Quieter blades from Eurocopter!!

[RkyMtnHI]

This is very cool.. hope the link works.

 

dp

 

 

 

http://gizmodo.com/5481081/the-blade-that-...s-almost-silent

[Lindsey]

Posted already by permison.

 

http://helicopterforum.verticalreference.c...showtopic=12777

 

[PhotoFlyer]

Closed for housekeeping purposes.