X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.100] (HELO ms-smtp-01-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3.5) with ESMTP id 1020305 for flyrotary@lancaironline.net; Fri, 24 Jun 2005 10:22:31 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-065-188-083-049.carolina.res.rr.com [65.188.83.49]) by ms-smtp-01-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j5OELhBI004515 for ; Fri, 24 Jun 2005 10:21:44 -0400 (EDT) Message-ID: <000f01c578c8$0ce3b890$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Brake Line Incident Photos Date: Fri, 24 Jun 2005 10:21:43 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000C_01C578A6.84AA6170" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_000C_01C578A6.84AA6170 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Yes, John - luck and a quick acting nephew {:>). The only answer I can = come up with is that the aluminum line suffered a fatigue fracture which = weakened the tube and the hydraulic pressure finally blew out the chunk. = The line has a loop to provide flexing as the caliper moves in and out = - but, flexing aluminum is not know for a long life. In all fairness, = there are many RVs flying with this configuration - so the break might = be attributed to my installation (stressing the line when I put the loop = in it), material weakness, some damage I did not notice, etc. Had over = 300 landings before the failure. Ed ----- Original Message -----=20 From: John Slade=20 To: Rotary motors in aircraft=20 Sent: Friday, June 24, 2005 9:09 AM Subject: [FlyRotary] Re: Brake Line Incident Photos Wow, Ed! You're luck the airplane wasn't consumed. My question - how did that big chunk get blown out of the brake line? Regards, John -----Original Message----- From: Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net]On Behalf Of Ed Anderson Sent: Friday, June 24, 2005 8:58 AM To: Rotary motors in aircraft Subject: [FlyRotary] Brake Line Incident Photos For those interested (and may not have seen them) , here are a few = photos of my brake line fire incident. Big chunk got blown out of brake line as can be seen from = Brakelines.jpg photo. Effect of resin burning seen on wheel pant = photos. Once the line broke, the next time I depressed the brake pedal, = a fireball from the wheel to over the wing resulted from spraying the = hydraulic fluid over the hot brake assembly. The flash point of the = fluid is only 240F! I am going to investigate some stuff with a bit = higher flash point {:>) Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com ------=_NextPart_000_000C_01C578A6.84AA6170 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Yes, John - luck and a quick acting nephew = {:>). =20 The only answer I can come up with is that the aluminum line suffered a = fatigue=20 fracture which weakened the tube and the hydraulic pressure finally blew = out the=20 chunk.  The line has a loop to provide flexing as the caliper moves = in and=20 out - but, flexing aluminum is not know for a long life.  In all = fairness,=20 there are many RVs flying with this configuration - so the break might = be=20 attributed to my installation (stressing the line when I put the loop in = it),=20 material weakness, some damage I did not notice, etc.  Had over 300 = landings before the failure.
 
Ed
----- Original Message -----
From:=20 John=20 Slade
Sent: Friday, June 24, 2005 = 9:09 AM
Subject: [FlyRotary] Re: Brake = Line=20 Incident Photos

Wow,=20 Ed!
You're luck the airplane wasn't consumed.
My=20 question - how did that big chunk get blown out of the brake=20 line?
Regards,
John
-----Original Message-----
From: Rotary motors in = aircraft=20 [mailto:flyrotary@lancaironline.net]On Behalf Of Ed=20 Anderson
Sent: Friday, June 24, 2005 8:58 AM
To: = Rotary=20 motors in aircraft
Subject: [FlyRotary] Brake Line = Incident=20 Photos

For those interested (and may not have seen = them) ,=20 here are a few photos of my brake line fire incident.
 
  Big chunk got blown out of brake line = as can be=20 seen from Brakelines.jpg photo.  Effect of resin burning seen = on wheel=20 pant photos.  Once the line broke, the next time I depressed = the brake=20 pedal, a fireball from the wheel to over the wing resulted from = spraying the=20 hydraulic fluid over the hot brake assembly.  The flash point = of the=20 fluid is only 240F!  I am going to investigate some stuff with = a bit=20 higher flash point {:>)
 
 
Ed
 
Ed Anderson
Rv-6A N494BW Rotary=20 Powered
Matthews, NC
eanderson@carolina.rr.com
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