X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.12.137.3] (HELO imo-m22.mail.aol.com) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTP id 2464325 for flyrotary@lancaironline.net; Fri, 09 Nov 2007 21:18:57 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.3; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-m22.mx.aol.com (mail_out_v38_r9.3.) id q.bc0.1d57c38c (42809) for ; Fri, 9 Nov 2007 21:18:12 -0500 (EST) From: Lehanover@aol.com Message-ID: Date: Fri, 9 Nov 2007 21:18:12 EST Subject: Re: [FlyRotary] Re: Burns Stainless Drag Muffler To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1194661092" X-Mailer: 9.0 Security Edition for Windows sub 5378 X-Spam-Flag: NO -------------------------------1194661092 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 11/9/2007 6:24:41 P.M. Eastern Standard Time, bmears9413@aol.com writes: I was told that inconel is what was used in jet engines to take the heat. It was the only thing that would take the heat and not crack. I hope thats correct, cause I reached real deep in my pockets to insure I was doing the right thing for my application. Gonna be a real pisser if it cracks! Expecially if I go down in flames! Bob Mears Supermarine Spitfire Those hot section vanes have N-2 compressor air pumping through them to extend their life spans. They do crack, and in some cases the crack can be ignored if there is only one. Or, a single vane or some number of vanes can be replaced Or a nick can be filed down and polished. Total hours between hot section checks and the number of starts must be recorded. But crack they do................. A little cooling air on the exhaust system is a good idea. On the dyno those things glow a bright orange and heat up anything in a line of sight. Shielding is a must. A thick walled stainless tube covered in heat wrap gets the job done and the lack of under-hood heat is amazing. Lynn E. Hanover ************************************** See what's new at http://www.aol.com -------------------------------1194661092 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 11/9/2007 6:24:41 P.M. Eastern Standard Time,=20 bmears9413@aol.com writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>I was=20 told that inconel is what was used in jet engines to take the heat. It was= the=20 only thing that would take the heat and not crack. I hope thats correct, c= ause=20 I reached real deep in my pockets to insure I was doing the right thing fo= r my=20 application. Gonna be a real pisser if it cracks! Expecially if I go down=20= in=20 flames!

Bob Mears
Supermarine Spitfire

Those hot section vanes have N-2 compressor air pumping through them to= =20 extend their life spans. They do crack, and in some cases the crack can be=20 ignored if there is only one. Or, a single vane or some number of vanes can=20= be=20 replaced Or a nick can be filed down and polished. Total hours between hot=20 section checks and the number of starts must be recorded. But crack they=20 do.................

A little cooling air on the exhaust system is a good idea. On the dyno=20 those things glow a bright orange and heat up anything in a line of sight.=20 Shielding is a must. A thick walled stainless tube covered in heat wrap gets= the=20 job done and the lack of under-hood heat is amazing.

Lynn E. Hanover

See w= hat's new at AOL.c= om and Make AOL Your Homepage.

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