X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 18 Dec 2009 10:52:27 -0500 Message-ID: X-Original-Return-Path: Received: from mail3.dotsterhost.com ([72.5.54.189] verified) by logan.com (CommuniGate Pro SMTP 5.3c3) with SMTPS id 4027634 for lml@lancaironline.net; Fri, 18 Dec 2009 10:35:20 -0500 Received-SPF: pass receiver=logan.com; client-ip=72.5.54.189; envelope-from=aviation@trepicone.com Received: (qmail 23682 invoked from network); 18 Dec 2009 15:34:43 -0000 Received: from unknown (HELO ?192.168.0.2?) (aviation@trepicone.com@[173.88.61.253]) by 72.5.54.189 with SMTP; 18 Dec 2009 15:34:42 -0000 X-Original-Message-Id: From: Joe Trepicone X-Original-To: Lancair Mailing List In-Reply-To: Content-Type: multipart/alternative; boundary=Apple-Mail-4--624559606 Content-Transfer-Encoding: 7bit X-Mailer: iPhone Mail (7D11) Mime-Version: 1.0 (iPhone Mail 7D11) Subject: Re: [LML] Firewall X-Original-Date: Fri, 18 Dec 2009 10:34:40 -0500 References: --Apple-Mail-4--624559606 Content-Type: text/plain; charset=utf-8; format=flowed; delsp=yes Content-Transfer-Encoding: quoted-printable Below is Brad Simmon's actual account of the how well a fire blanket =20 did. You may want to read it again and do what you -as the =20 manufacturer of your aircarft- feel is best. We are in the process of repairing a IVP engine fire that was centered =20= on the passenger aft side of the engine compartment, and the firewall =20= blanket just barely did it's job. There is signifigant scorching =20 around the perimeter, through every penetration, and around the cowl =20 attach flange. Brad Simmons Airframes Inc. Milan, Sent from my iPhone On Dec 18, 2009, at 10:18 AM, "Steve Colwell" =20 wrote: > > > Years ago Van=E2=80=99s tested several factory built RV=E2=80=99s for = smoke =20 > penetration of the firewall. I remember they were amazed how much s=20= > moke they got thru what they thought were pretty tight electrical, c=20= > able and misc. fittings in a ground simulation. They tightened up t=20= > he obvious holes and used High Temp Silicone and still had an unacce=20= > ptable volume of smoke coming in. > > > > Fire or even an oil leak might have smoke that could prevent =20 > breathing long enough or obscure vision or be enough of a =20 > distraction (pick one or more) to set up a fatal scenario. This =20 > could have been a factor in the Watsonville crash. > > > > Steve Colwell Legacy > > > > --Apple-Mail-4--624559606 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Below is Brad Simmon's actual = account of the how well a fire blanket did.  You may want to read = it again and do what you -as the manufacturer of your aircarft- feel is = best. 
 

We are in the process of = repairing a IVP engine fire that was centered on the passenger aft side = of the engine compartment, and the firewall blanket just barely did it's = job. There is signifigant scorching around the perimeter, through every = penetration, and around the cowl attach flange.

Brad Simmons

Airframes Inc.

mcmess1919@yahoo.com> = wrote:

 

Years ago Van=E2=80=99s tested several factory built = RV=E2=80=99s for smoke penetration of the firewall.  I remember they were amazed how much = smoke they got thru what they thought were pretty tight electrical, cable and misc. = fittings in a ground simulation.  They tightened up the obvious holes and = used High Temp Silicone and still had an unacceptable volume of smoke coming in.  =

 

Fire or even an oil leak might have smoke that could = prevent breathing long enough or obscure vision or be enough of a distraction = (pick one or more) to set up a fatal scenario.  This could have been a factor = in the Watsonville crash.

 

Steve Colwell  Legacy

 

 

= --Apple-Mail-4--624559606--