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Kellett helicopter

hesham

CLEARANCE: Above Top Secret
Joined
May 26, 2006
Messages
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Hi,

it is the first time in my life to know that,the Kellett company
design a helicopter with tandem rotor.
http://www.google.com/patents?id=xElzAAAAEBAJ&pg=PA1950&dq=aviation+week+airplane&num=100
 

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