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Old 08-16-2007 | 01:55 PM
  #5  
Dr Kiwi
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From: Chattanooga, TN
Default RE: APC Prop differences

APC E are rated at 190,000rpm/diameter (a 10" E prop would be safe at 19,000rpm).

APC SF are rated at only 65,000rpm/diameter (so you should not use a 10" SF prop at any more than 6500rpm)