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From: Dale Rogers <rogersda@cox.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Quiet
Date: Sat, 18 Sep 2004 17:57:05 -0400
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John Slade <sladerj@bellsouth.net> wrote:

[ Lynn Hanover]:  
>> Water temp 180 at cruise hot day climb 200. Oil temp 160 (ideal)
>> at cruise, 180 is OK, 210 hot day climb. Power goes down above 160 oil
>> temp.

> I've told by another well respected rotary expert that the REW is designed
> to run at 203 - 212F, that oil temp should be kept below 240F, and should
> never regularly go over 248F. Everywhere I go I hear different numbers for
> these limits. I'm using 5-30 Castrol Synthetic.
 
John, 

   One aspect of the disparity is the problem of where to 
measure the oil temp.  Mazda does it at the oil pan.  I 
believe that Lynn is doing it at an adapter block where 
the oil returns from the cooler to the rear housing.  It's 
going to be cooler there - and more relevant to the temp. 
at the bearings. 

Dale R.