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 3871582 for flyrotary@lancaironline.net; Thu, 01 Oct 2009 16:56:38 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.218.227; envelope-from=msteitle@gmail.com Received: by bwz27 with SMTP id 27so472028bwz.19 for ; Thu, 01 Oct 2009 13:56:02 -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=DZJRi6awGrxF6YUd9xKG8PH2ioJ+t2+MHIWndM3Ehvk=; b=Sg1BRp277R0zuOIDMyYsDFfP6ySxTf7AbPtjgoAo1aYQEuL806NNY8acfXfRFG8eMq swFhyb17PBpF08tDh5W5CNhmpAWjOOrH+ON4ueWKtUXOYjx4q087Q6JBoSJviqS/q/Tm W1maHtn7paB8Z55A2NnZJZ6Kz7auJAhX6qul0= 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=NZgzNURehVyFByq6UmuAq2TdrnANhN0J/2aaUkhPvdVn0Xzq+Jv6wq+3QyF2uXorCV 7WZ7XqSKNx4+FFepudtjX6dXZHoDUwRPPzkWymkgyZJ6LPbPZeNMtlcTAZg9rSBQZRpJ ro0O6OaDGGwvaQPjHWnCwIAYMVJgbx/cPoGJ4= MIME-Version: 1.0 Received: by 10.204.153.217 with SMTP id l25mr380287bkw.108.1254430562749; Thu, 01 Oct 2009 13:56:02 -0700 (PDT) In-Reply-To: References: Date: Thu, 1 Oct 2009 15:56:02 -0500 Message-ID: <5cf132c0910011356x1b3ea1fg1fcd409539931a41@mail.gmail.com> Subject: Re: [FlyRotary] "20B/13B Exhaust Inserts" was Quiet is Deafening From: Mark Steitle To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0015175d094e168ece0474e5e021 --0015175d094e168ece0474e5e021 Content-Type: text/plain; charset=ISO-8859-1 No, at least not to me. But I have figured out that the exhaust splitter on the 20B leads to a passage going up to the EGR. On Thu, Oct 1, 2009 at 1:37 PM, Kelly Troyer wrote: > Mark, > Has anyone ever explained the reasoning for the odd "D" shape of the > stock "Cosmo" 20B/13B rotor > housing exhaust inserts ??.....................Inquiring minds want to know > !!.................. > -- > Kelly Troyer > "Dyke Delta"_13B ROTARY Engine > "RWS"_RD1C/EC2/EM2 > "Mistral"_Backplate/Oil Manifold > > > > > > -------------- Original message from Mark Steitle : > -------------- > > I may end up with a turbo, but I'm hoping the tangential muffler will work > well enough to keep that option off the table. I'm also building a new > p-port engine to replace the stock 3-rotor, so I really don't anticipate > needing any more hp. This time I plan to leave the stock exhaust splitters > in the rotor housings. > > Mark > > On Thu, Oct 1, 2009 at 11:02 AM, John Slade wrote: > >> >What kind of muffler are you running? Is it working? >> Its a Turbonetics T04 turbo, and yes, it works quite well. Also has a few >> other side benefits. :) >> Of course, building the airplane out of foam and fiberglass rather than >> metal helps deaden the vibrations too. >> Regards, >> John >> >> >> Mark Steitle wrote: >> >> John, >> >> What kind of muffler are you running? Is it working? >> >> Mark >> On Thu, Oct 1, 2009 at 10:48 AM, John Slade wrote: >> >>> >You just need to fly at Mach 1 so you stay ahead of the sound. >>> No need to go Mach 1. Just put the engine on the back, where it's >>> supposed to be. :) >>> >>> >>> -- >>> >>> Homepage: http://www.flyrotary.com/ >>> >>> Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html >>> >>> >> >> -- >> >> Homepage: http://www.flyrotary.com/ >> >> Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html >> >> > --0015175d094e168ece0474e5e021 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
No, at least not to me.=A0 But I have figured out that the exhaust spl= itter on the 20B=A0leads to=A0a passage going up to the EGR.=A0
=A0
=A0

On Thu, Oct 1, 2009 at 1:37 PM, Kelly Troyer <keltro@att.net>= wrote:
Mark,
=A0 Has anyone ever explained the reasoning for=A0the odd "D"= ; shape of the stock "Cosmo" 20B/13B rotor
housing exhaust inserts ??.....................Inquiring minds want to= know !!..................
--
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>= ;: --------------

I may end up with a turbo, but I'm hoping the tangential muffler w= ill work well enough to keep that option off the table.=A0 I'm also bui= lding a new p-port engine to replace the stock 3-rotor, so I=A0really don&#= 39;t anticipate needing=A0any more hp.=A0=A0This time I=A0plan to=A0leave t= he stock exhaust splitters in the rotor housings.=A0
=A0
Mark

On Thu, Oct 1, 2009 at 11:02 AM, John Slade <jslade@canardaviation.com> wrote:
>What kind of muffler are you running?=A0 Is it working?=A0
<= /div>
Its a Turbonetics T04 turbo, and yes, it works quite well.=A0 Also has= a few other side benefits. :)
Of course, building the airplane out of f= oam and fiberglass rather than metal helps deaden the vibrations too.
Regards,
John=20


Mark Steitle wrote:=20
John,
=A0
What kind of muffler are you running?=A0 Is it working?=A0

Mark
On Thu, Oct 1, 2009 at 10:48 AM, John Slade <jslade@canardaviation.com> wrote:
&= gt;You just need to fly at Mach 1 so you stay ahead of the sound.No need to go Mach 1. Just put the engine on the back, where it's supp= osed to be. :)


--

Homepage:  http://w=
ww.flyrotary.com/

Archive and UnSub:   http://mail.lancaironline.net:81/lists/f=
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