X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 30 May 2007 12:00:53 -0400 Message-ID: X-Original-Return-Path: Received: from smtp4.na.baesystems.com ([63.164.202.13] verified) by logan.com (CommuniGate Pro SMTP 5.1.9) with ESMTP id 2074708 for lml@lancaironline.net; Wed, 30 May 2007 10:52:25 -0400 Received-SPF: none receiver=logan.com; client-ip=63.164.202.13; envelope-from=Christopher.Zavatson@baesystems.com Received: from smtp2.na.baesystems.com (smtp2.na.baesystems.com [10.40.96.13]) by smtp4.na.baesystems.com (8.13.6/8.13.6) with ESMTP id l4UEpKg9011143 for ; Wed, 30 May 2007 10:51:20 -0400 (EDT) Received: from GLDMS00006.goldlnk.rootlnka.net ([10.44.64.12]) by smtp2.na.baesystems.com (8.13.6/8.13.6) with ESMTP id l4UEpgCs022885 for ; Wed, 30 May 2007 10:51:42 -0400 (EDT) Received: from gldms10602.goldlnk.rootlnka.net ([10.64.39.19]) by GLDMS00006.goldlnk.rootlnka.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 30 May 2007 10:51:42 -0400 Received: from GLDMS10607.goldlnk.rootlnka.net ([10.64.39.20]) by gldms10602.goldlnk.rootlnka.net with Microsoft SMTPSVC(6.0.3790.1830); Wed, 30 May 2007 07:51:41 -0700 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C7A2CA.07E24BF8" Subject: RE: [LML] Re: Electrical Fire X-Original-Date: Wed, 30 May 2007 07:51:40 -0700 X-Original-Message-ID: In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [LML] Re: Electrical Fire Thread-Index: AceixjIUrMDvgMhpTJ6Yo7BCo3GCKgAAG7ug References: From: "Zavatson, Christopher J \(US SSA\)" X-Original-To: "Lancair Mailing List" X-OriginalArrivalTime: 30 May 2007 14:51:41.0185 (UTC) FILETIME=[086DB710:01C7A2CA] This is a multi-part message in MIME format. ------_=_NextPart_001_01C7A2CA.07E24BF8 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable <> As of about eight years ago when I last worked on fire suppression systems in military combat vehicles, Halon was the only agent that could extinguish a fire and still leave a breathable atmosphere. At the time, Halon was the only agent approved for human occupied areas. Unfortunately it is an ozone depleting substance, so non-occupied areas were being converted to other agents. Halon was being recovered and banked for exclusive use in occupied areas. Unless something new has come around in recent years, Halon is the only agent I would discharge in a small confined space like a cockpit. =20 Chris Zavatson N91CZ 360std www.N91CZ.com =20 ------_=_NextPart_001_01C7A2CA.07E24BF8 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

<<John's message=20 has triggered a prior question I've had... What is the best type = of on=20 board fire extinguisher?

My limited understanding is that Halon = (and/or=20 Halon substitutes) work by absorbing/consuming oxygen - which makes = them=20 effective at extinguishing fires. However, it seems perhaps that = isn't=20 something that I'd want to trigger when I'm still in the (sealed) = cabin (since=20 I need the O2 as=20 well).

Thoughts/comments???>>

As of = about eight=20 years ago when I last worked on fire suppression systems in military = combat=20 vehicles, Halon was the only agent that could extinguish a fire and = still leave=20 a breathable atmosphere. At the time, Halon was the only agent = approved=20 for human occupied areas. Unfortunately it is an ozone depleting=20 substance, so non-occupied areas were being converted to other = agents. =20 Halon was being recovered and banked for exclusive use in occupied = areas. =20 Unless something new has come around in recent years, Halon is the only = agent I=20 would discharge in a small confined space like a cockpit.

Chris = Zavatson

N91CZ

360std

www.N91CZ.com

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