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----- Original Message ----- From: "Russell Duffy" <13brv3@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Monday, April 19, 2004 8:51 PM
Subject: [FlyRotary] Re: water coolant percentages
Water will often freeze in the radiator if you do not have
anti-freeze, even if the engine is warm. <snip
I certainly can't prove this isn't true, but someone would sure have to
prove that it is, before I could believe it. I just don't see how rapidly
moving, hot water is going to freeze.
Rusty (ignorance is bliss)
Simple test - Next Jan-Feb when it is below zero some place north of you -
start off from your home (in the sunny South?) and drive north and never
shut down the engine until you are into the really cold weather - keep an
eye on your temp gage! It will eventually boil in the block while your
radiator is clogged with ice. I suspect there is a tremendous difference in
"delta T" and the radiator is therefore "super efficient" - and the hot
coolant coming out of the engine gets cooled from 180 or whereever it is in
the block to below 32F before it reaches bottom of rad.
David
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