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Old 02-19-2004 | 05:54 AM
  #21  
LaGaffe
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From: Stockholm, SWEDEN
Default RE: V-Tail?
ORIGINAL: Spaced

All of my calcs have been based on coax helo formulas, so bringing them across to gyros has been an interesting experience.
I have a paper done by NACA on the best spacing for the rotors, which is 10%R. This seems to be the best mix between drag of the second rotor, and losses from the other rotor.
Being a NACA addict: which NACA TN/TM/Report?

tia
Torbjörn
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