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     1. 03:48 PM - Re: Best Prop for HR 2 (Jim Ayers)
 
 
 

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Time: 
03:48:48 PM PST US
Subject: 
Re: Best Prop for HR 2
From: 
Jim Ayers <lessdragprod@aol.com>
      
      
      Hi John,
      
      I didn't know that you've flown one of these Rocket 4 blade MT Propellers. 
       :-)
      
      Rainer, in Germany, is likely going to be limited to 2500 RPM maximum.
      
      An F-1 customer with the 3 blade Rocket propeller says the 4 blade MT Rocke
      t propeller is 2 knots sower at 4,000'.
      But faster at 9,500' and 10,500'.
      
      John.  I know this doesn't work for your typical flight.  The highest altit
      ude you reach being when you climb to pattern altitude.  :-)
      
      Jim Ayers
      
      
      -----Original Message-----
      From: John Harmon <hr2pilot@aol.com>
      Sent: Sat, Dec 4, 2010 9:32 pm
      Subject: Re: Rocket-List: Best Prop for HR 2
      
      
      But it sucks for performans
      
      Sent from my iPhone
      
      On Dec 4, 2010, at 8:31 PM, Jim Ayers <lessdragprod@aol.com> wrote:
      
      
      Hello Rainer,
      
      The quietest propeller is probably the 4 blade propeller, 
      MTV-14-B/190-59b
      with a 76" diameter (190cm diameter).
      
      Regards,
      Jim Ayers
      
      
      -----Original Message-----
      From: Rainair <RaReubelt@aol.com>
      Sent: Sat, Dec 4, 2010 11:41 am
      Subject: Rocket-List: Best Prop for HR 2
      
      
      Hello,
      what the best prop for HR2 ?
      [F3YR-1ARF7693DF*1] Hartzell 3-Blade Propeller (D Twist)
      [M2YR-1BF/8475D4] Hartzell 2-blade Propeller
      [MTV-9-B/198-52] MT 3-bladed propeller 
      [MTV-9-B-C/C-198-52] MT 3-Bladed Propeller 
      Maybe important is the noise. Which db are the propellers ?
      At germany i need 75 decibel
      Which Prob to quiet down ?
      Thanks,
      ainer
      
      
      ead this topic online here:
      http://forums.matronics.com/viewtopic.php?p=322285#322285
      
      
      ttachments: 
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