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Thread: Sikorsky X2 coaxial heli developments.
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Old 10th December 2009 | 03:48
  #551 (permalink)  
Hunt3r
 
Joined: Dec 2009
Posts: 11
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From: California
Cmon... 250 knots... 106 knots is pitiful for a design that could reach above that with some turbojets.
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