X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 15 Dec 2009 13:37:20 -0500 Message-ID: X-Original-Return-Path: Received: from web62507.mail.re1.yahoo.com ([69.147.75.99] verified) by logan.com (CommuniGate Pro SMTP 5.3c3) with SMTP id 4022038 for lml@lancaironline.net; Tue, 15 Dec 2009 13:24:38 -0500 Received-SPF: none receiver=logan.com; client-ip=69.147.75.99; envelope-from=charliekohler@yahoo.com Received: (qmail 26345 invoked by uid 60001); 15 Dec 2009 18:24:03 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=Jw1zri8a2qBvvv4gDmnX0Mx0exp8pgTxgRrlw9qnRzanmHStqoZxckdBH7icfUZmGuX94P3irvzyxMS0n6WdjVjijlCvqVrS82W/SL98JGeBObMFkym7FGsxbPqBQ/LOi6cEH7xRbLoBZyRIU5kjJ7aaEzBq6DTC1fOR6UMBuPo=; X-Original-Message-ID: <910602.25377.qm@web62507.mail.re1.yahoo.com> X-YMail-OSG: VwuxLIMVM1lj8WmkmtIKfjJnOrmwnlzN_Y8xYkEMyZc67bBWebAio6MwEqyDtmKOIAmoT5E60FkuXyGhMGxamm4FlMq2dwMBrvjTX5aMokhq69tiycvA.CSY2pHTWp1ZTvNHs3tfZBRffY7TSQzYwdcuAtS2hK9FWMss7dQaJG4.qI4IvaLuQKhZcBJ3i.YrMsrDDP0asSUVVJdPZLLcDioGr84Df7NqR.riD1UyaZqZLW_OaXWQorNo7nxeIksrwxb02oA7Ng_viwzpje8Ed_f04cE.kW5ARL6c0QGR3j6Z0C9nq8q6dGQQLuHSDAm0RIyGy0Y4G9Mj4A4gyYAdY8qcikrrQ5DdPUXluW0A4js3P36lJzyWG7G8HZHVymLFQcz8ByvSN_l_qZgd6MXl1AJ11VKhrfaQL44IviXYdVguWDuJTYbawTdriBqWPPBEmAq5M_s8yCR7XuJ5gaezzMvbs_3TODel Received: from [68.204.29.145] by web62507.mail.re1.yahoo.com via HTTP; Tue, 15 Dec 2009 10:24:02 PST X-Mailer: YahooMailRC/240.3 YahooMailWebService/0.8.100.260964 X-Original-Date: Tue, 15 Dec 2009 10:24:02 -0800 (PST) From: Charlie Kohler Subject: Firewall X-Original-To: LancairList MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-1627965466-1260901442=:25377" --0-1627965466-1260901442=:25377 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable In the "for what it's worth column"--=0A=A0=A0=A0=A0 Subject: firewall blan= ket protection.=0A=A0=0ASeveral months ago I was removing my exhaust system= for top overhaul/Jet Hot coatings and was particularly interested in my fi= rewall blanket and several areas of the aluminized coating had come loose a= nd or off. I started to remove some of it and I discovered that BEHIND a pe= rfectly normal piece of the blanket I had a blackened/totally charred 6 inc= h in diameter piece of pre-preg firewall. =0AMy analysis was that during an= exhaust crack event well over a year ago had sprayed exhaust on the firewa= ll blanket from a distance of about 14 inches and while=A0the blanket=A0had= not discolored or gave any indication of thermal distress--the pre-preg be= hind it had not fared well at all. =0AAfter repairing the pre-preg I repair= ed the original blanket and put a 2000=B0 Thermo-Tec blanket on top. I have= since tested that combination-- and I am not too pleased.=0AI would have t= o say that the blanket protection we have is marginal at best. While my cra= cked exhaust event was probably in the neighborhood of two hours or more ex= posure-- I sincerely think we need to have a indication of what is going on= in our assessory section. We need to have a system that is error and false= alarm -free. A verification system of some sort to prevent panic/overreact= ion. =0AI am currently looking at--=0Ahttp://www.acroname.com/robotics/part= s/R67-UVTRON.html =0Abacked up (verified) by a standard outside air tempera= ture gauge placed in gascolator area.=0A=A0=0AAnyone have a better idea?=0A= =A0=0ACharlie K.=0A=0ASee me on the web at =0Awww.Lancair-IV.com=0A --0-1627965466-1260901442=:25377 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
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In the "for what = it's worth column"--

=0A

     Subject: firewall bl= anket protection.

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Several months ago I was removin= g my exhaust system for top overhaul/Jet Hot coatings and was particularly = interested in my firewall blanket and several areas of the aluminized coati= ng had come loose and or off. I started to remove some of it and I discover= ed that BEHIND a perfectly normal piece of the blanket I had a blackened/to= tally charred 6 inch in diameter piece of pre-preg firewall.

=0A

My a= nalysis was that during an exhaust crack event well over a year ago had spr= ayed exhaust on the firewall blanket from a distance of about 14 inches and= while the blanket had not discolored or gave any indication of t= hermal distress--the pre-preg behind it had not fared well at all.

=0A<= P>After repairing the pre-preg I repaired the original blanket and put a 20= 00=B0 Thermo-Tec blanket on top. I have since tested that combination-- and= I am not too pleased.

=0A

I would have to say that the blanket protec= tion we have is marginal at best. While my cracked exhaust event was probab= ly in the neighborhood of two hours or more exposure-- I sincerely think we= need to have a indication of what is going on in our assessory section. We= need to have a system that is error and false alarm -free. A verification = system of some sort to prevent panic/overreaction.

=0A

I am currently= looking at--

=0A

http://www.acroname.com/robotics/parts/R67-UVTRON.html <= /P>=0A

backed up (verified) by a standard outside air temperature gauge p= laced in gascolator area.

=0A

 

=0A

Anyone have a better ide= a?


 
=0A
Charlie K.
=0A
 
= =0A
See me on the web at
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