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Date: Wed, 7 Mar 2012 14:13:24 -0600
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Subject: Re: [FlyRotary] Re: Radiators
From: Mark Steitle <msteitle@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Bill,

I don't think Gordon is running a rotary, so the 2/3 - 1/3 rule
probably doesn't apply.  I have no idea what the water-oil ratio of is
for a 4.3L Chevy V-6, but I'd bet that info is available somewhere on
the internet.

Mark

On 3/7/12, William Jepson <wrjjrs@gmail.com> wrote:
> Gordon, the oil cooling required in a rotary is higher than a standard
> I.c.e. The oil cooling is about 1/3 of the total cooling. There are lots =
of
> "rules of thumb" on cooling. Typically about 3 ci of heat exchanger per h=
p.
> That would be divided 2/3 water and 1/3 oil cooling. Ducting changes thin=
gs
> dramatically but that is a start.
> Bill Jepson
> On Mar 7, 2012 7:20 AM, "Gordon Alling" <gordon@acumen-ea.com> wrote:
>
>> I=92m thinking about radiators for my 13B Defiant.  I=92ve noted some
>> automotive radiators integrate oil and transmission fluid cooling with t=
he
>> engine coolant heat exchanger.  Has anyone looked at these as a means of
>> integrating the oil and water cooler for an aircraft application?  Does
>> anyone have an estimate of the oil and transmission heat load in a typic=
al
>> GMC 4.3 L  Jimmy?****
>>
>> ** **
>>
>> Gordon C. Alling, Jr., PE****
>>
>> President****
>>
>> *acumen* *Engineering/Analysis, Inc.*****
>>
>> ** **
>>
>> 540-786-2200****
>>
>> www.acumen-ea.com****
>>
>> ** **
>>
>