X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from rwcrmhc12.comcast.net ([216.148.227.85] verified) by logan.com (CommuniGate Pro SMTP 4.3.5) with ESMTP id 1021029 for flyrotary@lancaironline.net; Fri, 24 Jun 2005 21:27:02 -0400 Received-SPF: none receiver=logan.com; client-ip=216.148.227.85; envelope-from=n3773@comcast.net Received: from rv8 (c-24-21-140-241.hsd1.or.comcast.net[24.21.140.241]) by comcast.net (rwcrmhc12) with SMTP id <2005062501260501400s952le>; Sat, 25 Jun 2005 01:26:15 +0000 Message-ID: <001c01c57925$0af2ead0$f18c1518@rv8> Reply-To: "kevin lane" From: "kevin lane" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Brake Line Incident Photos Date: Fri, 24 Jun 2005 18:27:09 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0017_01C578EA.54CF0160" 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 This is a multi-part message in MIME format. ------=_NextPart_000_0017_01C578EA.54CF0160 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ed - your brake problems have made me rethink my own situation. after = maybe 600 hrs I had the brake line snap off at the fitting. I didn't = give it much thought and just cut a bit off and reflared it, thankful = that I had put a generous loop in it originally. it seemed to me that = it had failed more because of that brake pad problems had me = disconnecting the line and the nut had started to cut into the line from = all the tightening. with a -6A no brakes is a big deal. I had to make = 270 degree turns in Laramie once when I realized I had no right brake. = other than a personal bias against them, I wonder if the plastic lines = are best? I foamed my gear legs, so am not anxious to attempt replacing = the brake lines. my -8 has rifle drilled brake lines thru the center of = the gear leg which will be nice. Kevin Lane Portland, OR e-mail-> n3773@comcast.net ----- Original Message -----=20 From: Ed Anderson=20 To: Rotary motors in aircraft=20 Sent: Friday, June 24, 2005 4:33 PM Subject: [FlyRotary] Re: Brake Line Incident Photos Yes, the aluminum wheel was protected by the steel rotor between the = fire and the aluminum wheel hub. In fact, I could even reuse the inner = tube. Might could have also used the tire, however, it was a bit = puckered and decided it just wasn't worth the risk. Ed ----- Original Message -----=20 From: kenpowell@comcast.net=20 To: Rotary motors in aircraft=20 Sent: Friday, June 24, 2005 4:59 PM Subject: [FlyRotary] Re: Brake Line Incident Photos No, I meant the wheel itself. Is it save? =20 Ken Powell=20 Bryant, Arkansas=20 501-847-4721=20 C150 / RV-4 -------------- Original message --------------=20 Not certain to which aluminum you are referring, Ken.=20 If you are referring to the wing skin, my best guesstimate is - = no. The paint was sooted but not burnt and when I tapped the skin with = a small coin, I got the same tone from the unaffected wing's panel as I = did from the one over the fire, so believe the temper of the metal was = unaffected. However, I suspect if the fire had gone on much longer, the = story would have been much different. Ed A ----- Original Message -----=20 From: kenpowell@comcast.net=20 To: Rotary motors in aircraft=20 Sent: Friday, June 24, 2005 12:52 PM Subject: [FlyRotary] Re: Brake Line Incident Photos Hi Ed, Did the wheel get hot enough to affect the strength of the = aluminum? Ken Powell=20 Bryant, Arkansas=20 501-847-4721=20 C150 / RV-4 -------------- Original message --------------=20 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 ------------------------------------------------------------------------ >> Homepage: http://www.flyrotary.com/ >> Archive: = http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_0017_01C578EA.54CF0160 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Ed - your brake problems have = made me=20 rethink my own situation.  after maybe 600 hrs I had the brake line = snap=20 off at the fitting.  I didn't give it much thought and just cut a = bit off=20 and reflared it, thankful that I had put a generous loop in it = originally. =20 it seemed to me that it had failed more because of that brake pad = problems had=20 me disconnecting the line and the nut had started to cut into the line = from all=20 the tightening.  with a -6A no brakes is a big deal.  I had to = make=20 270 degree turns in Laramie once when I realized I had no right = brake. =20 other than a personal bias against them, I wonder if the plastic lines = are best?=20 I foamed my gear legs, so am not anxious to attempt replacing the brake=20 lines.  my -8 has rifle drilled brake lines thru the center of the = gear leg=20 which will be nice.
Kevin Lane  Portland, OR
e-mail-> n3773@comcast.net
----- Original Message -----
From:=20 Ed=20 Anderson
Sent: Friday, June 24, 2005 = 4:33 PM
Subject: [FlyRotary] Re: Brake = Line=20 Incident Photos

Yes, the aluminum wheel was protected by the = steel rotor=20 between the fire and the aluminum wheel hub.  In fact, I could = even reuse=20 the inner tube.  Might could have also used the tire, however, it = was a=20 bit puckered and decided it just wasn't worth the risk.
 
Ed
----- Original Message -----
From:=20 kenpowell@comcast.net =
To: Rotary motors in = aircraft=20
Sent: Friday, June 24, 2005 = 4:59=20 PM
Subject: [FlyRotary] Re: = Brake Line=20 Incident Photos

No, I meant the wheel itself.  Is it save? 

Ken Powell
Bryant, Arkansas
501-847-4721
C150 / = RV-4
 
--------------=20 Original message --------------
Not certain to which aluminum you are = referring,=20 Ken. 
 
 If you are referring to the wing = skin, my best=20 guesstimate is - no.  The paint was sooted but not burnt = and=20 when I tapped the skin with a small coin, I got the same tone from = the=20 unaffected wing's panel as I did from the one over the fire, so = believe=20 the temper of the metal was unaffected.  However, I suspect = if the=20 fire had gone on much longer, the story would have been much=20 different.
 
Ed A
 
 
 
 
----- Original Message ----- =
From:=20 kenpowell@comcast.net =
To: Rotary motors in = aircraft=20
Sent: Friday, June 24, = 2005 12:52=20 PM
Subject: [FlyRotary] Re: = Brake Line=20 Incident Photos

Hi Ed,
Did the wheel get hot enough to affect the strength of the=20 aluminum?

Ken Powell
Bryant, Arkansas
501-847-4721 =
C150 /=20 RV-4
 
--------------=20 Original message --------------
For those interested (and may not have = seen=20 them) , here are a few photos of my brake line fire=20 incident.
 
  Big chunk got blown out of = brake line as=20 can be seen from Brakelines.jpg photo.  Effect of resin = burning=20 seen on wheel pant photos.  Once the line broke, the next = time I=20 depressed the brake pedal, a fireball from the wheel to over = the wing=20 resulted from spraying the hydraulic fluid over the hot brake=20 assembly.  The flash point of the fluid is only = 240F!  I am=20 going to investigate some stuff with a bit higher flash point=20 {:>)
 
 
Ed
 
Ed Anderson
Rv-6A N494BW Rotary=20 Powered
Matthews, NC
eanderson@carolina.rr.com

>>  Homepage: =20 http://www.flyrotary.com/
>>  Archive:   = = http://lancaironline.net/lists/flyrotary/List.html
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