X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=PbaBeRpd c=1 sm=1 tr=0 a=Nt+wn5+31kkTSTYYCHQw2w==:117 a=x7bEGLp0ZPQA:10 a=oSMvVwY2MYMA:10 a=_RQrkK6FrEwA:10 a=UKPAHat8AAAA:8 a=Ia-xEzejAAAA:8 a=xPyZ54XvAAAA:8 a=pGLkceISAAAA:8 a=jV3BzgDzAAAA:8 a=o1OHuDzbAAAA:8 a=jThZ7_-JAAAA:8 a=7g1VtSJxAAAA:8 a=Ry9g8OkulA5RtUD1-tsA:9 a=jTNkDL-VdcljQHfM:21 a=1eBsrGRhTsHiRlPh:21 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=S0wkRrzPavQA:10 a=3ZZtYhTcPa2exmWWU20A:9 a=i8PKF6cSf3DGU9QE:21 a=8d2oLWG1vR4uwtS1:21 a=zlXz0yviNXRza92q:21 a=Fc6xXSS-RxGHxrvp76Qp:22 a=Urk15JJjZg1Xo0ryW_k8:22 a=LQCduUwlY3eUW_MavTj7:22 a=9Uz93n4haClHrRxSevy5:22 a=5YQ6H4ZxyGn-KoBYtt8s:22 a=NVbvhy2gKIdozzgvQOKv:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "David Leonard wdleonard@gmail.com" Received: from mail-qk1-f176.google.com ([209.85.222.176] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 506351 for flyrotary@lancaironline.net; Wed, 08 Jul 2020 15:22:47 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.222.176; envelope-from=wdleonard@gmail.com Received: by mail-qk1-f176.google.com with SMTP id c139so42653647qkg.12 for ; Wed, 08 Jul 2020 12:22:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=irlGIwsRbvLqY+fo7Myrcluhmr4kM8d0qZA350/VeMo=; b=cAXcVmPHufYv9uPfGhVe63sAXUrLkzwonr5Po9EKUwRLVEqU5o+/TxJVFi5OmgViWl UIZU2bJ0byOMqVkX5HqjIj2z94FmlkHjf7IajwTGhlGUx0+DC7ZGCKy+MBXftNoHgH7F AqQf9GQGPA3TwbgAqo9Z1/URj0R8FQDM0Khs3ngat+pNcIPGROA3qZJEu0uQMVlYOUEK hfa3DoJFRhf4mF4qWNxIrZez/wDBQu0JxpNwuN0AobnH4h138F6G9z4rmB3Sd+DN8PTl 4IA+OOdx+abNQTm9Glf4KzW69IxKg9A/Sn72ZzTid9J0xHKRzE7PuvlJFj0p/T4jw/01 ziww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=irlGIwsRbvLqY+fo7Myrcluhmr4kM8d0qZA350/VeMo=; b=MgOq0LJ9YC92sr52qCcortAQezxqilKfWY1TFkBweCQ51UNbGIOweGcI4o1+PJX/OH ga3LFfB2QFvlIyi5xQEcggrNZvwDXXXsJw+k0ibIhKG4r/wRRi2nJ+DQkfPIVZezuneI xOlx70s8yw8hjVhOjzBcwLIG1zQSGwvcI1MqV1hn+Mg55cFWyFiITkpgDL/wiwobKlM5 buoxT48WODdAKtKFMTJy86cBk1ALFPN1axpQdpxFK/MSaZEvuStYazCwUNVB2Q8MuZSw UPFRpxMsutsKNk6/uAx6M/ydWsphCxPZXZW7MCgjrjdBMuuF5JPTh8ZAg3sRPI5Vkee+ LWrg== X-Gm-Message-State: AOAM530POsK+6TogZCodYt26oPcqCHCvkPNvPwaQ7ZHzC6A92EriJBO1 zCAtM+zEVzXfLllP1xFTtB21slPY1xc9DK29lHhkyA== X-Google-Smtp-Source: ABdhPJwpYRKf1UQ0SewfBq3Ej/KzgKToLyiq3JHvyKeP4kcmDxKYT1CEgVd9Eos4loISQ0+BOQ3YF0byKEXR1CweiW8= X-Received: by 2002:a37:b83:: with SMTP id 125mr56279202qkl.96.1594236150094; Wed, 08 Jul 2020 12:22:30 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Wed, 8 Jul 2020 12:22:18 -0700 Message-ID: Subject: Re: [FlyRotary] Re: Mufflers To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="0000000000006a1dd705a9f30795" --0000000000006a1dd705a9f30795 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Bobby, I think inconel is overkill. I have found that the 304 and 321 stainless have both held up to over 1000 hrs in my installation. I did develop cracks in the welds that held it to the turbo outlet flange, but they were easily repaired. Given the cost and workability benifits of SS, you might consider sticking with that. Inconel probably does belong on turbine blades. The stock cast iron manifold however is a weak point. Dave Leonard On Wed, Jul 8, 2020 at 11:35 AM Bobby J. Hughes bhughes@qnsi.net < flyrotary@lancaironline.net> wrote: > I=E2=80=99m at the exhaust header stage in my S21 FWF build. I=E2=80=99m = considering a > traditional header, 3-1 merge collector with 1.75=E2=80=9D primaries to = a 2.5=E2=80=9D > tube. I=E2=80=99m trying to be very weight conscious and looking for poss= ible > alternatives. The CA manifold can likely be built for nearly the same > weight as the header design in the picture. I=E2=80=99m a little concerne= d with the > tangential design. Mark S. built and tested one on his 20B. It ran hot an= d > caused the outer water jacket seals to fail. Mark was not running a > wideband so he couldn=E2=80=99t see a clear relationship between F/A and = EGT=E2=80=99s. He > may have be running at or near peak EGT=E2=80=99s. EGT=E2=80=99s for the = renesis can be > kept to between 1500F -1600F with a little extra or a little less fuel. I > will like install the coolant radiator on the belly so adding an external > muffler would keep it off centerline. > > > > *I have located some reasonable priced Inconel 625 0.040 sheets. If rolle= d > into a 5-6=E2=80=9D tube, would this thickness be sufficient for a muffle= r shell or > the CA / tangential manifold tube?