Return-Path: Received: from ms-smtp-02.southeast.rr.com ([24.93.67.83] verified) by logan.com (CommuniGate Pro SMTP 4.1) with ESMTP id 2510248 for flyrotary@lancaironline.net; Sun, 03 Aug 2003 11:43:57 -0400 Received: from o7y6b5 (clt78-221.carolina.rr.com [24.93.78.221]) by ms-smtp-02.southeast.rr.com (8.12.5/8.12.2) with SMTP id h73Febmo014175 for ; Sun, 3 Aug 2003 11:40:40 -0400 (EDT) Message-ID: <000c01c359d7$3dd4c1e0$1702a8c0@WorkGroup> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Cooling? Date: Sun, 3 Aug 2003 11:52:28 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Tommy, my intake to exit area is approx 1.5 (not counting my louvers which would probably increase it a bit. However, mine might be a bit on the larger size and I probably lose some top speed to the increased drag. My opinion (not data) is that if your cooling problem only occured on the ground and not airborne then cooling fans MIGHT have merit. However, at flying airspeeds they might hinder airflow through the radiators more than help, just hard to tell. Ed Anderson ----- Original Message ----- From: "Tommy James" To: "Rotary motors in aircraft" Sent: Sunday, August 03, 2003 10:52 AM Subject: [FlyRotary] Cooling? > Ed and all, > What is the ratio of air-outlet area to air-inlet area on your plane? I > have read/heard it should be ~1.3x inlet area for ground and high power > output situations. > TJ<>< > > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html