Sender: <marv@lancaironline.net> (Marvin Kaye)
To: lml
Date: Tue, 04 Feb 2003 09:55:23 -0500
Message-ID: <redirect-2008765@logan.com>
From: Newlan2dl@aol.com
Subject: new aircraft-new engine break-in
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Hi folks

I've been reading about breaking in a new or rebuilt engine and also about 
testing your new plane.  The obvious conclusion is that they are really at 
odds.  With a new plane, you want to gradually work up to full speed before 
you explore the top end of the envelope.  The reverse is true of a new engine 
in that it needs to be run at high power settings to seat the rings and 
properly break in the cylinders.  So what do you engine guru's have to say?  
I've never done either break in, i.e. new plane or engine.

1.    Has there been a significant number of engine problems related to being 
poorly broken in while expanding the flight envelope?

2.    One person suggested buying a used engine that was already broken in.  
Any idea what that costs and the chances of getting a lemon?

3.    And some very knowledgable people participated in a discussion a couple 
of weeks ago about aircraft diesels.  How are they broken in?

Thanks for the help guys!

Dan