* > > > > *Matt,* > > > > *How is your CA header holding up?* > > > > *Thanks,* > > > > *Bobby* > > > > > > > *From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net > ] Sent: Saturday, January 25, 2020 7:53 PMTo= : > Rotary motors in aircraftSubject: [FlyRotary] Re: Mufflers* > > > > > > > > *Okay so after 2 full days of having our welder out, finally brought the > CAD design to life. Except both days were all nighters, so I was too tire= d > and busy to take 'in progerss' pictures. Was tricky to build, which made > the hourly welding cost sky high, more then the engine itself. Hopefully > that means I can save money in the future on hearing aids.Thanks Charlie > for the tip on the spectrum analyzer. I didn't get any before numbers, bu= t > it's all low Hz now. That harsh high pitch is gone. Db's are still there, > but I'd say with just the muffler design, it's comparable > to typical lycoming. I can start to hear the prop noise over the engine > noise. I measured back pressure around 3.5psi @ 2200rpm prop.I ran out of > time to flight test the long pipe under the airplane. I quickly held it u= p > with my hands and the exhaust pretty much disappeared with the prop takin= g > over the noise. Before flying, I want to add backpressure gauge to that > part and drill holes to find a balance between backpressure and noise.* > > > > *SO the "header" muffler should make quite like any other plane, and the > "under belly" pipe will make you standout in silence.* > > > > *Since this email type newsletter is from the dinosaur ages, I'll add > pictures and > video to https://www.homebuiltairplanes.com/forums/threads/exhaust-within= -subcowl.30848/page-2#post-512762 > * > > > > *- Matt Boiteau* > > *On 2020-01-18 5:29:51 PM, Matt Boiteau > wrote:* > > > > > > > > *Have started on the exhaust. Made all three primaries 2" double slip > joints (that alone took almost a whole day with welder). The big can (CA > - Centrifugal Accumulator) rolled into a 5" can and we'll secure it to th= e > engine with straps.The inside pipe is 2.75" which has an area of 5.94sq". > I'm not sure if there's a magic number, but all the holes I drilled equal= ed > to just under double the area (11sq"). Most are 3/8, but I did add some 1= /2 > to get the total area up. Could we get away with drilling less holes? Not > sure. I'll be able to drill out one side end of the CA and pull out the > inner tube and change out. Will experiment later with less holes and > monitor back pressure. Will weld a npt bung on the CA and use the wideban= d > bung to measure the different.The previous exhaust with just an Aero > Turbine 2525XL, measured ~113dBA. With nothing, was closer to 120dBA. Fun= ny > around 2000 prop rpm was louder then at 2300 full static. * > > > > *- Matt Boiteau* > > *On 2020-01-07 12:19:23 AM, Matt Boiteau mattboiteau@gmail.com > > wrote:* > > *Okay I'll make all 3 primary tubes (2" diameter) all double slip fit. > Welding batwing tabs (picture below) on to either side on the slips, will > hold the muffler to the header but allow expansion.* > > > > *Having troubles finding 2.75" bends in 321, so I might have to just > switch to 3" downpipe that is more common. Vband clamp before downpipe fo= r > easier removal and under the plane to allow adding additional exhaust > setups (long pipe with holes drilled in it, fishmouth tailpipe, etc)* > > > > *I found a company that makes flex bellows in 321. I'm just not sure if I > should have it vertical on the downpipe or close to the muffler horizonta= l > before the first 90degree bend > downwards.https://www.aceraceparts.com/products/3-000-flex-bellow-assembl= y-321-stainless?variant=3D11067135556 > * > > > > > > *Batwing tabs* > > > > *- Matt Boiteau* > > *On 2020-01-03 4:22:18 PM, Neil Unger 12348ung@gmail.com > <12348ung@gmail.com> > wrote:* > > *Mat,* > > * As usual I have no idea. I made all 3 slip joints and > to date no grief in that area. I am coming around to the stock manifold = in > some way. Yes it is heavy, but appears to muffle the noise as well. Kno= w > of 2 installations that use the stock manifold with a simple muffler afte= r > and both claim "acceptable" noise. It appears that the stock manifold has= a > big influence on noise?? Would prefer a DB reading, but if not available > it is what it is. All is compromise, weight, cost, time, but at the end = of > the day it has to work. * > > *Still working on the turbo even though the world is on holidays. All to > save my hearing. So far the rotary is definitely "unique" as far as a > turbo is concerned. The heat generated exceeds all else. Two things to > date -- special exhaust wheel and water cooled bearing body =3D, all for > heat. Have modified the stock front plate on the renesis to take an > electric water pump. That is the simple bit.* > > *Neil.* > > *On 1/4/2020 5:37 AM, Matt Boiteau mattboiteau@gmail.com > wrote:* > > > > > > *okay I found a good company called SPD Exhaust. They have everything you > need in 321ss.With the engine being an RX8, we have three exhaust ports. > Should I weld the front and back solid to the muffler, and make the middl= e > one a slip fit for expansion? Or vice-vesa?* > > > > *- Matt Boiteau* > > *On 2019-12-28 11:03:42 AM, Finn Lassen finn.lassen@verizon.net > > wrote:* > > > > > > > > > > > > *I did something similar with my RV-3 13B decades ago. It split open at > the welds around one of the pipes from the manifold into the the big oute= r > tube. True, it did use individual manifold base plates, not the connected > factory manifold and the big tube was only 0.035.Still, I would recommend > slip joints on two of the three pipes, like I added on one of the pipes > (cut through and a surrounding bigger pipe -- missing in picture).Can't > remember why I went from the above to individual runners into a perforate= d > pipe under the fuselage. Probably got lured by promise of increased power > by tuned lengths and still uncomfortable by the muffler being inside the > cowling.FinnOn 12/28/2019 12:10 AM, Matt Boiteau mattboiteau@gmail.com > wrote:* > > *This is what I'm going to try in a few weeks. * > > *"Exhaust valve opens and a pulse of hot gas puffs out through a short > pipe, then tangentially into a cylindrical canister. Being tangential, th= e > pulse flattens out and travels helically (rather than bouncing and > reverberating around) along the inside curved wall of the can, spiraling > toward the exit, where it comes out more uniform in flow and so pretty > quiet."* > > > > *Outer pipe =3D 321 ss 0.050 thick. Flat plate bent to a 5" tube* > > *Inner pipe =3D 321 ss 0.036 thick. 2.5" diameter* > > *(I might use 302ss 0.065 since I already have it)* > > > > *From my understanding, the area of the holes should be double the area o= f > the inner pipe. * > > > > *- Matt Boiteau* > > > > > > > > * DisclaimerThe information contained in this communication from the > sender is confidential. It is intended solely for use by the recipient an= d > others authorized to receive it. If you are not the recipient, you are > hereby notified that any disclosure, copying, distribution or taking acti= on > in relation of the contents of this information is strictly prohibited an= d > may be unlawful.This email has been scanned for viruses and malware, and > may have been automatically archived by Mimecast Ltd, an innovator in > Software as a Service (SaaS) for business. Providing a safer and more > useful place for your human generated data. Specializing in; Security, > archiving and compliance. To find out more Click Here > .* > > > > * -- Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > * --0000000000006a1dd705a9f30795 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Bobby,

