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Old 04-17-2005 | 09:32 PM
  #9  
taylorcraft1947
 
Joined: Dec 2003
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From: Flushing, MI
Default RE: Will it Fly :)

This is all second hand, but here goes...

Several years ago, there were two brothers working on a plane for the SAE Aerodesign competition. It was a sizable plane with a 72"+ wingspan and 10"+ chord, and was powered by a K&B .60 engine. The wing was built-up with 3/32" ribs and a carbon fiber I-beam spar. Then the wing was wrapped with a thin carbon fiber skin. During the first flight, the aircraft would barely leave the runway with almost no weight (SAE Aerodesign is a weight lifting competition where the brothers were expecting to lift ~26+lbs). The plane then crashed while trying to climb out of ground effect. When the brothers held the broken wing up to the light they saw thousands of tiny holes through the carbon fiber skin (due to the weave of the fabric).

In other words, the concept would probably not work, except possibly at the right Reynolds number, and with the right screen, and airfoil, or with a huge amount of power, etc.

taylorcraft1947