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Old 21st March 2002 | 03:15
  #22 (permalink)  
Dave Jackson
 
Joined: Nov 2000
Posts: 452
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From: Vancouver, BC, Canada
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RW-1. .. .&gt;"... but if the heli losing lift begins that vertical descent, could they [the blades] handle the loads? Or would they bend back and snap ..."&lt; . .. .<a href="http://avia.russian.ee/vertigo/hiller_x-2-235-r.html" target="_blank">An interesting picture.</a>. .. .The 'intent' is to produce a beam similar to <a href="http://www.unicopter.com/1054.html" target="_blank">DESIGN: UniCopter ~ Rotor - Blade - NACA 00xx - Spar</a> out of pultruded carbon within the next six months. Hopefully, this will give a better understand of the strength, deflection and feasibility of the Really Rigid Rotor.. .. .Of course, the feathering bearings, hub, static mast and frame must also be much stronger.. .. ._______. .. .&gt;"... possible issues both positive and negative to a successful recovery using negative pitch?"&lt;. .. .Your idea about negative pitch may work, at least theoretically. You mentioned that "...the relative wind angle goes to nearly vertical in seconds ...". Like you said, this may require that the pitch go all the way down to -45 to -90-degrees, to initiate recovery. The rotor and blades will still have to be very strong, for all the previously discussed reasons. . .. .____________________. .. .CycleRick. .. .I would agree with RW-1's comments. . .Many more like that and RW might be promoted to RW+1. <img border="0" title="" alt="[Smile]" src="smile.gif" /> . .____________________. .. .Lu. .. .It will be interesting to understand more about this blade. Can you elaborate or suggest how and where to look.
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