From: RicArgente@cs.com
Message-ID: <0.9b882442.2573e4eb@cs.com>
Date: Mon, 29 Nov 1999 09:17:15 EST
Subject: Dynamic Prop/Engine Balancing
To: lancair.list@olsusa.com
Mime-Version: 1.0

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I happen to read an article from Kitplanes Magazine (September, 1997) 
regarding dynamic propeller/engine balancing and thought the following data 
would be of interest to some of you:

             Propeller/Engine Vibration Level Table

         IPS (inch/sec)                      Classification
         0.8 or Greater                       Dangerous
         0.4  -  0.8                             Rough
         0.2  -  0.4                             Moderately Rough
         0.1  -  0.2                             Fair
         0.1 or Less                          Smooth

As I mentioned before, my vibration level was reduced from Rough (0.45ips) to 
Smooth (0.08 ips).  Having flown N360ZR a couple of more hours after the 
balancing procedure was done just reinforces my initially findings, a much 
smoother aircraft all together!  Highly recommended.

Rick Argente
N360ZR
 
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