Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Thu, 28 Aug 2003 22:21:41 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m03.mx.aol.com ([64.12.136.6] verified) by logan.com (CommuniGate Pro SMTP 4.1.3) with ESMTP id 2561194 for lml@lancaironline.net; Thu, 28 Aug 2003 20:22:55 -0400 Received: from Newlan2dl@aol.com by imo-m03.mx.aol.com (mail_out_v36_r1.1.) id q.15c.2325f708 (15898) for ; Thu, 28 Aug 2003 20:22:36 -0400 (EDT) Received: from aol.com (mow-m30.webmail.aol.com [64.12.137.7]) by air-id09.mx.aol.com (v95.12) with ESMTP id MAILINID91-3e1a3f4e9ccc1df; Thu, 28 Aug 2003 20:22:36 -0400 X-Original-Date: Thu, 28 Aug 2003 20:22:36 -0400 From: Newlan2dl@aol.com X-Original-To: lml@lancaironline.net ("Lancair Mailing List") Subject: Re: [LML] Engine Cowl-heat damage MIME-Version: 1.0 X-Original-Message-ID: <1A91B6DC.02EBED96.026C00A3@aol.com> X-Mailer: Atlas Mailer 2.0 X-AOL-IP: 12.152.176.210 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit If I rememebr right, Fiberfrax was a very heat resistant material but transmitted a lot of heat through it so it wasn't a particularly good insulator. Maybe somebody else has some specifics. What I'm going to be testing with a L -IV cowling where heat damage has ocurred is a material we make from particially carbonized PAN fiber (Polyacrylo-nitrile like the the PAN based structural carbon but it's non-conductive and not very strong. But it has great temperature resistance and insulating values. I will be trying it in 1/8" and 1/4" thick blankets. These will be covered with water proof aluminized high temp glass fabric. I'll report the results when we are done. Dan Newland