X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-bw0-f227.google.com ([209.85.218.227] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3871610 for flyrotary@lancaironline.net; Thu, 01 Oct 2009 17:18:38 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.218.227; envelope-from=msteitle@gmail.com Received: by bwz27 with SMTP id 27so485811bwz.19 for ; Thu, 01 Oct 2009 14:18:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=ugixrjyERv6Huc+DW2KDv8/EBVKFvOmljLMw8auDduU=; b=SfNKY+rnofskjHcssNtExUGc6YuZRkePY64mNg6ss1m2AzE9/7hLKD5WoB/PaBukE1 UAsLUa2DGwRa5F2/R20kNsVQYNKajdh5s7QF3x1VFryueTfDKrgWqLVTOC6m2fZYy5pm 2Bwp3Sa+kGPeX0pbZ+chF6XD4w81Ulk93PjzE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=Wk+hepnOkZtbPeO68K2RXPOOTAIJoraZogfehpaGsTP9wodLWAzDui1wuE19oVl2bZ iBiM5pmiII3gw3rFqVTIZf90J/Gty09O6BUp1+piPV+vydaSO4T3W0e1x7D1Vep4kcCb nUMCTSINgWXhayZGZRbZ+yCcZVnyS9qQlZYcI= MIME-Version: 1.0 Received: by 10.204.141.21 with SMTP id k21mr401316bku.124.1254431884183; Thu, 01 Oct 2009 14:18:04 -0700 (PDT) In-Reply-To: References: Date: Thu, 1 Oct 2009 16:18:04 -0500 Message-ID: <5cf132c0910011418m6a5e3eddgd616c3e0f466ec0a@mail.gmail.com> Subject: Re: [FlyRotary] "Tangential Muffler" was Quiet is Deafening From: Mark Steitle To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0015175d026cda07a70474e62eb0 --0015175d026cda07a70474e62eb0 Content-Type: text/plain; charset=ISO-8859-1 I agree on using Inconel... that's what I'm using for my new tangential muffler. Although my first exhaust manifold, which I'm still running, was made from commercial SS hand rail material and is holding up fine. It is heavy, but lighter than using the stock cast iron manifold. Ed Anderson is using these same SS handrails on his a/c and has lots of hours on them. The secret is in the thickness (.140"). Mark On Thu, Oct 1, 2009 at 1:28 PM, Kelly Troyer wrote: > Mark, > Probably should be made from "Inconel" to last..............My memory > fails me (regularly) but > if I recall correctly Al G's is inconel...............Jump in here > Al................... > -- > Kelly Troyer > "Dyke Delta"_13B ROTARY Engine > "RWS"_RD1C/EC2/EM2 > "Mistral"_Backplate/Oil Manifold > > > > > > -------------- Original message from Mark Steitle : > -------------- > > Kelly, > > You just need to fly at Mach 1 so you stay ahead of the sound. ;-) > > Can anyone report on the effectiveness of the tangential muffler in actual > real world situations? (As I recall Al G. is running a tangential muffler > on his Velocity.) I ask because I'm in the process of building one for my > Lancair with the hopes that it will work better than the DNA muffler that > I'm currently running. I think it will work better at reducing the noise > level in the cabin, but at what cost to power? Hopefully, this will save me > the cost of a new Zulu ANR headset. Comments appreciated. > > Mark S. > > On Wed, Sep 30, 2009 at 10:01 PM, Mike Wills wrote: > >> Kelly, >> >> If you think the quiet is deafening go fly behind a rotary - now thats >> deafening! >> >> Mike Wills >> RV-4 N144MW >> >> ----- Original Message ----- >> *From:* Kelly Troyer >> *To:* Rotary motors in aircraft >> *Sent:* Wednesday, September 30, 2009 7:15 AM >> *Subject:* [FlyRotary] Quiet is Deafening >> >> Anyone out there ??.....................<:) >> -- >> Kelly Troyer >> "Dyke Delta"_13B ROTARY Engine >> "RWS"_RD1C/EC2/EM2 >> "Mistral"_Backplate/Oil Manifold >> >> >> >> >> >> -------------- Original message from "Patrick Panzera" < >> panzera@experimental-aviation.com>: -------------- >> >> Hey gang! >> >> >> >> I came across a rare find this weekend. >> >> Any serious rotorhead will certainly appreciate this. >> >> >> >> Bluelines from 1973 of the General Motors Wankel Rotary engine. >> >> >> >> I just put them up on eBay >> >> >> >> http://tinyurl.com/GM-Rotary-drawings >> >> >> >> Pat >> >> >> >> > --0015175d026cda07a70474e62eb0 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
I agree on using Inconel... that's what I'm using for my new t= angential muffler.=A0 Although my first exhaust manifold, which I'm sti= ll running,=A0was made from commercial SS hand rail material and is holding= up fine.=A0 It is heavy, but lighter than using the stock cast iron manifo= ld.=A0 Ed Anderson is using these same SS handrails on his a/c and has lots= of hours on them.=A0 The secret is in the thickness (.140").=A0
=A0
Mark=A0

On Thu, Oct 1, 2009 at 1:28 PM, Kelly Troyer <keltro@att.net>= wrote:
Mark,
=A0=A0 Probably should be made from "Inconel" to last.......= .......My memory fails me (regularly) but
if I recall correctly Al G's is inconel...............Jump in here= Al...................
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
&q= uot;RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold <= br>


=A0
-------------- Original message from Mark Steitle <msteitle@gmail.com>= ;: --------------

Kelly,
=A0
You just need to fly at Mach 1 so you stay ahead of the sound.=A0 ;-)<= /div>
=A0
Can anyone report on the effectiveness of the tangential muffler in ac= tual real world situations?=A0 (As I recall Al G. is running a tangential m= uffler on his Velocity.)=A0 I ask because I'm in the process of buildin= g one for my Lancair with the hopes that it will work better than the DNA m= uffler that I'm currently running.=A0 I think it will work better at re= ducing the noise level in the cabin, but at what cost to power?=A0 Hopefull= y, this will save me the cost of a new Zulu ANR headset.=A0 Comments apprec= iated.
=A0
Mark S.

On Wed, Sep 30, 2009 at 10:01 PM, Mike Wills <rv= -4mike@cox.net> wrote:
Kelly,
=A0
=A0If you think the quiet is deafening= go fly behind a rotary - now thats deafening!
=A0
Mike Wills
RV-4 N144MW
----- Original Message -----
Sent: Wednesday, September 30, 2009 = 7:15 AM
Subject: [FlyRotary] Quiet is Deafen= ing

Anyone out there ??.....................<:)
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
&q= uot;RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold <= br>


=A0
-------------- Original message from "Patrick Panzera&q= uot; <panzera@experimental-aviation.com>: --------------

Hey gang!

=A0

I came across a rare find this week= end.

Any serious rotorhead will certainl= y appreciate this.

=A0

Bluelines from 1973 of the General = Motors Wankel Rotary engine.

=A0

I just put them up on eBay

=A0

http://tinyurl.com/GM-Rotary-drawings<= /span>

=A0

Pat

=A0



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