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Old 06-19-2012, 10:02 PM   #19
ApK
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Join Date: Feb 2010
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Quote:
Originally Posted by mncowboy View Post
There are helicopters that have coaxial, counter-rotating props. Also the Wyvern, a British turboprop airplane drove a coaxial prop.
Just thought I'd throw that in!

Sure but the example he gave to illustrate involved rotating your fingers in opposite directions, which would be ...um...hard to do coaxially, so clearly that was not the property he was looking for.
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