X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-d21.mx.aol.com ([205.188.144.207] verified) by logan.com (CommuniGate Pro SMTP 5.0c1) with ESMTP id 683528 for flyrotary@lancaironline.net; Fri, 26 Aug 2005 22:00:25 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.144.207; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-d21.mx.aol.com (mail_out_v38_r4.1.) id q.1f8.10bd7f16 (4592) for ; Fri, 26 Aug 2005 21:59:36 -0400 (EDT) From: Lehanover@aol.com Message-ID: <1f8.10bd7f16.30412308@aol.com> Date: Fri, 26 Aug 2005 21:59:36 EDT Subject: Re: [FlyRotary] Re: Flammable rotors To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1125107976" X-Mailer: 9.0 SE for Windows sub 5017 X-Spam-Flag: NO -------------------------------1125107976 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 8/26/2005 10:22:13 AM Eastern Daylight Time, canarder@frontiernet.net writes: How much heat would these Porsche rotors dissipate? What's a Porsche weigh? 1500 lb? How much energy would that rotor have to absorb (and LATER dissipate) on a typical high performance afternoon? If the ceramic coating insulates the disk itself (which it must since the disk is Al which melts at about 900 F) then all that heat must be absorbed by the puck, piston, caliper and fluid. Doable if you're dealing with a 1500 lb [relatively] slow moving vehicle. Still wondering' why Boeing doesn't use them? Boeing does the math ... Jim S. Aluminum ceramic foam composite. !500 pounds would be light even for Porsche, more like 2,000, and slow they don't understand at all. I told those Porsche people it wouldn't work. I told the formula one people they couldn't turn the V10s 19,000 RPM but they won't stop doing it. There are no valve springs. The valves are powered by pneumatic cylinders and the cam shafts are programs in the engine management computer. They also use carbon pads on carbon discs which is a Violation of some kind, but they won't stop doing that either. Lynn E. Hanover -------------------------------1125107976 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 8/26/2005 10:22:13 AM Eastern Daylight Time,=20 canarder@frontiernet.net writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>How much=20 heat would these Porsche rotors dissipate? What's a Porsche=20
weigh? 1500 lb? How much energy would that rotor have to absorb=20= (and=20
LATER dissipate) on a typical high performance afternoon? If the= =20
ceramic coating insulates the disk itself (which it must since the dis= k=20
is Al which melts at about 900 F) then all that heat must be absorbed=20= by=20
the puck, piston, caliper and fluid. Doable if you're dealing wi= th a=20
1500 lb [relatively] slow moving vehicle. Still wondering' why=20 Boeing
doesn't use them?
Boeing does the math ... Jim=20 S.

Aluminum ceramic foam composite.

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>!500=20 pounds would be light even for Porsche, more like 2,000, and slow they don= 't=20 understand at all.

I told those Porsche people it wouldn't work. I told the formula one pe= ople=20 they couldn't turn the V10s 19,000 RPM but they won't stop doing it. There a= re=20 no valve springs. The valves are powered by pneumatic cylinders and the cam=20 shafts are programs in the engine management computer.

They also use carbon pads on carbon discs which is a Violation of some=20 kind, but they won't stop doing that either.

Lynn E. Hanover

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