Mailing List flyrotary@lancaironline.net Message #19761
From: Bob White <bob@bob-white.com>
Subject: Re: [FlyRotary] Break In Period?
Date: Mon, 4 Apr 2005 13:54:48 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

Hi Joe,

The instructions I got from Bruce Turrentine was to limit RPM's to 4500
for 5 hours on the ground, then 6000 for the next 15 hours.  Flight
during this period only if 6000 is adequate.  He wants to keep temps
below 200 F during this time also.

I don't know how much is needed vs CYA, but I figure after that much
running time I will have a good feeling about reliability of the system.

Bob W.


On Mon, 4 Apr 2005 12:32:23 -0700
<joeh@pilgrimtech.com> wrote:

> I have a friend who bought a new engine form "Hayes Rotary" up here in
> Redmond, WA.  These guys are very knowledgeable guys.  They told him
> to keep the RPM's under 4000 for the first 1,000 - 1,500 miles to
> allow the engine to "break in".  
>
>  
>
> I've never heard of this for rotaries. That represents about 20 hrs of
> running before first take-off in an airplane (assuming more than idle
> RPM).  
>
>  
>
> Is this needed?
>
>  
>
> Joe Hull
>
> Bellevue, WA
>
> Cozy MK IV
>
>


--
http://www.bob-white.com
N93BD - Rotary Powered BD-4 (real soon)
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