X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 30 [X] Return-Path: Received: from mx06.syd.iprimus.net.au ([210.50.76.235] verified) by logan.com (CommuniGate Pro SMTP 5.1.7) with ESMTP id 1872911 for flyrotary@lancaironline.net; Tue, 27 Feb 2007 23:18:23 -0500 Received-SPF: pass receiver=logan.com; client-ip=210.50.76.235; envelope-from=daval@iprimus.com.au Received: from 053.pth0511.pth.iprimus.net.au (HELO [192.168.1.8]) ([211.26.90.53]) by mx06.syd.iprimus.net.au with ESMTP; 28 Feb 2007 15:17:29 +1100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgAAAGmQ5EXTGlo1/2dsb2JhbAANpSUBAQE X-IronPort-AV: i="4.14,228,1170594000"; d="scan'208"; a="34209837:sNHT26189905" Mime-Version: 1.0 (Apple Message framework v624) In-Reply-To: References: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Message-Id: <678c3555b695b84356820e65d91faa8a@iprimus.com.au> Content-Transfer-Encoding: quoted-printable From: david mccandless Subject: Re: [FlyRotary] Re: cowl openings for water radiators Date: Wed, 28 Feb 2007 13:15:58 +0900 To: "Rotary motors in aircraft" X-Mailer: Apple Mail (2.624) Hi Ed, did you slit the cowls on the mould to remove them? If not, how did you=20= get the cured cowls off the mould? BR, Dave McC On 27, Feb , at 5:39 AM, Ed Anderson wrote: > John, don't know if these photos will help.=A0 But, like you I only = have=20 > between 3 and 6" of duct distance on the radiators.=A0 You should do = Ok=20 > with 20 sq inch on each opening with a good diffuser/duct.=A0 Attached=20= > are some photos of my current ducts.=A0 The openings are 18 sq inches=20= > each.=A0 I have had one opening down to as little as 10 square inches = -=20 > but that was a bit marginal - so opened it back up.=A0 I have a = generous=20 > exit area for the hot air including a larger 4" x 12" bottom opening=20= > as well as louvers on each side of the cowl.=A0 So you mileage could=20= > vary - but Tracy has essentially the same size opening as well as=20 > several others. > =A0 > Ed\=