Return-Path: <13brv3@bellsouth.net> Received: from imf17aec.mail.bellsouth.net ([205.152.59.65] verified) by logan.com (CommuniGate Pro SMTP 4.1.3) with ESMTP id 2571442 for flyrotary@lancaironline.net; Mon, 08 Sep 2003 00:35:26 -0400 Received: from rad ([68.212.14.21]) by imf17aec.mail.bellsouth.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP id <20030908043526.ISZI17943.imf17aec.mail.bellsouth.net@rad> for ; Mon, 8 Sep 2003 00:35:26 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Howe oil/water coolers are history Date: Sun, 7 Sep 2003 23:35:27 -0500 Message-ID: <000001c375c2$a08853e0$0201a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C37598.B7B24BE0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C37598.B7B24BE0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I have three Setrabs, but I don't know what the P/N is. The biggest they made at the time. The picture quality is poor, but you get the idea. Lynn E. Hanover =20 Hi Lynn, =20 Thanks for the pic. Are you sure those are 13 row like you mentioned before? According to the Setrab info, a 13 row would only be 4.75 = inches long. Those sure look longer than that, but of course it's hard to = tell.=20 =20 In my original comparison, I looked at only the amount of tube length, = or primary cooling surface. If you look at overall area of the cooler, the Mazda unit seems much larger. The Mazda unit has a core that's 19.5 x 5 = x 2, for a volume of 195 cu in. The 640 Setrab has a core volume of about = 216 cu in, but appears to have almost 3 times the primary cooling surface = when you look at the number of tubes. I think I've confused myself even = more... =20 Cheers, Rusty =20 ------=_NextPart_000_0001_01C37598.B7B24BE0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

I have three
Setrabs, but I don't know what the P/N = is. The=20 biggest they made at the time. The
picture quality is poor, but you = get the=20 idea.

Lynn E. Hanover

 
Hi=20 Lynn,
 
Thanks = for the=20 pic.  Are you sure those are 13 row like you mentioned = before? =20 According to the Setrab info, a 13 row would only be 4.75 inches = long. =20 Those sure look longer than that, but of course it's hard to=20 tell. 
 
In my = original=20 comparison, I looked at only the amount of tube length, or primary = cooling=20 surface.  If you look at overall area of the cooler,=20 the Mazda unit seems much larger.  The Mazda = unit has=20 a core that's 19.5 x 5 x 2, for a volume of 195 cu in.  The=20 640 Setrab has a core volume of about 216 cu in, but appears = to have=20 almost 3 times the primary cooling surface when you look at the number = of=20 tubes.  I think I've confused myself even = more...
 
Cheers,
Rusty
 


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