X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [66.219.56.253] (HELO mail.qnsi.net) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3599963 for flyrotary@lancaironline.net; Tue, 28 Apr 2009 18:09:28 -0400 Received-SPF: none receiver=logan.com; client-ip=66.219.56.253; envelope-from=bhughes@qnsi.net Return-Receipt-To: "Bobby J. Hughes" MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C9C856.676CAB8C" Subject: RE: [FlyRotary] Re: Mocal Oil Cooler ECD54-182 Disposition-Notification-To: "Bobby J. Hughes" Content-class: urn:content-classes:message X-MimeOLE: Produced By Microsoft Exchange V6.5 Date: Tue, 28 Apr 2009 17:09:37 -0600 Message-ID: <74120FDE88CAFE4DBDA8814BCE20A3F30D85A5@qnsi-mail.qnsi.net> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: Mocal Oil Cooler ECD54-182 Thread-Index: AcnIUSgYdNNTKVHSQ8yz63JHknIOGQAA2Qcg References: From: "Bobby J. Hughes" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C9C856.676CAB8C Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Mike, =20 I have the largest (ECD54-329) plumbed between two 400 ci water radiators. I can tell you it is very effective. With my cowling off, extended full power ground runs I see oil temp trailing water temps by 40-50 degrees. Water at 180-200. With lower cowl only, same conditions, the oil tracks the water a little closer. 20-40 degrees. With full cowl the temps come up together and stay together after about 170 degrees. I really think the ECD54-182 would have worked. It would have also been much easer to plumb making the hoses between my dual radiators much shorter and lighter.=20 =20 Bobby ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mike Wills Sent: Tuesday, April 28, 2009 3:30 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Mocal Oil Cooler ECD54-182 Thanks, I understand the heat has to go somewhere. I havent done enough flight testing to say for sure, but what I have done so far seems to indicate that I have excess cooling capacity on the radiator side. Time will tell. If there is excess capacity, a water-oil exchanger will definitely simplify my installation considerably. =20 Mike Wills RV-4 N144MW ----- Original Message -----=20 From: wrjjrs@aol.com=20 To: Rotary motors in aircraft =20 Sent: Tuesday, April 28, 2009 11:56 AM Subject: [Norton AntiSpam] [FlyRotary] Re: Mocal Oil Cooler ECD54-182 Mike, You must upsize your radiator if you want to use the oil-to-water exchanger as your sole oil cooler. It should work but you still need enough heat exchanger to handle you BTU needs. So you would need a 20-30% bigger radiator for things to work. Bill Jepson =09 =09 -----Original Message----- From: Mike Wills To: Rotary motors in aircraft Sent: Tue, 28 Apr 2009 9:21 am Subject: [FlyRotary] Re: Mocal Oil Cooler ECD54-182 =09 =09 Todd, =20 Are you using this as your sole means of oil cooling, or as a supplement? I've always been intrigued by the idea of an oil-water exchanger, but have yet to hear of anyone successfully using one as a sole means of cooling a rotary in an aircraft application. Something like this would sure simplify my plumbing and eliminate some weight. I'm tempted. =20 Mike Wills RV-4 N144MW ----- Original Message -----=20 From: Todd Bartrim =20 To: Rotary motors in aircraft =20 Sent: Monday, April 27, 2009 11:57 PM Subject: [FlyRotary] Mocal Oil Cooler ECD54-182 Hi Guys Quite some while back Mark Sietle put a Mocal oil cooler in his plane, which I was quite impressed with. Recently I began watching ebay for one of these coolers and a few weeks ago I hit paydirt. IRC, Mark was using the C43-330 which is a fine looking piece of craftsmanship but are pricey little devils at $350 apiece. They are 330 mm long and a single pass. The E54 series offer 25% greater cooling in a comparable size, while the ECD54 series are dual core and have double the cooling capacity as the comparable size C43 cooler, but are prohibitively expensive at ~$800.=20 I managed to get mine for $275usd and it was still new, never used. The seller had 2 of them and since I only took one there is still another available. He indicated that he would re-list the other cooler on ebay, but I haven't seen it yet or I'd have just posted the listing. So if anyone is interested you can just contact him direct at chines@pendragon-design.com .=20 I'm very impressed with mine as it is a very fine piece of workmanship. It is only 182mm long but weighs in at just under 3lbs. Attached are a few pics of it disassembled. Thought I'd pass it along.=20 =09 Todd C-FSTB=20 ________________________________ -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html =09 =09 ________________________________ Can't afford a new spring wardrobe? Go shopping in your closet instead !=20 ------_=_NextPart_001_01C9C856.676CAB8C Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
Mike,
 
