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Old 15th September 2007 | 04:48
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Dave_Jackson
 
Joined: Apr 2003
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From: Vancouver, BC, Canada
2007: Centennial of the Helicopter?
The American Helicopter Society's Current News;
2007: Centennial of the Helicopter?

Interesting article in the above.
Engineering Analysis of the 1907 Cornu Helicopter by Dr. Gordon Leishman


Is 2007 the Centennial?

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