X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from ispmxmta09-srv.windstream.net ([166.102.165.170] verified) by logan.com (CommuniGate Pro SMTP 5.2c4) with ESMTP id 2645189 for flyrotary@lancaironline.net; Mon, 14 Jan 2008 17:25:16 -0500 Received-SPF: pass receiver=logan.com; client-ip=166.102.165.170; envelope-from=jskmberki@alltel.net Received: from ispmxaamta08-gx.windstream.net ([71.31.131.162]) by ispmxmta09-srv.windstream.net with ESMTP id <20080114222425.PHPQ8692.ispmxmta09-srv.windstream.net@ispmxaamta08-gx.windstream.net> for ; Mon, 14 Jan 2008 16:24:25 -0600 Received: from joehomepc ([71.31.131.162]) by ispmxaamta08-gx.windstream.net with SMTP id <20080114222424.TUMN27517.ispmxaamta08-gx.windstream.net@joehomepc> for ; Mon, 14 Jan 2008 16:24:24 -0600 Message-ID: <012101c856fd$0271b4a0$01fea8c0@joehomepc> From: "Joe Berki" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: What's this Date: Mon, 14 Jan 2008 17:30:04 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_011E_01C856D3.193549B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1914 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1914 This is a multi-part message in MIME format. ------=_NextPart_000_011E_01C856D3.193549B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable How do the spin tech mufflers hold up? ----- Original Message -----=20 From: Mark Steitle=20 To: Rotary motors in aircraft=20 Sent: Monday, January 14, 2008 5:11 PM Subject: [FlyRotary] Re: What's this George,=20 You could be right about the strapping, but you can see the white = stuff oozing up through almost every hole in the perforated outer shell. = I figure that another 1/2 hour flight ought to just about finish it = off. =20 Also, from my previous history with the "auger" muffler, I should have = realized that 304ss wasn't up to the task. There are signs of that = already by the grey dust/powder inside the muffler. Maybe Flowmaster = will agree to make one out of 321ss. =20 Mark=20 =20 On 1/14/08, George Lendich wrote:=20 Mark, I have been thinking about this and have come to the conclusion that = it isn't the packing material melting as I believe that would more than = likely turn to dust rather than melt.=20 It will more likely be some glue or strapping that holds the packing = material in place, before they put on the outer shield. George ( down under)=20 =20 Dennis,=20 The outside of the muffler did change color a little. Out of the = box it looked almost like polished stainless steel. Now it still looks = shiny, but it has a definite honey color to it. Yes, I plan to fly it = again. If the packing material melts, or gets pulverized, so be it. As = long as it hasn't lost its structural integrity I will fly it. Of = course, if it gets too loud for the ANR to handle the noise, or if = people start to complain, then I'll change it out. I'm growing weary of = working on the exhaust system. It is still quieter than the "auger" = muffler.=20 Your system may be easier on the HP-2 due to 1) side port exhaust, = 2) stock exhaust manifold, 3) tangential muffler and 4) more distance = from the exhaust port to the muffler. I may have to rethink my design = to increase the distance between the exhaust port and muffler. The = instructions did warn that the muffler would get very hot due to some = engineering double-speak. Little did I know that it would spill its = guts on the hangar floor. =20 Yes, come on down. Best BBQ for miles around. =20 Mark =20 =20 On 1/13/08, Dennis Haverlah wrote:=20 My muffler never gets "HOT" enough to eject -drip- anything on = the floor!!.=20 I have seen EGT numbers in the low 1800s while at full throttle = and running slightly rich without any noticeable change in muffler = performance. So far no one has said my muffler is louder than my first = flight. =20 I never expected the HP - 2 to work or anything but the Renesis = - but I did not expect to see "stuff" melting and dripping out either. =20 Mark - are you going to fly it again as is or what is your plan = - I may want to fly over to Lockhart and watch! I am ready for more = Barbecue also!=20 Dennis H. Bill Bradburry wrote: Mark, Did the stuff get on the bottom of your plane? Has this = affected the sound of your exhaust? Did Dennis' muffler do this? I noticed his muffler had a white coating on the outside like = it had been hot. Has yours turned color? I wonder how hot the muffler gets at high power settings? = Didn't you say something about a hand held temp gage? Bill B=20 ---------------------------------------------------------------------- From: Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net] On Behalf Of Mark Steitle Sent: Sunday, January 13, 2008 9:40 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: What's this OK, I can see this is going nowhere. So I guess I'll have to = tell you. This is what came out of my new HP-2 muffler after a short = 20 minute flight. What you saw in the previous picture was the packing = material MELTING and dripping out the end of the muffler. In the second = picture, you can see it oozing out of the little holes in the = intermediate housing. I was expecting it to "blow out" eventually, but = I wasn't expecting it to melt and run out the tailpipe. This just blows = my mind. Where to go from here??? Maybe I should replace the packing = with titanium shavings, or lithium crystals.=20 Mark =20 On Jan 13, 2008 8:23 PM, wrote: Terminator Tweety? ---------------------------------------------------------------------- Start the year off right. Easy ways to stay in shape in the = new year.=20 -------------------------------------------------------------------------= - No virus found in this incoming message. Checked by AVG Free Edition.=20 Version: 7.5.516 / Virus Database: 269.19.2/1221 - Release Date: = 12/01/2008 2:04 PM -------------------------------------------------------------------------= ----- No virus found in this incoming message. Checked by AVG Free Edition.=20 Version: 7.5.516 / Virus Database: 269.19.2/1224 - Release Date: = 1/14/2008 5:39 PM ------=_NextPart_000_011E_01C856D3.193549B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
How do the spin tech mufflers hold = up?
----- Original Message -----
From:=20 Mark = Steitle=20
Sent: Monday, January 14, 2008 = 5:11=20 PM
Subject: [FlyRotary] Re: What's = this

