X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.123] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3811868 for flyrotary@lancaironline.net; Thu, 13 Aug 2009 10:16:11 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.123; envelope-from=eanderson@carolina.rr.com Received: from computername ([75.191.186.236]) by cdptpa-omta02.mail.rr.com with ESMTP id <20090813141535587.UPGD22035@cdptpa-omta02.mail.rr.com> for ; Thu, 13 Aug 2009 14:15:35 +0000 From: "Ed Anderson" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Moving muffler to belly Date: Thu, 13 Aug 2009 10:13:41 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001A_01CA1BFE.BB8948A0" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 In-Reply-To: Thread-Index: AcocFtasucu/nYhURgemxpRs8sXPvQACP7OA X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Message-Id: <20090813141535587.UPGD22035@cdptpa-omta02.mail.rr.com> This is a multi-part message in MIME format. ------=_NextPart_000_001A_01CA1BFE.BB8948A0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Bobby, I have my two Hushpower II mufflers slung on the bottom. The top of the mufflers are approx 2-3" from the bottom and my paint. I have no additional shielding although a sheet of SS with some sort of insulation (fiber fax) would probably be a good idea. But, I never go around to it and the paint is still there - no flaking, no bubbling. Now since I have 2 mufflers, they likely do not get quite as hot as one muffler with all the exhaust going through it. So your mileage may vary Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bobby J. Hughes Sent: Thursday, August 13, 2009 10:08 AM To: Rotary motors in aircraft Subject: [FlyRotary] Moving muffler to belly I've had the plane down for a few weeks making several changes. I would like to move my muffler out of the cowl to the airframe belly. How much space should I leave between the top of the muffler and bottom skin? My exit fairing hangs down about 5" below the airframe. What have others done for heat shielding \ paint protection? Since the floor pans are installed any riveting will have to be with blind rivets. Don't really want to put a bunch of extra holes in the skin for this experiment. Any advice or pictures would be appreciated. Thanks, Bobby Hughes RV-10 __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_001A_01CA1BFE.BB8948A0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Bobby, I have my two Hushpower II = mufflers slung on the bottom.  The top of the mufflers are approx 2-3” = from the bottom and my paint.  I have no additional shielding although a = sheet of SS with some sort of insulation (fiber fax) would probably be a good idea.  But, I never go around to it and the paint is still there = – no flaking, no bubbling.  Now since I have 2 mufflers, they likely = do not get quite as hot as one muffler with all the exhaust going through = it.  So your mileage may vary

 

Ed

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bobby J. Hughes
Sent: Thursday, August = 13, 2009 10:08 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] = Moving muffler to belly

 

I've had the plane down for a few weeks making = several changes. I would like to move my muffler out of the cowl to the airframe = belly. How much space should I leave between the top of the muffler and bottom = skin? My exit fairing hangs down about 5" below the airframe. What have = others done for heat shielding \ paint protection? Since the floor pans = are installed any riveting will have to be with blind rivets. Don't really = want to put a bunch of extra holes in the skin for this experiment. Any = advice or pictures would be appreciated.

 

Thanks,

 

Bobby Hughes

RV-10



__________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com



__________ Information from ESET NOD32 Antivirus, version of = virus signature database 3267 (20080714) __________

The message = was checked by ESET NOD32 Antivirus.

http://www.eset.com
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