I think inconel is= overkill.=C2=A0=C2=A0 I have found that the 304 and 321 stainless have bot= h held up to over 1000 hrs in my installation.=C2=A0 I did develop cracks i= n the welds that held it to the turbo outlet flange, but they were easily r= epaired.=C2=A0 Given the cost and workability=C2=A0 benifits of SS, you mig= ht consider sticking with that.=C2=A0 Inconel probably does belong on turbi= ne blades.

The stock cast iron manifold however is= a weak point.

Dave Leonard

On Wed, Jul 8= , 2020 at 11:35 AM Bobby J. Hughes bhug= hes@qnsi.net <flyrota= ry@lancaironline.net> wrote:

I=E2=80=99m at the exhaust heade= r stage in my S21 FWF build. I=E2=80=99m considering a traditional header, = =C2=A03-1 merge collector with 1.75=E2=80=9D primaries to a 2.5=E2=80=9D tu= be. I=E2=80=99m trying to be very weight conscious and looking for possible= alternatives. The CA manifold can likely be built for nearly the same weig= ht as the header design in the picture. I=E2=80=99m a little concerned with= the tangential design. Mark S. built and tested one on his 20B. It ran hot= and caused the outer water jacket seals to fail. Mark was not running a wi= deband so he couldn=E2=80=99t see a clear relationship between F/A and EGT= =E2=80=99s.=C2=A0 He may have be running at or near peak EGT=E2=80=99s. EGT= =E2=80=99s for the renesis can be kept to between 1500F -1600F with a littl= e extra or a little less fuel. I will like install the coolant radiator on = the belly so adding an external muffler would keep it off centerline.

=C2=A0

<= u>I have located some reasonable priced Inc= onel 625 0.040 sheets. If rolled into a 5-6=E2=80=9D tube, would this thick= ness be sufficient for a muffler shell or the CA / tangential manifold tube= ?

=C2=A0

Matt,<= /u>

=C2=A0

How is your CA header holdin= g up?

<= span style=3D"color:rgb(31,73,125);font-family:"Calibri","sa= ns-serif";font-size:11pt">=C2=A0

<= p class=3D"MsoNormal">Thanks,

=C2=A0

Bobby

=C2=A0

From: Rotary motors in air= craft [mailto:flyrotary@lancaironline.net]
Sent: Saturday, January 25,= 2020 7:53 PM
To: Rotary motors in aircraft
Subject: [F= lyRotary] Re: Mufflers

=C2=A0

= Okay so after 2 full days of having our welde= r out, finally brought the CAD design to life. Except both days were all ni= ghters, so I was too tired and busy to take 'in progerss' pictures.= Was tricky to build, which made the hourly welding cost sky high, more the= n the engine itself. Hopefully that means I can save money in the future on= hearing aids.

