X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 10 [X] Return-Path: Received: from web31302.mail.mud.yahoo.com ([68.142.198.97] verified) by logan.com (CommuniGate Pro SMTP 5.1.6) with SMTP id 1855326 for flyrotary@lancaironline.net; Thu, 22 Feb 2007 08:04:07 -0500 Received-SPF: none receiver=logan.com; client-ip=68.142.198.97; envelope-from=allenslominski@yahoo.com Received: (qmail 15329 invoked by uid 60001); 22 Feb 2007 13:03:20 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=DVnPM5uXs88NcXNxJGtniiID06UYt4DE8Q2Lo1Bw9NPCBta+ipKdmVGbIeZvEdfZ/K2z3LuT+N+aUkgEBhgDT4tdoAxIDI9geOJlXEetyHgadfQZ/GT8F09XBupOKaHMonO6NeWKAlnim8SwjoYnU2XTzsokGK2q/T9pMQ3Hjq8=; X-YMail-OSG: U7oSe5IVM1n0g1UDIu161vScBhmFbh.jCk39d1pAp.bAb02EfaEYWoH_1KjgP7zgLzz1egA2QMqCOXlul5A4Ns0euCd5yFSY00WESyMEwbTStSq7CV89xS3jTLYEqpqZgNY5oRnKACfcPCggp8cEVbxaBWxf0rhI7Q-- Received: from [208.110.201.2] by web31302.mail.mud.yahoo.com via HTTP; Thu, 22 Feb 2007 05:03:20 PST Date: Thu, 22 Feb 2007 05:03:20 -0800 (PST) From: Allen Slominski Subject: Re: [FlyRotary] Re: Another exploding cigar?? To: Rotary motors in aircraft In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-784018775-1172149400=:13870" Content-Transfer-Encoding: 8bit Message-ID: <626476.13870.qm@web31302.mail.mud.yahoo.com> --0-784018775-1172149400=:13870 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Buly, It's a BD4, tractor. Allen Bulent Aliev wrote: Allen, The plane you are building will make difference in your exhaust options. Tractor or pusher? Bulent "Buly" Aliev FXE Ft lauderdale, FL http://tinyurl.com/dcy36 On Feb 21, 2007, at 9:48 PM, Allen Slominski wrote: > Ed, > > I'm a newby to the rotary, but I understand that the temps are > pretty outrageous also. Somethink like 1700 to 1900 degrees F. > Does anyone have a spec or detail for exhaust systems? Mufflers > would be nice also. > > Allen Slominski > Houston, TX > > Ed Anderson wrote: > Hi Dave. > > Basically, the Swiss muffler is attributed to the tough noise > abatement rules of the Swiss government for aircraft - including > small GA and experimental. Tony Bingelis who wrote a column of > "How to" for Sport Aviation for years included it in one of his > books "FireWall Forward"-Page 112. > > The muffler (as shown in his book) was an aluminum tube 3 1/8" in > diameter about 4 -5 feet long. A stainless steel mesh was rolled > into a smaller diameter tube to be stuck in the middle after > fiberglass cloth was wrapped around the mesh tube. This was all > stuffed in the 3 1/8" aluminum tube making a very light weight and > effective muffler. Sort of a light weight glass-pack muffler. > > It was then hung under the belly of the aircraft. > > The problem for the rotary is that the exhaust pulse will pulverize > fiberglass (or almost anything else in short time). Again, the > problem is not the heat its the power of the exhaust pulse. > > Hope that explained it. > > > Ed > ----- Original Message ----- > From: david mccandless > To: Rotary motors in aircraft > Sent: Wednesday, February 21, 2007 6:44 PM > Subject: [FlyRotary] Re: Another exploding cigar?? > > On 22, Feb , at 6:29 AM, Ed Anderson wrote: > Thanks, Jason. > My experiments with the Swiss muffler did not work out - > Ed > Hi Ed, > could you explain "Swiss" muffler? > TIA, Dave > -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ --0-784018775-1172149400=:13870 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit
Buly,
 
It's a BD4, tractor.
 
Allen

Bulent Aliev <atlasyts@bellsouth.net> wrote:
Allen,
The plane you are building will make difference in your exhaust
options. Tractor or pusher?
Bulent "Buly" Aliev
FXE Ft lauderdale, FL
http://tinyurl.com/dcy36

On Feb 21, 2007, at 9:48 PM, Allen Slominski wrote:

> Ed,
>
> I'm a newby to the rotary, but I understand that the temps are
> pretty outrageous also. Somethink like 1700 to 1900 degrees F.
> Does anyone have a spec or detail for exhaust systems? Mufflers
> would be nice also.
>
> Allen Slominski
> Houston, TX
>
> Ed Anderson wrote:
> Hi Dave.
>
> Basically, the Swiss muffler is attributed to the tough noise
> abatement rules of the Swiss government for aircraft - including
> small GA and experimental. Tony Bingelis who wrote a column of
> "How to" for Sport Aviation for years included it in one of his
> books "FireWall Forward"-Page 112.
>
> The muffler (as shown in his book) was an aluminum tube 3 1/8" in
> diameter about 4 -5 feet long. A stainless steel mesh was rolled
> into a smaller diameter tube to be stuck in the middle after
> fiberglass cloth was wrapped around the mesh tube. This was all
> stuffed in the 3 1/8" aluminum tube making a very light weight and
> effective muffler. Sort of a light weight glass-pack muffler.
>
> It was then hung under the belly of the aircraft.
>
> The problem for the rotary is that the exhaust pulse will pulverize
> fiberglass (or almost anything else in short time). Again, the
> problem is not the heat its the power of the exhaust pulse.
>
> Hope that explained it.
>
>
> Ed
> ----- Original Message -----
> From: david mccandless
> To: Rotary motors in aircraft
> Sent: Wednesday, February 21, 2007 6:44 PM
> Subject: [FlyRotary] Re: Another exploding cigar??
>
> On 22, Feb , at 6:29 AM, Ed Anderson wrote:
> Thanks, Jason.
> My experiments with the Swiss muffler did not work out -
> Ed
> Hi Ed,
> could you explain "Swiss" muffler?
> TIA, Dave
>


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