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    <title><![CDATA[Discussion on Video: X3 Eurocopter may usher in world's fastest helicopters ]]></title>
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    <item>
        <title><![CDATA[Please just go see it, there may be items you need]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6191-45767]]></link>
        <description><![CDATA[welcome to our company www.ifancyshop.com]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6191-45767]]></guid>
        <dc:creator><![CDATA[ainiqbgcr]]></dc:creator>
        <pubDate>Tue, 28 Jun 2011 06:03:35 -0700</pubDate>
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    <item>
        <title><![CDATA[It's a gyrocopter.]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6191-43298]]></link>
        <description><![CDATA[This is another redesign of the old gyrocopters of the 1920s and 1930s.In the 1970s NASA worked on a design where the rotor blades stopped spinning and became the fixed wings.  They never built it, but later Boeing built the smaller X-50 using the rotor/wing design.]]></description>
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        <dc:creator><![CDATA[Hates Idiots]]></dc:creator>
        <pubDate>Mon, 30 May 2011 10:47:34 -0700</pubDate>
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    <item>
        <title><![CDATA[It's simpler]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6191-42975]]></link>
        <description><![CDATA[The X-3, and a similar Sikorsky project, don't have rotating engines.  Easier to maintain.  That's why swing wing jet aircraft - F-111, F-14, Mig 23 - have been replaced with fixed designs.The high speed,  prop driven helo idea goes back to the AH-56 Cheyenne gunship of the '60s.]]></description>
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        <dc:creator><![CDATA[hoodedswan]]></dc:creator>
        <pubDate>Tue, 24 May 2011 10:44:08 -0700</pubDate>
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        <title><![CDATA[Isn't this just a V-22 Osprey without the rotating wing?]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6191-42970]]></link>
        <description><![CDATA[What advantages does the X3 have over the Osprey, which has a max speed of 287 mph and has a max vertical takeoff weight of 52,600 lb?]]></description>
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        <dc:creator><![CDATA[keitha73]]></dc:creator>
        <pubDate>Tue, 24 May 2011 10:17:26 -0700</pubDate>
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