Thanks Charlie for the tip on the=C2=A0spectrum analy= zer. I didn't get any before numbers, but it's all low Hz now. That= harsh high pitch is gone. Db's are still there, but I'd say with j= ust the muffler design, it's comparable to=C2=A0typical=C2=A0lycoming. = I can start to hear the prop noise over the engine noise. I measured back p= ressure around 3.5psi @ 2200rpm prop.

I ran out of time to flight te= st the long pipe under the airplane. I quickly held it up with my hands and= the exhaust pretty much disappeared with the prop taking over the noise. B= efore flying, I want to add backpressure gauge to that part and drill holes= to find a balance between backpressure and noise.=

= =C2=A0

<= u>SO the "header" muffler should make = quite like any other plane, and the "under belly" pipe will make = you standout in=C2=A0silence.

=C2=A0=

Since this email type newsletter is from the=C2=A0dinosaur=C2= =A0ages, I'll add pictures and video=C2=A0to=C2=A0h= ttps://www.homebuiltairplanes.com/forums/threads/exhaust-within-subcowl.308= 48/page-2#post-512762

=C2=A0

- Matt Boiteau

On 202= 0-01-18 5:29:51 PM, Matt Boiteau <mattboiteau@gmail.com> wrote:

Have start= ed on the exhaust. Made all three primaries 2" double slip joints (tha= t alone took almost a whole day with welder). The big can (CA -=C2=A0Centri= fugal Accumulator) rolled into a 5" can and we'll secure it to the= engine with straps.

The inside pipe is 2.75" which has an area= of 5.94sq". I'm not sure if there's a magic number, but all t= he holes I drilled equaled to just under double the area (11sq"). Most= are 3/8, but I did add some 1/2 to get the total area up.=C2=A0Could we ge= t away with drilling less holes? Not sure. I'll be able to drill out on= e side end of the CA and pull out the inner tube and change out. Will=C2=A0= experiment=C2=A0later=C2=A0with less holes and monitor back pressure. Will = weld a npt bung on the CA and use the wideband bung to measure the differen= t.

The previous exhaust with just an=C2=A0Aero Turbine 2525XL, measu= red ~113dBA. With nothing, was closer to 120dBA. Funny around 2000 prop rpm= was louder then at 2300 full static.=C2=A0

=

=C2=A0

- Matt Boiteau<= /span>

On 2020-01-07 12:19:23 AM, Matt Boiteau mattboiteau@gmail.com= <f= lyrotary@lancaironline.net> wrote:<= /p>

Okay I'll make al= l 3 primary tubes (2" diameter) all double slip fit. Welding=C2=A0batw= ing=C2=A0tabs (picture below) on to either side on the slips, will hold the= muffler to the header but allow expansion.

=C2= =A0

<= u>Having troubles finding 2.75" bends in 321, = so I might have to just switch to 3" downpipe that is more common. Vba= nd clamp before downpipe for easier removal and under the plane to allow ad= ding additional exhaust setups (long pipe with holes drilled in it, fishmou= th tailpipe, etc)


I found a company that mak= es flex bellows in 321. I'm just not sure if I should have it vertical = on the downpipe or close to the muffler horizontal before the first 90degre= e bend downwards.
https://www.aceraceparts.com/products/3-000-flex-bellow-assembly-321-stai= nless?variant=3D11067135556

<= p class=3D"MsoNormal">

=C2=A0

=C2=A0<= /u>

Batwing tabs

<= /span>

=C2=A0

- Matt Boiteau

On 2020-01-03 4:22:18 PM, Neil= Unger 12348ung@gma= il.com <flyrotary@lancaironline.net> wrote:

