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Old 06-26-2010 | 03:02 PM
  #43  
804
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From: sheridan, IN
Default RE: Sound Control

ORIGINAL: bradpaul

I believe the major concern with prop ''ripping'' comes from the 40% TOC guys spinning 25 to 30 inch props powered by large powerful engines (DA 120-160). And the general consensus is a prop will ''rip'' at around 60% of supersonic.

Brad
My 22" prop on 53cc will do it, straight and level full throttle.
It would be interesting to know how much "extra" noise this causes in the air, it won't do it on the ground when sound testing.
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