George,
You could be right about the strapping, but you can = see the=20 white stuff oozing up through almost every hole in the perforated = outer=20 shell.  I figure that another 1/2 hour flight ought to just about = finish=20 it off.  
 
Also, from my previous history with the "auger" muffler, I should = have=20 realized that 304ss wasn't up to the task.  There are signs = of that=20 already by the grey dust/powder inside the=20 muffler.  Maybe Flowmaster will agree to make one = out=20 of 321ss. 
 
Mark

 
On 1/14/08, George=20 Lendich <lendich@optusnet.com.au>=20 wrote:=20
Mark,
I have been thinking about this and = have come=20 to the conclusion that it isn't the packing material melting as I = believe=20 that would more than likely turn to dust rather than melt. =
It will = more likely be some glue=20 or strapping that holds the packing material in place, before they = put on=20 the outer shield.
George ( down=20 under) 
 
Dennis,
The outside of the muffler did change color a little.  = Out of=20 the box it looked almost like polished stainless steel.  Now = it still=20 looks shiny, but it has a definite honey color to it.  Yes, I = plan to=20 fly it again.  If the packing material melts, or gets = pulverized, so=20 be it.  As long as it hasn't lost its structural = integrity I=20 will fly it.  Of course, if it gets too loud for the ANR to = handle=20 the noise, or if people start to complain, then I'll change it = out. =20 I'm growing weary of working on the exhaust system.  It is = still=20 quieter than the "auger" muffler.
 
Your system may be easier on the HP-2 due to 1) side = port=20 exhaust, 2) stock exhaust manifold, 3) tangential=20 muffler and 4) more distance from the exhaust port to the=20 muffler.  I may have to rethink my design = to increase=20 the distance between the exhaust port and = muffler.  The=20 instructions did warn that the muffler would get very hot due to = some=20 engineering double-speak.  Little did I know that it would = spill its=20 guts on the hangar floor. 
 
Yes, come on down.  Best BBQ for miles = around.  
 
Mark  

 
On 1/13/08, Dennis=20 Haverlah <clouduster@austin.rr.com > wrote:=20
My muffler never gets = "HOT" enough=20 to eject -drip-  anything on the floor!!.
 I have = seen EGT=20 numbers in the low 1800s while at full throttle and running = slightly=20 rich without any noticeable change in muffler performance.  = So far=20 no one has said my muffler is louder than my first flight.  =

I never expected the HP - 2 to work or anything but the = Renesis=20 - but I did not expect to see "stuff" melting and dripping out=20 either. 

Mark - are you going to fly it again as is = or what=20 is your plan - I may want to fly over to Lockhart and = watch!  I am=20 ready for more Barbecue also!

Dennis H.

Bill = Bradburry=20 wrote:

Mark,

Did the stuff get on the bottom of = your=20 plane?  Has this affected the sound of your = exhaust?  Did=20 Dennis' muffler do this?

I=20 noticed his muffler had a white coating on the outside like it = had=20 been hot.  Has yours turned color?

I=20 wonder how hot the muffler gets at high power settings?  = Didn't=20 you say something about a hand held temp = gage?

 

Bill B 

 

From:=20 Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Mark=20 Steitle
Sent: Sunday,=20 January 13, 2008 9:40 PM
To: Rotary motors in=20 aircraft
Subject: [FlyRotary] = Re: What's=20 this

OK, I can see this is = going=20 nowhere.  So I guess I'll have to tell you.   = This is=20 what came out of my new HP-2 muffler after a short 20 minute=20 flight.  What you saw in the previous picture was the = packing=20 material MELTING and dripping out the end of the = muffler.  In the=20 second picture, you can see it oozing out of the little holes = in the=20 intermediate housing.  I was expecting it to "blow out"=20 eventually, but I wasn't expecting it to melt and run out the=20 tailpipe.  This just blows my mind.  Where to go = from=20 here???  Maybe I should replace the packing with titanium = shavings, or lithium crystals.

Mark

 =20

On Jan 13, 2008 8:23 PM, <BMears9413@aol.com=20 > wrote:

Terminator Tweety?



Start the=20 year off right. Easy ways to stay in shape in the new = year.=20

 


No virus found in this incoming message.
Checked by AVG = Free=20 Edition.
Version: 7.5.516 / Virus Database: 269.19.2/1221 - = Release=20 Date: 12/01/2008 2:04 PM


No virus found in this incoming message.
Checked by AVG Free = Edition.
Version: 7.5.516 / Virus Database: 269.19.2/1224 - = Release Date:=20 1/14/2008 5:39 PM
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