X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-qy0-f180.google.com ([209.85.216.180] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTPS id 5432627 for flyrotary@lancaironline.net; Wed, 07 Mar 2012 16:33:20 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.216.180; envelope-from=wrjjrs@gmail.com Received: by qcsd15 with SMTP id d15so3657680qcs.25 for ; Wed, 07 Mar 2012 13:32:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=ejNdsoBDN9f3xEQfdxc/IRMPGJ6EuDzA2ep7Ueq/+kc=; b=J3bf35KQWqxqj5VK9RwQK+zFtUhUbjFeg5J8+/SQOKMnOFObPDnISIE7LTki8QBqqw NOzVjaw9ES/lZlA0Oo0UX5GjQfm9BhyiN2A51BxtMzrlf9mODSHgDXxwzEowFjcPbhKB TmdXyNaFY5D6CArjEjQZVD5bliWpqfKjsGTscEI5pp2d2xiVpESf+mID0nqJ1bCLVMbu ehE40cfDAfDA6CETITphR0+obyCPl2TZTu/DDV28VHUlQ9yPIfEQi82qe+emO+bokUCl XHTdO0s3cncpo7G3g6Ea5dydK1TYu4a7xrYmwHz9PlobPtOfYoTQsWwENweS8mksvFbN Owjw== MIME-Version: 1.0 Received: by 10.224.181.198 with SMTP id bz6mr2902403qab.74.1331155965507; Wed, 07 Mar 2012 13:32:45 -0800 (PST) Received: by 10.229.100.73 with HTTP; Wed, 7 Mar 2012 13:32:45 -0800 (PST) Received: by 10.229.100.73 with HTTP; Wed, 7 Mar 2012 13:32:45 -0800 (PST) In-Reply-To: References: Date: Wed, 7 Mar 2012 13:32:45 -0800 Message-ID: Subject: Re: [FlyRotary] Re: Radiators From: William Jepson To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=20cf303b3eb376f86d04baade6e3 --20cf303b3eb376f86d04baade6e3 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Mark, he said in a previous post that he was going to run 2 13Bs. A Defiant iirc. Gordon, the distribution of power is about the same for the rotary with a bit higher exhaust portion. Properly ducted about 2-3 cubic inches of heat exchanger still applies. Bill Jepson On Mar 7, 2012 12:14 PM, "Mark Steitle" wrote: > 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 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 lot= s > of > > "rules of thumb" on cooling. Typically about 3 ci of heat exchanger per > hp. > > That would be divided 2/3 water and 1/3 oil cooling. Ducting changes > things > > dramatically but that is a start. > > Bill Jepson > > On Mar 7, 2012 7:20 AM, "Gordon Alling" wrote: > > > >> I=92m thinking about radiators for my 13B Defiant. I=92ve noted some > >> automotive radiators integrate oil and transmission fluid cooling with > the > >> engine coolant heat exchanger. Has anyone looked at these as a means = of > >> integrating the oil and water cooler for an aircraft application? Doe= s > >> anyone have an estimate of the oil and transmission heat load in a > typical > >> GMC 4.3 L Jimmy?**** > >> > >> ** ** > >> > >> Gordon C. Alling, Jr., PE**** > >> > >> President**** > >> > >> *acumen* *Engineering/Analysis, Inc.***** > >> > >> ** ** > >> > >> 540-786-2200**** > >> > >> www.acumen-ea.com**** > >> > >> ** ** > >> > > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > --20cf303b3eb376f86d04baade6e3 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable

Mark, he said in a previous post that he was going to run 2 13Bs. A Defi= ant iirc. Gordon, the distribution of power is about the same for the rotar= y with a bit higher exhaust portion. Properly ducted about 2-3 cubic inches= of heat exchanger still applies.
Bill Jepson

On Mar 7, 2012 12:14 PM, "Mark Steitle"= ; <msteitle@gmail.com> wrot= e:
Bill,

I don't think Gordon is running a rotary, so the 2/3 - 1/3 rule
probably doesn't apply. =A0I have no idea what the water-oil ratio of i= s
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@gm= ail.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 lo= ts of
> "rules of thumb" on cooling. Typically about 3 ci of heat ex= changer per hp.
> That would be divided 2/3 water and 1/3 oil cooling. Ducting changes t= hings
> 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. =A0I=92ve noted= some
>> automotive radiators integrate oil and transmission fluid cooling = with the
>> engine coolant heat exchanger. =A0Has anyone looked at these as a = means of
>> integrating the oil and water cooler for an aircraft application? = =A0Does
>> anyone have an estimate of the oil and transmission heat load in a= typical
>> GMC 4.3 L =A0Jimmy?****
>>
>> ** **
>>
>> Gordon C. Alling, Jr., PE****
>>
>> President****
>>
>> *acumen* *Engineering/Analysis, Inc.*****
>>
>> ** **
>>
>> 540-786-2200****
>>
>> www.acumen-= ea.com****
>>
>> ** **
>>
>

--
Homepage: =A0http:/= /www.flyrotary.com/
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