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Thread: best approach speed and techniques to avoid vortex ring condition
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Old 8th June 2017 | 11:01
  #33 (permalink)  
paco
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From: White Waltham, Prestwick & Calgary
According to the books I have here, the downwash velocity about 2 disc lengths below the machine is twice the induced velocity, so maybe getting anywhere near that may be a problem.

Phil
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