X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao102.cox.net ([68.230.241.44] verified) by logan.com (CommuniGate Pro SMTP 5.2.0) with ESMTP id 2777490 for flyrotary@lancaironline.net; Tue, 04 Mar 2008 22:45:53 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.44; envelope-from=rv-4mike@cox.net Received: from fed1rmimpo03.cox.net ([70.169.32.75]) by fed1rmmtao102.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20080305034511.JBJF17893.fed1rmmtao102.cox.net@fed1rmimpo03.cox.net> for ; Tue, 4 Mar 2008 22:45:11 -0500 Received: from wills ([68.105.86.251]) by fed1rmimpo03.cox.net with bizsmtp id xFkf1Y00J5RMxr00000000; Tue, 04 Mar 2008 22:44:41 -0500 Message-ID: <006101c87e73$502cef00$fb566944@wills> From: "Mike Wills" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Exhaust? was [FlyRotary] engine installation pictures Date: Tue, 4 Mar 2008 19:45:10 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_005E_01C87E30.41BB19D0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_005E_01C87E30.41BB19D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable What's the current consensus opinion on tape wraps on exhaust pipes? I = remember a few years ago there was a case of an exhaust system failure = on a canard that resulted in a crash. The theory (I believe) was the = tape contained the heat, the pipe overheated and some welds failed. The website for Zetex mentions NASCAR applications for exhaust system = wraps. Mike ----- Original Message -----=20 From: H & J Johnson=20 To: Rotary motors in aircraft=20 Sent: Monday, March 03, 2008 8:33 PM Subject: [FlyRotary] Re: Exhaust? was [FlyRotary] engine installation = pictures Anyone on here use Zetex? It's supposed to do wonders for exhaust = which is routed near fiberglass. Just use high temp Silicone to bond it to the cowl [and/or = duct] and it solves all your problems.. I know there was guys over on the Lancair = side of the list who where doing group buy's.. not sure if any of it is left to go = around.. It's supposed to be as good as kevlar is bullet proof.. FWIW Jarrett > Yep, it's on the list. The exhaust is even closer to the cowl.=20 > Still need to decide what to do about that.=20 >=20 > Mike=20 > ----- Original Message -----=20 > From: Ed Anderson=20 > To: Rotary motors in aircraft=20 > Sent: Monday, March 03, 2008 5:37 AM=20 > Subject: [FlyRotary] Exhaust? was [FlyRotary] engine=20 > installation pictures=20 >=20 >=20 > Really looks nice and clean, Mike. Good job!=20 >=20 > If you can run 10 minutes at 5300 rpm on the ground and not get=20 > above 180F then its unlikely you'll have any cooling problems in=20 > the air. Although, I have found out what works on the ground and=20 > what works in the air aren't always the same. For instance,=20 > depending on how the exit from your radiator is orientated, higher=20 > pressure on the underside of the cowl during a climb could impede=20 > air flow. But, for now I would say, looks like you are going to=20 > be another one to get into the air without the "traditional"=20 > temperature issues.=20 >=20 > One thing I do have a question about. It "appears" that your=20 > exhaust stack runs fairly close to your radiator enclosure (which=20 > I presume is fiberglass). I think I would put a thin sheet of SS=20 > between the exhaust and your radiator plenum. =20 >=20 > Ed=20 > ----- Original Message -----=20 > From: Mike Wills=20 > To: Rotary motors in aircraft=20 > Sent: Sunday, March 02, 2008 11:52 PM=20 > Subject: [FlyRotary] engine installation pictures=20 >=20 >=20 > Here are a couple of pictures of my engine install. Had a=20 > couple of engine runs today including one run at full power (5300=20 > RPM static) for about 10 minutes. Temps came up to 180 and stopped=20 > climbing. Things are starting to come together now. Starting to=20 > have some confidence in this thing.=20 >=20 > Mike Wills=20 > RV-4 N144MW=20 >=20 >=20 >=20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_005E_01C87E30.41BB19D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
What's the current consensus opinion on = tape wraps=20 on exhaust pipes? I remember a few years ago there was a case of an = exhaust=20 system failure on a canard that resulted in a crash. The theory (I=20 believe) was the tape contained the heat, the pipe overheated and = some=20 welds failed.
 
The website for Zetex mentions NASCAR = applications=20 for exhaust system wraps.
 
Mike
----- Original Message -----
From:=20 H & J=20 Johnson
Sent: Monday, March 03, 2008 = 8:33=20 PM
Subject: [FlyRotary] Re: = Exhaust? was=20 [FlyRotary] engine installation pictures

Anyone on here use Zetex? It's supposed to do wonders for = exhaust=20 which is routed near

fiberglass. Just use high temp Silicone to bond it to the = cowl=20 [and/or duct] and it

solves all your problems.. I know there was guys over on = the=20 Lancair side of the list

who where doing group buy's.. not sure if any of it is left = to go=20 around.. It's supposed to

be as good as kevlar is bullet proof..

FWIW

Jarrett

 

> Yep, it's on the list. The exhaust is even closer to the cowl. =
> Still need to decide what to do about that.
>
> = Mike=20
>  ----- Original Message -----
>  From: Ed = Anderson=20
>  To: Rotary motors in aircraft
>  Sent: = Monday,=20 March 03, 2008 5:37 AM
>  Subject: [FlyRotary] Exhaust? = was=20 [FlyRotary] engine
> installation pictures
>
>=20
>  Really looks nice and clean, Mike.  Good job! =
>=20
>  If you can run 10 minutes at 5300 rpm on the ground and = not get=20
> above 180F then its unlikely you'll have any cooling problems = in=20
> the air.  Although, I have found out what works on the = ground=20 and
> what works in the air aren't always the same.  For = instance,=20
> depending on how the exit from your radiator is orientated, = higher=20
> pressure on the underside of the cowl during a climb could = impede=20
> air flow.  But, for now I would say, looks like you are = going to=20
> be another one to get into the air without the "traditional" =
>=20 temperature issues.
>
>  One thing I do have a = question=20 about.  It "appears" that your
> exhaust stack runs fairly = close=20 to your radiator enclosure (which
> I presume is = fiberglass).  I=20 think I would put a thin sheet of SS
> between the exhaust and = your=20 radiator plenum. 
>
>  Ed =
>   =20 ----- Original Message -----
>    From: Mike = Wills=20
>    To: Rotary motors in aircraft=20
>    Sent: Sunday, March 02, 2008 11:52 PM=20
>    Subject: [FlyRotary] engine installation = pictures=20
>
>
>    Here are a couple of = pictures of=20 my engine install. Had a
> couple of engine runs today = including one=20 run at full power (5300
> RPM static) for about 10 minutes. = Temps came=20 up to 180 and stopped
> climbing. Things are starting to come = together=20 now. Starting to
> have some confidence in this thing.
> =
>    Mike Wills
>    RV-4 = N144MW=20
>
>
> 

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