I have the largest (ECD54-329) plumbed between = two 400 ci=20 water radiators. I can tell you it is very effective. With my cowling = off,=20 extended full power ground runs I see oil temp trailing water temps by = 40-50=20 degrees. Water at 180-200.
With lower cowl only, same conditions, the oil = tracks the=20 water a little closer. 20-40 degrees. With full cowl the temps come up = together=20 and stay together after about 170 degrees. I really think the ECD54-182 = would=20 have worked. It would have also been much easer to plumb making the = hoses=20 between my dual radiators much shorter and = lighter. 
 
Bobby

From: Rotary motors in aircraft=20 [mailto:flyrotary@lancaironline.net] On Behalf Of Mike=20 Wills
Sent: Tuesday, April 28, 2009 3:30 PM
To: = Rotary=20 motors in aircraft
Subject: [FlyRotary] Re: Mocal Oil Cooler=20 ECD54-182

Thanks, I understand the heat has to go = somewhere.=20 I havent done enough flight testing to say for sure, but what I = have done=20 so far seems to indicate that I have excess cooling capacity on the = radiator side. Time will tell. If there is excess capacity, a water-oil=20 exchanger will definitely simplify my installation = considerably.
 
Mike Wills
RV-4 N144MW
----- Original Message -----
From:=20 wrjjrs@aol.com
Sent: Tuesday, April 28, 2009 = 11:56=20 AM
Subject: [Norton AntiSpam] = [FlyRotary]=20 Re: Mocal Oil Cooler ECD54-182

Mike,
You must upsize your radiator if you want to = use the=20 oil-to-water exchanger as your sole oil cooler. It should work but you = still=20 need enough heat exchanger to handle you BTU needs. So you would need = a 20-30%=20 bigger radiator for things to work.
Bill = Jepson


-----Original=20 Message-----
From: Mike Wills <rv-4mike@cox.net>
To: = Rotary motors=20 in aircraft <flyrotary@lancaironline.net>
Sent: Tue, 28 Apr = 2009 9:21=20 am
Subject: [FlyRotary] Re: Mocal Oil Cooler ECD54-182

Todd,
 
 Are you using this as your sole = means of=20 oil cooling, or as a supplement? I've always been intrigued by the = idea of an=20 oil-water exchanger, but have yet to hear of anyone successfully using = one as=20 a sole means of cooling a rotary in an aircraft application. Something = like=20 this would sure simplify my plumbing and eliminate some weight. I'm=20 tempted.
 
Mike Wills
RV-4 N144MW
----- Original Message -----
From:=20 Todd = Bartrim=20
To: Rotary motors in = aircraft=20
Sent: Monday, April 27, 2009 = 11:57=20 PM
Subject: [FlyRotary] Mocal = Oil Cooler=20 ECD54-182

Hi Guys
    Quite some while back = Mark=20 Sietle put a Mocal oil cooler in his plane, which I was quite = impressed=20 with. Recently I began watching ebay for one of these coolers and a = few=20 weeks ago I hit paydirt. IRC, Mark was using the C43-330 which is a = fine=20 looking piece of craftsmanship but are pricey little devils at $350 = apiece.=20 They are 330 mm long and a single pass. The E54 series offer 25% = greater=20 cooling in a comparable size, while the ECD54 series are dual core = and have=20 double the cooling capacity as the comparable size C43 cooler, but = are=20 prohibitively expensive at ~$800.
    I managed = to get=20 mine for $275usd and it was still new, never used. The seller had 2 = of them=20 and since I only took one there is still another available. He = indicated=20 that he would re-list the other cooler on ebay, but I haven't seen = it yet or=20 I'd have just posted the listing. So if anyone is interested you can = just=20 contact him direct at chines@pendragon-design.com .=20
    I'm very impressed with mine as it is a very = fine=20 piece of workmanship. It is only 182mm long but weighs in at just = under=20 3lbs. Attached are a few pics of it disassembled.
Thought I'd = pass it=20 along.

Todd
C-FSTB=20
--
Homepage:  http://www.flyrotary.com/
Archive and=20 UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.htm= l
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