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From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: Prop choice
To: lml
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Date: Sun, 11 Dec 2005 13:56:18 -0500
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Posted for "Mark & Lisa" <marknlisa@hometel.com>:

  NachrichtChristian,
  
  How did you come to the conclusion that Hartzell props make an engine run
  smoother?  My understanding is that Hartzell props are very particular about
  engine vibration -- there are many certified engines that require a
  restriction (yellow arc on the tach) on engine speeds due to particularly
  harmful vibrations for the installed Hartzell prop.  On the other hand, a
  properly balanced prop (aluminum or composite) should induce no vibration to
  the airframe.
  
  Of course, I could be totaly out to lunch.  If you have access to info/data
  that I don't I'd love to see it!
  
  Mark