X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf16aec.mail.bellsouth.net ([205.152.59.64] verified) by logan.com (CommuniGate Pro SMTP 5.1c.3) with ESMTP id 1350269 for flyrotary@lancaironline.net; Sat, 26 Aug 2006 20:10:08 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.64; envelope-from=ceengland@bellsouth.net Received: from ibm58aec.bellsouth.net ([209.215.60.200]) by imf16aec.mail.bellsouth.net with ESMTP id <20060827000918.DTLE17119.imf16aec.mail.bellsouth.net@ibm58aec.bellsouth.net> for ; Sat, 26 Aug 2006 20:09:18 -0400 Received: from [127.0.0.1] (really [209.215.60.200]) by ibm58aec.bellsouth.net with ESMTP id <20060827000917.FZWB12941.ibm58aec.bellsouth.net@[127.0.0.1]> for ; Sat, 26 Aug 2006 20:09:17 -0400 Message-ID: <44F0E2AB.6060603@bellsouth.net> Date: Sat, 26 Aug 2006 19:09:15 -0500 From: Charlie England User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Exhaust systems References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit tonyslongez@cox.net wrote: >Hello > >fellow rotary fliers I don't usually reply to this group as I've been tied up with the "other e-mail group" but all that aside, I have an idea that I would like to run by you guys as I hear this group is a little more open to ideas than the "other group". I've been reading about these heat issues, I think this might be an answere. Mcmaster Carr has this part# 8498K35 they have several different types of castable ceramics that have all sorts of properties -200 + 7000 deg F and this stuff is really strong, it cures room temp after 16 -24hrs depending on the type you buy. So what I'm prposing won't necessarily keep your exhaust from cracking do to improper fabrication, maybe we could cast a box around the exhaust to keep the radiant heat out of our cowlings. Maybe??? > >Tony > Interesting idea; is it strong enough to just cast a manifold? What would it weigh relative to the cast iron stock manifold?