PPRuNe Forums - View Single Post - Retreating Blade Stall No 2
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Old 18th May 2012 | 06:45
  #55 (permalink)  
AnFI
 
Joined: Dec 2008
Posts: 843
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From: N/A
Thanks for the spelling lesson, here's one about helicopters:


I was pretty clear: stall starts at peak AoA ..... if that leads to stall then larger AoA's are achieved further around the disk

I thought that was fairly clear - hence no contradiction.



As for
('pitch dis-symmetry' counters 'dis-symmetry of lift') - but that's another story...
- it's another story - but it's the reason helicopters used to have pilots, the feedback mechanism used to be; pilot looks out of the window and commands the attitude he desires - this results in "'pitch dis-symmetry' counters 'dis-symmetry of lift'" (using the cyclic pitch 'dis-symmetry' control)
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