X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao106.cox.net ([68.230.241.40] verified) by logan.com (CommuniGate Pro SMTP 5.2.15) with ESMTP id 3783205 for flyrotary@lancaironline.net; Tue, 28 Jul 2009 00:45:09 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.40; envelope-from=rv-4mike@cox.net Received: from fed1rmimpo02.cox.net ([70.169.32.72]) by fed1rmmtao106.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20090728044432.NTWP25927.fed1rmmtao106.cox.net@fed1rmimpo02.cox.net> for ; Tue, 28 Jul 2009 00:44:32 -0400 Received: from wills ([68.105.87.229]) by fed1rmimpo02.cox.net with bizsmtp id MGkV1c00B4wtUdQ04GkYi6; Tue, 28 Jul 2009 00:44:32 -0400 X-VR-Score: 0.00 X-Authority-Analysis: v=1.0 c=1 a=98X8gvVXjMgA:10 a=CjxXgO3LAAAA:8 a=Ia-xEzejAAAA:8 a=ik0lvTGKAAAA:8 a=7g1VtSJxAAAA:8 a=upCDMPHURWoTTbT-xJwA:9 a=55fDIb6qLgUzL0-O4V4A:7 a=HAVFJpqFp647qei91yJBk9D1A7sA:4 a=rC2wZJ5BpNYA:10 a=EzXvWhQp4_cA:10 X-CM-Score: 0.00 Message-ID: <8E29E8FCF6FA4E1ABDAFCF0D62473AAF@wills> From: "Mike Wills" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Intake filter box & Jet Hot Exhaust Coating Date: Mon, 27 Jul 2009 21:44:30 -0700 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 My exhaust is coated in and out with a 2000 degree coating. Its holding up OK, but I wouldnt rely on it to keep the heat off of nearby components. I have a stainless heatshield around a large portion of the exhaust and I have a self adhesive fiberglass heat shielding material applied in various places like the inside of the cowl. In places not protected by the heatshield, the adhesive has gotten hot enough to release. I also have a couple of painted parts fairly close to the exhaust that have gotten hot enough for the paint to burn. Mike Wills RV-4 N144MW ----- Original Message ----- From: "Ben Schneider" To: "Rotary motors in aircraft" Sent: Monday, July 27, 2009 4:54 AM Subject: [FlyRotary] Intake filter box & Jet Hot Exhaust Coating > > Thanks for the kind words. Let me answer some of the questions. The intake > filter box has a K&N filter inside, and a butterfly valve for ram air that > bypasses through the center of the filter. It also has a spring loaded > door that would suck open in the event of the opening being plugged. That > is why the odd shaped top. > The pictures of the exhaust are pretty old. In the one picture, the > exhaust had not yet been sent to the coater. I guess I should also add > that the coating is not actually Jet Hot coating as I have been calling > it, (common trade name) It was actually done by High Performance Coatings > (www.hpcoatings.com) It is their equivalent to the Jet Hot. Supposed to be > good up to 2000 degrees, and supposedly reduces surface temperatures as > much as 65%. I am wondering if that is true or just sales propaganda? > Guess I'll find out. > The muffler is an Aeroturbine muffler, all stainless, 2 1/2" inlet and > outlet. Don't have any idea if it will blow apart, quite the thing, or > just increase drag. Yet another unknown. Ahh, the life of an > experimenter.... > > ;) > > Will be off line for a few days, headed to OSH. Hope to see some of you > there. > > Ben > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html >