Return-Path: Received: from sccrmhc13.comcast.net ([204.127.202.64] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 853786 for flyrotary@lancaironline.net; Sun, 03 Apr 2005 21:20:55 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.202.64; envelope-from=techwelding@comcast.net Received: from dell (pcp08732020pcs.paduca01.ky.comcast.net[69.139.125.92]) by comcast.net (sccrmhc13) with SMTP id <2005040401200701600rtctke>; Mon, 4 Apr 2005 01:20:07 +0000 Message-ID: <000601c538b4$6cd4eed0$5c7d8b45@dell> From: "Ed Klepeis" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Cooling -Learned a lot Date: Sun, 3 Apr 2005 20:20:01 -0500 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Dear Ed I'm glad you think it might work I will be bringing it down to sun n fun for your opinion and ideas I have it mounted on one of jerry heys tailwind mounts. with my welding jig 13b eng in place I think it makes for a compact package. Regards Ed K techwelding@comcast.net ----- Original Message ----- From: "Ed Anderson" To: "Rotary motors in aircraft" Sent: Sunday, April 03, 2005 7:45 PM Subject: [FlyRotary] Re: Cooling -Learned a lot > Hi Ed K, > > The rad would have 100 sq inch more core face area and as much volume as > two > GM cores, so assuming the airflow is adequate and the engine power in the > same range as is common in our application of two GM cores - say 160 - > 190 > HP or there abouts, I can see no reason why it could not be made to work. > > BUT a lot would depend on the ducting and airflow. For instance if the > rad > is perpendicular to the air flow you get the maximum benefit. If the air > flow entering the core is too oblique an angle then you can get turbulence > at the entrance to the core passages hindering good cooling - or if the > exit > is obstructed by being two close to the firewall, or if the diffuser does > a > poor job - for a couple of examples. Having it exposed to the radiant > heat of a unshielded exhaust system could also have an adverse effect. So > the potential for adequate cooling is there - whether it does or not > depends > on how its installed and other factors mentioned. > > Ed A. > > > ----- Original Message ----- > From: "Ed Klepeis" > To: "Rotary motors in aircraft" > Sent: Sunday, April 03, 2005 7:04 PM > Subject: [FlyRotary] Re: Cooling -Learned a lot > > >> Dear Ed >> How about a rad 16x18x2.25 with a mazda oil cooler along side > mounted >> in a sq tube frame hung under the eng mount in rubber mounts, could you >> go >> for such a set up. let me know. >> > regards Ed K >> > > > >>> Homepage: http://www.flyrotary.com/ >>> Archive: http://lancaironline.net/lists/flyrotary/List.html