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Thread: 2007: Centennial of the Helicopter?
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Old 5th January 2008 | 23:07
  #15 (permalink)  
Dave_Jackson
 
Joined: Apr 2003
Posts: 1,635
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From: Vancouver, BC, Canada
Mart,

Leishman's estimate of Ct/Sigma of 0.684 is based on a rotor speed of 85 rpm. My calculations are based on a rotor speed of 218 rpm, which is obtainable if the engine and belt work to expectations.

Dave
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