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From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [FlyRotary] dynamic balancing
To: flyrotary
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Date: Thu, 03 Oct 2002 19:07:49 -0400
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Posted for "Mike Wills" <willsm@spawar.navy.mil>:
At 02:27 AM 10/3/2002 -0400, you wrote:
>  To those of you who have built up your engines already (or have 
>purchased an engine from Bruce or another builder), did you or your 
>builder take this step before final assembly, or did you simply put 
>everything back together and trust in faith that the spinning masses will 
>be harmonious in their inter-relationships?  All comments welcome and 
>appreciated.
>
>       <Marv>
Marv,

   My engine came from Bruce T. We discussed balancing based on Leon 
Promet's comments here awhile back. Leon is a strong proponent of balancing as 
I recall. However, Bruce wasnt convinced of the need and he convinced me that 
it wasnt necessary. Had I decided to do it, I believe he has a local contact 
who can do the work for a couple hundred $.

Mike Wills


[A Google search on "13B dynamic balancing" sent me to Hayes Rotary on the 
left coast and their website recommends doing it for engines designed to 
operate at 7k rpm and up (at least that's how their advertising read to me). 
 Based on that, Bruce's recommendation, and Ed's comments, I suspect I'll 
probably be foregoing that activity as well.  Thanks for the input.

         <Marv>              ]