X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [66.219.56.248] (HELO qnsi-xch.qnsi.net) by logan.com (CommuniGate Pro SMTP 5.1.9) with ESMTP id 2078607 for flyrotary@lancaironline.net; Fri, 01 Jun 2007 10:48:16 -0400 Received-SPF: none receiver=logan.com; client-ip=66.219.56.248; envelope-from=bhughes@qnsi.net Content-class: urn:content-classes:message Return-Receipt-To: "Bobby J. Hughes" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Disposition-Notification-To: "Bobby J. Hughes" Subject: RE: [FlyRotary] RV-7a cooling - continued! X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Date: Fri, 1 Jun 2007 09:49:15 -0600 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] RV-7a cooling - continued! Thread-Index: AcekByT/lYFmSCMxSAGjAbTbCGbp5AAW74lw From: "Bobby J. Hughes" To: "Rotary motors in aircraft" =20 " Bobby Hughes said he had seen data indicating a wedge duct had the highest pressure near the end of the wedge and lower pressure near the opening." I can't find the post but maybe someone else has it or remembers who posted it. Could have been on PL's listed also.=20 If I remember correctly a one inch square grid was mapped and measured on the backside of a radiator. The top side was a wedge of some sort. I do not remember if the measurements were pressure or airspeed. The data indicated that more air was flowing through the core at the narrow end of the wedge and less air as the wedge opened up toward the source.=20 Bobby