X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 5.2.1) with ESMTP id 2810646 for flyrotary@lancaironline.net; Thu, 20 Mar 2008 16:59:19 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([75.191.186.236]) by cdptpa-omta06.mail.rr.com with SMTP id <20080320205841.XBEC14418.cdptpa-omta06.mail.rr.com@edward2> for ; Thu, 20 Mar 2008 20:58:41 +0000 Message-ID: <000901c88acd$35bc70d0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Ceramic coated rotors Date: Thu, 20 Mar 2008 16:58:54 -0400 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 ----- Original Message ----- From: "Ernest Christley" To: "Rotary motors in aircraft" Sent: Thursday, March 20, 2008 2:09 PM Subject: [FlyRotary] Re: Ceramic coated rotors > Ed Anderson wrote: >> What I was thinking about was whether the relative cool fuel mixture >> intake impinging on the hot rotor housing material might cause sufficient >> thermal stress to cause it to flake. Probably no practical way to test >> for that. A more drastic test might be to heat up a coated rotor and >> spray it with water mist. > > That would be more drastic than marriage!? > > I don't have a spare rotor, but I do have various and sundry other pieces > of cast iron lying around. It'll be a relatively easy test to execute, > just a pain to prep for. I'll see what I can do with it though. > > -- You do have a valid point, Ernest - but while a marriage might reap havoc on a rotor project and test the "adherence" of a couple - I do not believe it would be a valid test of the adhesion of the ceramic coating {:>). Its probably not necessary - but just seemed prudent. Ed