X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m24.mx.aol.com ([64.12.137.5] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 1004987 for flyrotary@lancaironline.net; Fri, 17 Jun 2005 08:36:36 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.5; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-m24.mx.aol.com (mail_out_v38_r1.7.) id q.13e.15652197 (4402) for ; Fri, 17 Jun 2005 08:35:48 -0400 (EDT) From: Lehanover@aol.com Message-ID: <13e.15652197.2fe41da4@aol.com> Date: Fri, 17 Jun 2005 08:35:48 EDT Subject: Re: [FlyRotary] Ed Update.. To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1119011748" X-Mailer: 9.0 SE for Windows sub 5012 -------------------------------1119011748 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 6/17/2005 12:50:02 AM Eastern Daylight Time, Dastaten@earthlink.net writes: Anyways.. those are my questions.. tubing and fluid... Any takers? Dave You could use a more modern hydraulic fluid rather than car brake fluid. Even the old 5606 has a prety high flash point. Silicone brake fluid has far less a problem but requires more master cylinder volume to over come the spongy feel, and is thick and difficult to bleed. I use aftermarket Wilwood or Lockheed 570 to 600 degree wet boiling point race fluids. Never a problem even with the Carbon Metalic brake pads that flash the rotors to orange when cycled. Most small calipers are sliders. Where there is a single piston pushing from only one side of the rotor. These calipers move when operated and there must be an accomodation for that movement in the mounting system. A single aluminum line all the way into the caliper will fail close to the caliper fitting. Also the flex of a spring gear would add quite a bit of relative movement between the line and caliper. If the gear leg is rigid it needs only a short flex line right next to the caliper. If it can flex at the fuselage it needs one there also. A length of dash 3 the whole length of the leg would be hard to beat for reliability. However adding flex line adds to spongy feel as well. I run short flex lines in dash 4 to both rear calipers (4 2.00 inch pistons each) because even though these are rigidly mounted they still flex a bit and would fatigue a rigid brake line. Lynn E. Hanover -------------------------------1119011748 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 6/17/2005 12:50:02 AM Eastern Daylight Time,=20 Dastaten@earthlink.net writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000=20 size=3D2>Anyways.. those are my questions.. tubing and fluid...
Any=20 takers?

Dave

You could use a more modern hydraulic fluid rather than car brake fluid= .=20

Even the old 5606 has a prety high flash point. Silicone brake fluid ha= s=20 far less a problem but requires more master cylinder volume to over come the= =20 spongy feel, and is thick and difficult to bleed. I use aftermarket Wilwood=20= or=20 Lockheed 570 to 600 degree wet boiling point race fluids. Never a problem ev= en=20 with the Carbon Metalic brake pads that flash the rotors to orange when cycl= ed.=20

Most small calipers are sliders. Where there is a single piston pushing= =20 from only one side of the rotor. These calipers move when operated and=20 there must be an accomodation for that movement in the mounting system.= A=20 single aluminum line all the way into the caliper will fail close to the cal= iper=20 fitting.

Also the flex of a spring gear would add quite a bit of relative moveme= nt=20 between the line and caliper. If the gear leg is rigid it needs only a short= =20 flex line right next to the caliper. If it can flex at the fuselage it needs= one=20 there also.

A length of dash 3 the whole length of the leg would be hard to beat fo= r=20 reliability. However adding flex line adds to spongy feel as well.

I run short flex lines in dash 4 to both rear calipers (4 2.00=20 inch pistons each) because even though these are rigidly mounted they s= till=20 flex a bit and would fatigue a rigid brake line.

Lynn E. Hanover

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