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Date: Thu, 25 Aug 2005 14:38:04 -0400
From: Ernest Christley <echristley@nc.rr.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Flamible brake fluid
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WRJJRS@aol.com wrote:

> Bob,
>  You are correct about the flashpoint comment, however we are talking 
> about a REAL flamability issue with mineral-oil-based aircraft brake 
> fluid. Not only does it (aero fluid) boil at low temps it *_supports_* 
> combustion. For our purposes both are bad things. Brake fires are 
> virtually unheard of at car races. That with rotors glowing orange 
> 800-900°F?! It seems absurd that we don't use the best and safest 
> product available.
> Bill Jepson

Bill, the technical section of Matco's site says to use DOT 5 (at least, 
for all the master cylinder's that I've looked at).  Would any DOT 5 do, 
or are there strange variations that will ruin the seals if one isn't 
careful?

If it is available, I'd prefer to get something along the lines of the 
Lockheed 550 that Lynn mentioned (though, I don't plan on replacing it 
every other race 8*).  Such a small amount is required, that it doesn't 
really cost much to go from the very cheapest to the very best.  I just 
don't want to inadvertantly destroy the master cylinder O-rings in the 
process.

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