X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m22.mx.aol.com ([64.12.137.3] verified) by logan.com (CommuniGate Pro SMTP 5.0c1) with ESMTP id 681240 for flyrotary@lancaironline.net; Thu, 25 Aug 2005 01:27:51 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.3; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-m22.mx.aol.com (mail_out_v38_r4.1.) id q.db.2c45afa0 (2612) for ; Thu, 25 Aug 2005 01:27:01 -0400 (EDT) From: WRJJRS@aol.com Message-ID: Date: Thu, 25 Aug 2005 01:27:01 EDT Subject: Re: [FlyRotary] Re: Flamible brake fluid To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1124947621" X-Mailer: 9.0 SE for Windows sub 5017 X-Spam-Flag: NO -------------------------------1124947621 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable =20 In a message dated 8/24/2005 10:23:00 PM Pacific Standard Time, =20 WRJJRS@aol.com writes: =20 In a message dated 8/24/2005 6:32:17 PM Pacific Standard Time, =20 eanderson@carolina.rr.com writes: The more I research, the more brake fires I come across occurring in=20 experimental aircraft. However, it turns out the standard brake fluid is w= idely=20 used throughout general aviation as well as airlines - this is the standard= 5606=20 series. The flash point has ranged from 187F to 240F as some improvements=20 in flash point was made with each new formula up through Mil-P-5606H. =20 Attached in PDF format is a concise article from EAA chapter 493 about an=20 RV-8 brake fire and the crucial difference between the old standard and the= new=20 brake fluid Mil-H-83282. The new brake fluid is compatible in every way=20 with the standard - but has a flash point around 400F - almost twice that o= f our=20 standard brake fluid. It turns out the standard brake fluid has been=20 responsible for airliner crashes, GA crashes as well as numerous fires. =20 =20 Your brakes are hot enough even with moderate braking to immediate ignite=20 the standard brake fluid - if you have any kind of leak and the fluid conta= cts=20 the brake pads or rotor - its quite possible you will find your aircraft on= =20 fire as I did. =20 Naturally I strongly recommend a change to the H-83282 as soon as practical= =20 - like no later than your next annual/conditional inspection if not sooner.= =20 Me I'm doing it sooner. =20 Ed =20 Ed,=20 I have checked with several manufacturers who say their stuff is compatible= =20 with automotive fluids. I have no idea why we would put up with the flammab= le=20 aircraft stuff. Besides DOT 4 silicone fluid which has the advantage of not= =20 harming paint, I have been using various synthetics in my race bikes for=20 years which are good to better than 600=B0F! I have heard some older auto f= luids=20 are corrosive to aluminum but with the number of aluminum components on mod= ern=20 cars it MUST be less common. I have had all sorts of ALUMINUM BRAKE PARTS=20 including master cylinders on my bikes and never seen ANY problem. The airc= raft=20 fluid is simply stupid when compared to modern auto fluids. Sorry, forgot to sign Bill Jepson -------------------------------1124947621 Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable

In a message dated 8/24/2005 10:23:00 PM Pacific Standard Time,=20 WRJJRS@aol.com writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>

In a message dated 8/24/2005 6:32:17 PM Pacific Standard Time,=20 eanderson@carolina.rr.com writes:

The more I research, the more brake fires I come= =20 across occurring in experimental aircraft. However, it turns out t= he=20 standard brake fluid is widely used throughout general aviation as well=20= as=20 airlines - this is the standard 5606 series. The flash point has=20 ranged from 187F to 240F as some improvements in flash point was made wi= th=20 each new formula up through Mil-P-5606H.

Attached in PDF format is a concise article from= EAA=20 chapter 493 about an RV-8 brake fire and the crucial difference between=20= the=20 old standard and the new brake fluid Mil-H-83282. The new brake fl= uid=20 is compatible in every way with the standard - but has a flash point aro= und=20 400F - almost twice that of our standard brake fluid. It turns out= the=20 standard brake fluid has been responsible for airliner crashes, GA crash= es=20 as well as numerous fires.

Your brakes are hot enough even with moderate br= aking=20 to immediate ignite the standard brake fluid - if you have any kind=20 of leak and the fluid contacts the brake pads or rotor -=20= its=20 quite possible you will find your aircraft on fire as I did.

Naturally I strongly recommend a change to the H= -83282=20 as soon as practical - like no later than your next annual/conditional=20 inspection if not sooner. Me I'm doing it sooner.

Ed

Ed,

I have checked with several manufacturers who say their stuff is=20 compatible with automotive fluids. I have no idea why we would put up with= the=20 flammable aircraft stuff. Besides DOT 4 silicone fluid which has the advan= tage=20 of not harming paint, I have been using various synthetics in my race bike= s=20 for years which are good to better than 600=B0F! I have heard some older a= uto=20 fluids are corrosive to aluminum but with the number of aluminum component= s on=20 modern cars it MUST be less common. I have had all sorts of ALUMINUM BRAKE= =20 PARTS including master cylinders on my bikes and never seen ANY problem. T= he=20 aircraft fluid is simply stupid when compared to modern auto=20 fluids.

Sorry, forgot to sign

Bill Jepson

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