RkyMtnHI Posted February 27, 2010 Report Share Posted February 27, 2010 This is very cool.. hope the link works. dp http://gizmodo.com/5481081/the-blade-that-...s-almost-silent Link to comment Share on other sites More sharing options...
Lindsey Posted February 27, 2010 Report Share Posted February 27, 2010 Posted already by permison. http://helicopterforum.verticalreference.c...showtopic=12777 Link to comment Share on other sites More sharing options...
PhotoFlyer Posted February 27, 2010 Report Share Posted February 27, 2010 Closed for housekeeping purposes. Link to comment Share on other sites More sharing options...
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