalent like foam is so much more sturdy an reistant to dings and crashes.
Multiplex and Walkera use it. I dont have to glass it unlike EPS.
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Old Jul 24, 2007, 11:20 PM
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rdeis's Avatar
United States, CO, Colorado Springs
Joined Aug 2003
6,588 Posts
It's heavy and flexible.

Flying works better when the material is light and rigid.

There are manufacturing and cost issues, too, but forme the weight and rigidity are most important. I can glass it and end up stronger, stiffer, and still lighter and cheaper than EPP.
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