PPRuNe Forums - View Single Post - Why no negative pitch?
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Old 1st Mar 2016, 10:18
  #13 (permalink)  
ericferret
 
Join Date: Dec 2005
Location: England
Posts: 1,459
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I seem to recall that the Westland Wasp had negative pitch to glue it to the deck.
That would be with old tech blades with limited twist.
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