Hubsan H109s X4 Pro high speed test09:14

This is second test with carbon fiber 9443 props. Highest achieved speed 20m/s after 6 minutes. Then it failed to maintain speed and altitude. You can find the quad setup details at RcGroups post: http://www.rcgroups.com/forums/showpost.php?p=35841255

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    1. Joe Kyser

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