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Message-ID: <1b4b137c0711151043w9d28b34v74393f4661c4f5db@mail.gmail.com>
Date: Thu, 15 Nov 2007 13:43:41 -0500
From: "Tracy Crook" <tracy@rotaryaviation.com>
Sender: rwstracy@gmail.com
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Harrison cores
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I am absolutely amazed at how well the GM evap. core is cooling the oil on
my 20B installation.  Cooling well at WOT on the ground!  I would have
previously thought this was not possible with a thick heat exchanger.  It
does have the best diffuser I've built to date on it and has prop blast into
it.

Tracy

On Nov 15, 2007 1:33 PM, <Lehanover@aol.com> wrote:

>  The Harrison built (same as Corvette radiator) used in air conditioning
> in full sized GM cars are designed to flow a major amount of air. They are
> cheap even when bought new. They transfer heat as good as anything you can
> find. They are compact. Two of them can dump the heat from most any rotary
> installation. Two of them for coolant and one for oil has been proven in a
> number of installations.
>
> If you want less cooling drag build the radiators into the wing skins like
> a Supermarine racer.
>
> I raced for years with one Harrison core for oil cooling in front of the
> water radiator. A poor installation with heated air going through the water
> radiator, but it worked just fine.
>
> Lynn E. Hanover
>
>
>
>  ------------------------------
> See what's new at AOL.com <http://www.aol.com/?NCID=AOLCMP00300000001170>and Make
> AOL Your Homepage<http://www.aol.com/mksplash.adp?NCID=AOLCMP00300000001169>
> .
>

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<div>&nbsp;</div>
<div>I am absolutely amazed at how well the GM evap. core is cooling the oil on my 20B installation.&nbsp; Cooling well at WOT on the ground!&nbsp; I would have previously thought this was not possible with a thick heat exchanger.&nbsp; It does have the best diffuser I&#39;ve built to date on it and has prop blast into it.
</div>
<div>&nbsp;</div>
<div>Tracy<br><br></div>
<div class="gmail_quote">On Nov 15, 2007 1:33 PM, &lt;<a href="mailto:Lehanover@aol.com">Lehanover@aol.com</a>&gt; wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div style="FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Arial"><font face="Arial" color="#000000" size="2">
<div>The Harrison built (same as Corvette radiator) used in air conditioning in full sized GM cars are designed to flow a major amount of air. They are cheap even when bought new. They transfer heat as good as anything you can find. They are compact. Two of them can dump the heat from most any rotary installation. Two of them for coolant and one for oil has been proven in a number of installations.
</div>
<div>&nbsp;</div>
<div>If you want less cooling drag build the radiators into the wing skins like a Supermarine racer. </div>
<div>&nbsp;</div>
<div>I raced for years with one Harrison core for oil cooling in front of the water radiator. A poor installation with heated air going through the water radiator, but it worked just fine. </div>
<div>&nbsp;</div>
<div>Lynn E. Hanover</div></font><br><br><br>
<div><font style="FONT: 10pt ARIAL, SAN-SERIF; COLOR: black">
<hr style="MARGIN-TOP: 10px">
See what&#39;s new at <a title="http://www.aol.com?NCID=AOLCMP00300000001170" href="http://www.aol.com/?NCID=AOLCMP00300000001170" target="_blank">AOL.com</a> and <a title="http://www.aol.com/mksplash.adp?NCID=AOLCMP00300000001169" href="http://www.aol.com/mksplash.adp?NCID=AOLCMP00300000001169" target="_blank">
Make AOL Your Homepage</a>.</font></div></div></blockquote></div><br>

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