X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 14 Jan 2010 08:01:03 -0500 Message-ID: X-Original-Return-Path: Received: from [70.62.14.124] (HELO ustek.com) by logan.com (CommuniGate Pro SMTP 5.3.1) with ESMTP id 4082246 for lml@lancaironline.net; Thu, 14 Jan 2010 07:17:13 -0500 Received-SPF: pass receiver=logan.com; client-ip=70.62.14.124; envelope-from=r.simon@ustek.com Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01CA9513.C014882E" X-MimeOLE: Produced By Microsoft Exchange V6.5 Subject: RE: In Flight Engine Fire Extinguishers X-Original-Date: Thu, 14 Jan 2010 07:18:58 -0500 X-Original-Message-ID: In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: In Flight Engine Fire Extinguishers Thread-Index: AcqVE7/Qo9TraymoR5yeobHvi3M2Jg== References: From: "Lancair" X-Original-Sender: "Robert Simon" X-Original-To: "Valin & Allyson Thorn" , This is a multi-part message in MIME format. ------_=_NextPart_001_01CA9513.C014882E Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Valin, =20 I discussed the application with an engineer at a fire estinguisher company. He said that this kind of equipment would work fine in a boat because the Halon would be contained below deck. In an aircraft at 150kt+ and a fire under a cowling that was purposly designed to transit a lot of air, the Halon would be blown overboard and likely do no good. It would work if you could get the plane onto the ground before blowing the bottle.=20 =20 Robert M. Simon ES-P N301ES ________________________________ From: Valin & Allyson Thorn [mailto:thorn@starflight.aero]=20 Sent: Wednesday, January 13, 2010 8:19 AM To: lml@lancaironline.net Subject: In Flight Engine Fire Extinguishers As part of our risk management strategy, we want to install an engine fire extinguishing system in our Legacy under construction. We've zeroed in on this Halon 1301 based system from Safecraft. See screen shot from Aircraft Spruce's website:=20 We'd appreciate comments and advice from the community regarding choice of systems and installation recommendations. Some specific questions are: * Would a single 5 lb bottle provide enough Halon concentration to extinguish an in-flight fire? * Do we need to route discharge lines to the cowling inlets to ensure we're getting the Halon throughout the compartment when discharged for a fire? * Has anyone had an engine fire that was successfully extinguished in flight? * We're trying to eliminate mechanical connections to the instrument panel to make it easy to remove for maintenance (eg. No push pull cables, etc.). Anyone have experience with setting up for electrically actuating a system? * Etc. =20 ------_=_NextPart_001_01CA9513.C014882E Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
Valin,
 
I discussed the application with an engineer = at a fire=20 estinguisher company.  He said that this kind of equipment would = work fine=20 in a boat because the Halon would be contained below deck.  In an=20 aircraft at 150kt+ and a fire under a cowling that was purposly = designed to=20 transit a lot of air, the Halon would be blown overboard and likely do = no=20 good.  It would work if you could get the plane onto the ground = before=20 blowing the bottle.
 
Robert M. = Simon
ES-P = N301ES
From: Valin & Allyson Thorn=20 [mailto:thorn@starflight.aero]
Sent: Wednesday, January 13, = 2010 8:19=20 AM
To: lml@lancaironline.net
Subject: In Flight = Engine Fire=20 Extinguishers

As = part of=20 our risk management strategy, we want to install an engine fire = extinguishing=20 system in our Legacy under construction.  We’ve zeroed in on = this Halon=20 1301 based system from Safecraft.  See screen shot from Aircraft = Spruce’s=20 website:

 We’d=20 appreciate comments and advice from the community regarding choice of = systems=20 and installation recommendations.  Some specific questions=20 are:

          &n= bsp;        ·        =20 Would a=20 single 5 lb bottle provide enough Halon concentration to extinguish an = in-flight=20 fire?

·        =20 Do = we need to=20 route discharge lines to the cowling inlets to ensure we’re = getting the Halon=20 throughout the compartment when discharged for a = fire?

·        =20 Has = anyone=20 had an engine fire that was successfully extinguished in=20 flight?

·        =20 We’re trying=20 to eliminate mechanical connections to the instrument panel to make it = easy to=20 remove for maintenance (eg. No push pull cables, etc.).  Anyone = have=20 experience with setting up for electrically actuating a=20 system?

·        =20 Etc.

 

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