Received-SPF: none
 receiver=logan.com; client-ip=66.98.204.64; envelope-from=bob@bob-white.com
Date: Mon, 4 Apr 2005 13:54:48 -0600
From: Bob White <bob@bob-white.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Break In Period?
Message-Id: <20050404135448.5b222f7e.bob@bob-white.com>
In-Reply-To: <list-854672@logan.com>
References: <list-854672@logan.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit


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)