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Super light Covering Material

Old 09-30-2010, 12:29 PM
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DeferredDefect
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Default Super light Covering Material

Hello!

I'm working on a very large sailplane model that requires the lightest covering available. The wingspan is 300 inches, with a 48 inch chord.
What covering material is available that would be the best bet for lightness and price?If you know of a non-iron on(AKAplastic sheet) I would go for that as well.

Thanks,

Graeme
Old 09-30-2010, 02:45 PM
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Default RE: Super light Covering Material

You might try Reynolds Plastic wrap. Comes is several colors and I have several friends who use it on their sailplanes and small electrics. They also use  Microlite cover which is very light but it is an iron on.
Old 10-01-2010, 11:53 AM
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Default RE: Super light Covering Material



What are the properties of the plastic wrap? Does it shrink when heated? How is it adheared to the frame?

Thanks for the reply!

Graeme

Old 10-01-2010, 03:17 PM
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Default RE: Super light Covering Material



The plastic wrap is glued to the framework. Most of them I have seen are done with a glue stick like kids use in school. The plactic wrap will shrink, just be careful and don't get it so hot it melts.

Old 10-01-2010, 08:58 PM
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Default RE: Super light Covering Material

Thats cool!  Is it any lighter than other comparative materials. Will any plastic wrap work?

Thanks again,

Graeme
Old 10-01-2010, 10:06 PM
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Default RE: Super light Covering Material

Graeme,

For 25 feet of wingspan and 100 sqft of wing area, I would recommend using full scale techniques and materials.

You may need more than 500 sqft of covering material; hence, cost and time are to be considered.

Wing loading (possitive and negative pressures) may be too high for any glue or plastic material to hold to the frame.

Regards!
Old 10-02-2010, 01:46 PM
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Default RE: Super light Covering Material

What is used on aircraft similar to human powered aircraft? How is it applied, and is there a cheap supplier of it?

Thanks!

Graeme
Old 10-02-2010, 04:48 PM
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Default RE: Super light Covering Material

Unfortunately, I don't know that, Graeme.[]

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