X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.93.47.44] (HELO ms-smtp-05-eri0.texas.rr.com) by logan.com (CommuniGate Pro SMTP 5.0.2) with ESMTP id 854036 for flyrotary@lancaironline.net; Thu, 01 Dec 2005 23:20:36 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.93.47.44; envelope-from=RDarrah@austin.rr.com Received: from dell (cpe-66-69-251-170.austin.res.rr.com [66.69.251.170]) by ms-smtp-05-eri0.texas.rr.com (8.12.10/8.12.7) with SMTP id jB24JhB4024097 for ; Thu, 1 Dec 2005 22:19:49 -0600 (CST) Message-ID: <001a01c5f6f7$b5ff7560$6401a8c0@austin.rr.com> From: "Bob Darrah" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Brake fluid flash point Date: Thu, 1 Dec 2005 22:20:16 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0017_01C5F6C5.68055FA0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0017_01C5F6C5.68055FA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageEd, No, you are not wrong. If it is below the flash point, it will not = continue to burn if ignited. Bob Darrah ----- Original Message -----=20 From: Ed Anderson=20 To: Rotary motors in aircraft=20 So am I wrong in assuming that a fluid with twice is high a flash = point as a similar fluid requires more heat to ignite it?? Ed A ----- Original Message -----=20 From: Bob Darrah=20 To: Rotary motors in aircraft=20 Sent: Thursday, December 01, 2005 10:46 PM Subject: [FlyRotary] Brake fluid flash point Ed, Me thinks that maybe you have a misunderstanding of the term "flash = point". It is not what most people assume it is. I say this because = the flash point of the gas in your tank is something like 60 degrees = BELOW 0. That means that on a hot day, the temperature could exceed the = flash point by 160 degrees and you don't see too many people concerned = about that. Bob Darrah ----- Original Message -----=20 From: Ed Anderson=20 To: Rotary motors in aircraft=20 Sent: Thursday, December 01, 2005 7:43 PM Subject: [FlyRotary] Re: fuel/brake lines Rusty, I went with the new high flash point aircraft brake fluid = (MIL-H-83282)- flash point is 450F vs 240F for the old stuff. I had to = get a gallon of the stuff (enough to probably last me for years and = years and years), but after the fire, I feel a bit more comfortable that = it won't go up with the temp a little over the boiling point of water. = I considered some of the auto brake fluids - but have heard some horror = stories about incompatibility with aircraft seals - I know there is some = DOT formulas that supposedly are compatible - but did not feel like = experimenting {:>) Ed ------=_NextPart_000_0017_01C5F6C5.68055FA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Ed,
 
No, you are not wrong.  If it is below the = flash point,=20 it will not continue to burn if ignited.
 
Bob Darrah
----- Original Message -----
From:=20 Ed=20 Anderson
 
So am I wrong in assuming that a fluid with = twice is=20 high a flash point as a similar fluid requires more heat to ignite=20 it??
 
Ed A
----- Original Message -----
From:=20 Bob=20 Darrah
To: Rotary motors in = aircraft=20
Sent: Thursday, December 01, = 2005 10:46=20 PM
Subject: [FlyRotary] Brake = fluid flash=20 point

Ed,
 
Me thinks that maybe you have a misunderstanding = of the=20 term "flash point".  It is not what most people assume it = is.  I=20 say this because the flash point of the gas in your tank is = something like=20 60 degrees BELOW 0.  That means that on a hot day, the = temperature=20 could exceed the flash point by 160 degrees and you don't see too = many=20 people concerned about that.
 
Bob Darrah
----- Original Message ----- =
From:=20 Ed Anderson
To: Rotary motors in = aircraft=20
Sent: Thursday, December = 01, 2005=20 7:43 PM
Subject: [FlyRotary] Re: = fuel/brake=20 lines

Rusty,
 
I went with the new high flash point = aircraft brake=20 fluid (MIL-H-83282)- flash point is 450F vs = 240F for=20 the old stuff.   I had to get a gallon of the stuff = (enough to=20 probably last me for years and years and years), but after the = fire, I=20 feel a bit more comfortable that it won't go up with the temp a = little=20 over the boiling point of water.  I considered some of the = auto brake=20 fluids - but have heard some horror stories about incompatibility = with=20 aircraft seals - I know there is some DOT formulas that supposedly = are=20 compatible - but did not feel like experimenting = {:>)
 
Ed
 
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