X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [65.54.250.84] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1068756 for flyrotary@lancaironline.net; Fri, 14 Apr 2006 17:49:29 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.250.84; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 14 Apr 2006 14:48:45 -0700 Message-ID: Received: from 4.171.129.92 by BAY115-DAV12.phx.gbl with DAV; Fri, 14 Apr 2006 21:48:41 +0000 X-Originating-IP: [4.171.129.92] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Radiant Heat from muffler Date: Fri, 14 Apr 2006 17:48:36 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0060_01C65FEB.A7D0A560" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.20.0026.0800 Seal-Send-Time: Fri, 14 Apr 2006 17:48:36 -0400 X-OriginalArrivalTime: 14 Apr 2006 21:48:45.0540 (UTC) FILETIME=[34540240:01C6600D] This is a multi-part message in MIME format. ------=_NextPart_000_0060_01C65FEB.A7D0A560 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Ben. There is a significant amount of heat radiated. There is only about = 3/4" spacing at the closest point on mine. I pop riveted a sheet of = 007" thick SS above the muffler to shield the fuselage. It expands = when hot and automatically creates an air gap between it and the fuse. Tracy ----- Original Message -----=20 From: Ben Schneider=20 To: Rotary motors in aircraft=20 Sent: Thursday, April 13, 2006 11:07 PM Subject: [FlyRotary] Radiant Heat from muffler Tracy and or anyone else flying with an exposed muffler... I am at the point of routing the exhaust out of the cowling and = aft into a muffler. I am curious how much distance I need to keep = between the top of the muffler, and the bottom of the fuselage. How much = heat do they put off in flight? Taxi and ground run? Does the floor get = hot? Would it blister paint? Should I not paint the area directly above = it? Thoughts??? Thanks in advance. Ben Schneider RV7 N713R Renesis, EC2, RD1C, GRT EFIS, Still = shooting for early summer first engine start.=20 ------=_NextPart_000_0060_01C65FEB.A7D0A560 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Ben.
  There is a significant amount of heat radiated.  There = is only=20 about 3/4" spacing at the closest point on mine.  I pop = riveted a=20 sheet of .007" thick SS above the muffler to shield the fuselage.  = It=20 expands when hot and automatically creates an air gap between it and the = fuse.
 
Tracy
----- Original Message -----
From: Ben=20 Schneider
To: Rotary motors in = aircraft
Sent: Thursday, April 13, 2006 = 11:07=20 PM
Subject: [FlyRotary] Radiant = Heat from=20 muffler

Tracy and or anyone else flying with an exposed=20 muffler...

     I am at the point of = routing the=20 exhaust out of the cowling and aft into a muffler. I am curious how = much=20 distance I need to keep between the top of the muffler, and the bottom = of the=20 fuselage. How much heat do they put off in flight? Taxi and ground = run? Does=20 the floor get hot? Would it blister paint? Should I not paint the area = directly above it? Thoughts???

  Thanks in = advance.

 =20 Ben Schneider  RV7  N713R  Renesis, EC2, RD1C, GRT = EFIS, Still=20 shooting for early summer first engine start.=20
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