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Old 20th March 2007 | 19:16
  #34 (permalink)  
Whirlygig

Hovering AND talking
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Joined: Feb 2003
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From: Propping up bars in the Lands of D H Lawrence and Bishop Bonner
Vertically i.e. perpendicular to the ground is not clever due to no forward speed and possibility of vortex ring state. Us helicopters don't like that. We don't need as much horizontal distance but we do need some!

Cheers

Whirls
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