Mat,

=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= As usual I have no idea.=C2=A0 I made all 3 slip joints and to date no gri= ef in that area.=C2=A0 I am coming around to the stock manifold in some way= .=C2=A0 Yes it is heavy, but appears to muffle the noise as well.=C2=A0 Kno= w of 2 installations that use the stock manifold with a simple muffler afte= r and both claim "acceptable" noise. It appears that the stock ma= nifold has a big influence on noise??=C2=A0 Would prefer a DB reading, but = if not available it is what it is.=C2=A0 All is compromise, weight, cost, t= ime, but at the end of the day it has to work.=C2=A0 <= /u>

Still working on the turbo = even though the world is on holidays.=C2=A0 All to save my hearing.=C2=A0 S= o far the rotary is definitely "unique" as far as a turbo is conc= erned.=C2=A0 The heat generated exceeds all else.=C2=A0 Two things to date = -- special exhaust wheel and water cooled bearing body =3D, all for heat.= =C2=A0 Have modified the stock front plate on the renesis to take an electr= ic water pump.=C2=A0 That is the simple bit.

Neil.

On 1/4/2020= 5:37 AM, Matt Boiteau mattboiteau@gmail.com wrote:

okay I found a good company ca= lled SPD Exhaust. They have everything you need in 321ss.

With the e= ngine being an RX8, we have three exhaust ports. Should I weld the front an= d back solid to the muffler, and make the middle one a slip fit for expansi= on? Or vice-vesa?

=C2=A0=

<= span style=3D"color:black;font-family:"Arial","sans-serif&qu= ot;;font-size:10pt">- Matt Boiteau

On 2019-12-28 11:03:42 AM, Finn Lassen finn.lassen@verizon.net <= a href=3D"mailto:flyrotary@lancaironline.net" target=3D"_blank"><flyrota= ry@lancaironline.net> wrote:

I did something= similar with my RV-3 13B decades ago. It split open at the welds around on= e of the pipes from the manifold into the the big outer tube. True, it did = use individual manifold base plates, not the connected factory manifold and= the big tube was only 0.035.

Still, I would recommend slip joints o= n two of the three pipes, like I added on one of the pipes (cut through and= a surrounding bigger pipe -- missing in picture).



Can't remember why I went from the above to individual runners= into a perforated pipe under the fuselage. Probably got lured by promise o= f increased power by tuned lengths and still uncomfortable by the muffler b= eing inside the cowling.

Finn

On 12/28/2019 12:10 AM, Matt Bo= iteau mattboitea= u@gmail.com wrote:

This is what I'm going to try in= a few weeks.=C2=A0

"Exhaust valve opens and a pulse of hot gas puffs out through a short pip= e, then=C2=A0tangentially=C2=A0into a cylindrical canister. Being tangential, the puls= e flattens out and travels=C2=A0helically=C2=A0(rather than bounci= ng and reverberating around) along the inside curved wall of the can, spira= ling toward the exit, where it comes out more uniform in flow and so pretty= quiet."<= /u>

=C2=A0<= u>

Outer pipe =3D 321 ss 0.050 thick. Flat plate bent to= a 5" tube

Inner pipe =3D 321 ss 0.036 thick.= 2.5" diameter

(I might use 302ss 0.065 since= I already have it)

=C2=A0

From my understanding, the area of the holes should be double the ar= ea of the inner pipe.=C2=A0

=

=C2=A0

- Matt Boiteau

=C2=A0

=


Disclaimer

The information contained in this communication from th= e sender is confidential. It is intended solely for use by the recipient an= d others authorized to receive it. If you are not the recipient, you are he= reby notified that any disclosure, copying, distribution or taking action i= n relation of the contents of this information is strictly prohibited and m= ay be unlawful.

This email has been scanned for viruses and malware,= and may have been automatically archived by Mimecast Ltd, an innova= tor in Software as a Service (SaaS) for business. Providing a safer= and more useful place for your human generated data. Specializing = in; Security, archiving and compliance. To find out more Click Here.

 --
Homepage:=C2=A0 http://www.flyrotary.com/
Archive and UnSub:=C2=A0 =C2=A0http://mail= .lancaironline.net:81/lists/flyrotary/List.html
 --0000000000006a1dd705a9f30795--