X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 50 [XX] Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 04 Apr 2007 23:02:57 -0400 Message-ID: X-Original-Return-Path: Received: from bay0-omc2-s20.bay0.hotmail.com ([65.54.246.156] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 1967765 for lml@lancaironline.net; Wed, 04 Apr 2007 21:33:04 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.246.156; envelope-from=yakjock@msn.com Received: from BAY0-G3-SMTP2.phx.gbl ([65.54.234.179]) by bay0-omc2-s20.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.2668); Wed, 4 Apr 2007 18:32:17 -0700 X-Originating-IP: [24.20.65.236] X-Originating-Email: [yakjock@msn.com] Received: from hal2006 ([24.20.65.236]) by BAY0-G3-SMTP2.phx.gbl with Microsoft SMTPSVC(6.0.3790.2668); Wed, 4 Apr 2007 18:32:16 -0700 From: "Yakjock" X-Original-To: "'Lancair Mailing List'" Subject: Heat drag and speed records - The Macchi-Cactold MC-72 X-Original-Date: Wed, 4 Apr 2007 18:32:18 -0700 X-Original-Message-ID: <000001c77722$40643190$6501a8c0@hal2006> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 In-Reply-To: Thread-Index: Acd2oBkF6A4pdiO8Q7eSZt2MaMbZuQAfl+LA X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Original-Return-Path: yakjock@msn.com X-OriginalArrivalTime: 05 Apr 2007 01:32:17.0002 (UTC) FILETIME=[3ED3F4A0:01C77722] With the discussion on speed and heat drag I thought I'd remind folks of the Macchi-Castoldi MC-72. This piston powered airplane established a new speed record on October 23, 1934 of 440.5 mph after two previous attempts killed the pilots. The plane had two engines in line with counter-rotating props. Heat was dissipated by the installation of radiators over much of the surface area of the plane in order to reduce drag BTW, this world speed record still stands for piston powered....seaplanes. The MC-72 was on floats and had an open cockpit. It is a beautiful plane and can be viewed at www.airliners.net-open.file-0259224-m-.url I have an option to buy a Twinstar in about a year. My question is could Diamond use surface mounted radiators to cool the Thielert diesels? Hal Morley