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Old 6th October 2006 | 23:07
  #13 (permalink)  
Graviman
 
Joined: Nov 2004
Posts: 1,334
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From: Cambridgeshire, UK
Yes, the autorotation is as if the rotor was at the helicopter base! They are switched off below ~5kph wind, so no useful power generation.

Proven energy offer teetering rotors, which behave more like a heli autorotating. They actually use flapback to align on the wind, so rotor always downwind of mast.

This does beg the question: Any difference between autos in teetering and rigid?

Originally Posted by Nick Lappos
The typical collective pitch is ... about +2 degrees at bottom collective to +18 to 20 degrees at max ...
So 1g hover about +7 to 8 degrees @75% span (assuming max 3g margin).


Mart

Last edited by Graviman; 7th October 2006 at 17:49. Reason: By VRS i really meant the stagnation around turbine...
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