Return-Path: Received: from imf21aec.mail.bellsouth.net ([205.152.59.69] verified) by logan.com (CommuniGate Pro SMTP 4.1.1) with ESMTP id 2545193 for flyrotary@lancaironline.net; Sun, 24 Aug 2003 18:25:47 -0400 Received: from TOSHIBAjhr ([209.214.14.127]) by imf21aec.mail.bellsouth.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with SMTP id <20030824222546.GZVD1847.imf21aec.mail.bellsouth.net@TOSHIBAjhr> for ; Sun, 24 Aug 2003 18:25:46 -0400 From: "John Slade" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] cooling and radiators Date: Sun, 24 Aug 2003 18:25:45 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 In-Reply-To: Importance: Normal >The tests he did on his website are very interesting and possibly encouraging to >those of us who have a canard with a NACA duct already installed. (Read that as not >having to do a lot of work to add P-51 style ducts, etc). Yep. Very interesting stuff. I noticed that he's running without any oil cooler at all. I also notice that he uses "turbulators" ahead of the NACA al la Eric Westland as I'm planning to do. As he says, a bit of augmentation may help too. See http://home1.gte.net/res08ahw/vg/index.htm > Any ideas about the possible cooling differences between a 160 hp Subaru and a >170 hp 13b? My thinking is that they would require a radiator approximately >the same size? That makes sense. Cooling requirements and HP tend to have a direct relationship. I'm hoping to make well over 200 HP, so I guess I'll need additional cooling. Another interesting note on Als web site is the changing airflow depending on attitude. It would be nice to have an on-dash reading of the airspeed difference either side of the rad. This way you can adjust the attitude for best cooling if needed. John Slade Cozy IV turbo 13B