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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#2 Re: aero 03/13/2010 2:49 AM
	A crude answer: Newton's Third Law. Push air down; the helicopter goes up. More detail: Look up wings or airfoils, and see how thrust, lift, and drag work. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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jack of all trades Guru Join Date: Sep 2006 Location: Auckland, New Zealand Posts: 8777 Good Answers: 376	#3 Re: aero 03/14/2010 3:04 PM
	Try here http://en.wikipedia.org/wiki/Helicopter __________________ jack of all trades
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Anonymous Poster (1); jack of all trades (1); Tornado (1)

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