X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.121] verified) by logan.com (CommuniGate Pro SMTP 5.2c4) with ESMTP id 2645316 for flyrotary@lancaironline.net; Mon, 14 Jan 2008 19:07:58 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.121; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([24.74.103.61]) by cdptpa-omta06.mail.rr.com with SMTP id <20080115000717.OZRJ26668.cdptpa-omta06.mail.rr.com@edward2> for ; Tue, 15 Jan 2008 00:07:17 +0000 Message-ID: <001701c8570a$5ad58010$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: SpinTech was [FlyRotary] Re: What's this Date: Mon, 14 Jan 2008 19:05:35 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0014_01C856E0.71AC00E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_0014_01C856E0.71AC00E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Tracy probably has the longest flight time with a spintech. Best I = recall it was still doing fine when he took it off - just couldn't = stand its very dirty aerodynamic shape. I do not know of one failing = and it DOES NOT have any packing {:>) Ed=20 ----- Original Message -----=20 From: Joe Berki=20 To: Rotary motors in aircraft=20 Sent: Monday, January 14, 2008 5:30 PM Subject: [FlyRotary] Re: What's this 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_0014_01C856E0.71AC00E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Tracy probably has the longest flight time with = a=20 spintech.  Best I recall it was still doing fine when he took it = off -=20  just couldn't stand its very dirty aerodynamic shape.  I do = not know=20 of one failing and it DOES NOT have any packing {:>)
 
 
Ed 
----- Original Message -----
From:=20 Joe Berki=20
Sent: Monday, January 14, 2008 = 5:30=20 PM
Subject: [FlyRotary] Re: What's = this

How do the spin tech mufflers hold=20 up?
----- Original Message -----
From:=20 Mark=20 Steitle
To: Rotary motors in = aircraft=20
Sent: Monday, January 14, = 2008 5:11=20 PM
Subject: [FlyRotary] Re: = What's=20 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=20 finish 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=20 that 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=20 glue or strapping that holds the packing material in place, before = they=20 put on 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=20 still looks shiny, but it has a definite honey color to = it.  Yes, I=20 plan to fly it again.  If the packing material melts, or = gets=20 pulverized, so be it.  As long as it hasn't lost its=20 structural integrity I will fly it.  Of course, if it gets = too loud=20 for the ANR to handle the noise, or if people start to complain, = then=20 I'll change it out.  I'm growing weary of working on the = exhaust=20 system.  It is still 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=20 its guts on the hangar floor. 
 
Yes, come on down.  Best BBQ for miles=20 around.  
 
Mark  

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

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

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

Dennis=20 H.

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

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

 

Bill = B 

 

From: Rotary = motors in=20 aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Mark=20 Steitle
Sent:=20 Sunday, 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 = flight.  What you saw in the previous picture was the = packing=20 material MELTING and dripping out the end of the = muffler.  In=20 the second picture, you can see it oozing out of the little = holes in=20 the 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=20 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=20 Edition.
Version: 7.5.516 / Virus Database: 269.19.2/1224 - = Release=20 Date: 1/14/2008 5:39 PM
------=_NextPart_000_0014_01C856E0.71AC00E0--