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	<title>Comments on: Radio Controlled Indoor/Outdoor Helicopter</title>
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		<title>By: Kyle Penniston</title>
		<link>http://www.coolest-gadgets.com/20060823/radio-controlled-indooroutdoor-helicopter/comment-page-1/#comment-13067</link>
		<dc:creator>Kyle Penniston</dc:creator>
		<pubDate>Wed, 23 Aug 2006 17:48:42 +0000</pubDate>
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		<description>One of Newton&#039;s Laws states that for every action there is an equal and opposite reaction.  In the case of helicopters, when you spin the rotor one direction, the body of the helicopter begins to spin the other direction, which is why real helicopters have a tail rotor mounted sideways.  Coordinating that in an R/C helicopter is simply too complicated.  If you instead mount a second main rotor spinning the opposite way at the same speed, Newton&#039;s Law is satisfied and you don&#039;t have to keep making minor adjustments to the helicopter&#039;s heading.</description>
		<content:encoded><![CDATA[<p>One of Newton&#8217;s Laws states that for every action there is an equal and opposite reaction.  In the case of helicopters, when you spin the rotor one direction, the body of the helicopter begins to spin the other direction, which is why real helicopters have a tail rotor mounted sideways.  Coordinating that in an R/C helicopter is simply too complicated.  If you instead mount a second main rotor spinning the opposite way at the same speed, Newton&#8217;s Law is satisfied and you don&#8217;t have to keep making minor adjustments to the helicopter&#8217;s heading.</p>
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