X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail07.syd.optusnet.com.au ([211.29.132.188] verified) by logan.com (CommuniGate Pro SMTP 5.2c4) with ESMTPS id 2645140 for flyrotary@lancaironline.net; Mon, 14 Jan 2008 16:48:31 -0500 Received-SPF: pass receiver=logan.com; client-ip=211.29.132.188; envelope-from=lendich@optusnet.com.au Received: from george (d220-236-79-144.dsl.nsw.optusnet.com.au [220.236.79.144]) by mail07.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id m0ELlhZs023939 for ; Tue, 15 Jan 2008 08:47:44 +1100 Message-ID: <003e01c856f7$1a6f1ee0$904fecdc@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: What's this Date: Tue, 15 Jan 2008 07:47:46 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003B_01C8574A.EB5A28D0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Antivirus: avast! (VPS 0657-0, 12/12/2006), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_003B_01C8574A.EB5A28D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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. 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 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 ------=_NextPart_000_003B_01C8574A.EB5A28D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Mark,
I have been thinking about this and = have come to=20 the conclusion that it isn't the packing material melting as I believe = that=20 would more than likely turn to dust rather than melt.
It will more likely be = some glue or=20 strapping that holds the packing material in place, before they put on = the outer=20 shield.
George ( down = under) 
Dennis,
The outside of the muffler did change color a little.  Out = of the=20 box it looked almost like polished stainless steel.  Now it still = looks=20 shiny, but it has a definite honey color to it.  Yes, I plan to = fly it=20 again.  If the packing material melts, or gets pulverized, so be=20 it.  As long as it hasn't lost its structural integrity I = will fly=20 it.  Of course, if it gets too loud for the ANR to handle the = noise, or=20 if people start to complain, then I'll change it out.  I'm = growing weary=20 of working on the exhaust system.  It is still quieter than the = "auger"=20 muffler.
 
Your system may be easier on the HP-2 due to 1) side port = exhaust,=20 2) stock exhaust manifold, 3) tangential muffler and 4) = more=20 distance from the exhaust port to the muffler.  I may have to=20 rethink my design to increase the distance between the = exhaust=20 port and muffler.  The instructions did warn that the = muffler would=20 get very hot due to some engineering double-speak.  Little did I = know=20 that it would spill its 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>= =20 wrote:=20
My muffler never gets = "HOT" enough to=20 eject -drip-  anything on the floor!!.
 I have seen = EGT=20 numbers in the low 1800s while at full throttle and running slightly = rich=20 without any noticeable change in muffler performance.  So far = no one=20 has said my muffler is louder than my first flight. 

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

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

Dennis H.

Bill Bradburry wrote:

Mark,

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

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

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

 

Bill=20 B 

 

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

OK, I can see this is going = nowhere.  So I=20 guess I'll have to tell you.   This is what came out of = my new=20 HP-2 muffler after a short 20 minute flight.  What you saw in = the=20 previous picture was the packing material MELTING and dripping out = the end=20 of the muffler.  In the second picture, you can see it oozing = out of=20 the little holes in the intermediate housing.  I was = expecting it to=20 "blow out" 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,=20 or lithium crystals.

Mark

 =20

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

Terminator Tweety?



Start = the year=20 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.
Version: 7.5.516 / Virus Database: 269.19.2/1221 - = Release Date:=20 12/01/2008 2:04 PM
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