X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-ve0-f178.google.com ([209.85.128.178] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTPS id 6477027 for flyrotary@lancaironline.net; Mon, 16 Sep 2013 09:15:00 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.128.178; envelope-from=rwstracy@gmail.com Received: by mail-ve0-f178.google.com with SMTP id jw12so2883790veb.23 for ; Mon, 16 Sep 2013 06:14:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=subject:references:from:content-type:in-reply-to:message-id:date:to :content-transfer-encoding:mime-version; bh=z3OVJ7a4RWSMMYP5DLf1OuRYdWBmwYVXK4ilza1TsZU=; b=ltUP+TEwwMaxYSaj3OK3Ui/TYLpnszXV5b1WfFLT7soyfaZFBjiwF7A00pXr8flbID eJuoWOFQbBbO0q5ngsLpWFsvMmSVCxYtUqp/hEfDrBnU6Rk7ysqO9kg0pR+h0JWrbu4q bm8Awg3a3T3dnSx3yGHkNpbFsF9T0/q8RdREVg8GIl83SEKSx/9tSwCj1dHpeutOaJwE ZSqdey0O6i19jOv7wNmhgG5O4YzBTRIuDT5R4NmgVeIqON8V/TuozCXeK2AepO2J5Fs0 iVp7I2D85g5ouup2RKhNNSC4tsQ5iq3blH6ui41M10DxwQV3/j4Am7UJffTodBhR1ULB +YAg== X-Received: by 10.52.170.232 with SMTP id ap8mr45103vdc.40.1379337264757; Mon, 16 Sep 2013 06:14:24 -0700 (PDT) Return-Path: Received: from [192.168.1.2] (67.sub-70-209-1.myvzw.com. [70.209.1.67]) by mx.google.com with ESMTPSA id tf9sm18751757veb.7.1969.12.31.16.00.00 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 16 Sep 2013 06:14:23 -0700 (PDT) Subject: Re: [FlyRotary] Re: Aero Turbine Muffler test References: From: Tracy Content-Type: multipart/alternative; boundary=Apple-Mail-4952D83F-60C6-4F07-AE00-39DE1C126AAF X-Mailer: iPad Mail (10B329) In-Reply-To: Message-Id: <44E3CACE-90AB-4CFE-B5F1-F5D8AF204556@gmail.com> Date: Mon, 16 Sep 2013 09:14:21 -0400 To: Rotary motors in aircraft Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) --Apple-Mail-4952D83F-60C6-4F07-AE00-39DE1C126AAF Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Still using it on the 20B, think the sound level has increased slightly, may= be because the packing in the resonator portion in front part has gone away.= Still using the Hushpower II on the Renesis. The Renesis is quieter than= the earlier 13/20B with all else being equal. Recently put a new exhaust system on my car (stock was completely silent, ha= ted it) and like the sound so much I'd put it on my plane if it fit and didn= 't weigh too much. Tracy On Sep 15, 2013, at 18:53, Charlie England wrote: > Hey Tracy, >=20 > Any updates on the Aeroturbine Muffler? Have you tried one on the Renesis y= et? >=20 > Next time you head west, please stop in to see us so I can hear it in oper= ation. :-) >=20 > Thanks, >=20 > Charlie >=20 > On 12/9/2012 8:11 AM, Tracy wrote: >> AT2525xl from http://www.mandrelbendingsolutions.com >>=20 >> Tracy >>=20 >> On Sun, Dec 9, 2012 at 8:52 AM, Rob wrote: >>> Hi Tracy, >>> Which model # Aero Turbine muffler did you use? >>> Robert Bollinger >>> MR722 MUM >>> 1000 N 4th ST >>> Fairfield, IA 52557 >>> (641)919-3213 >>> ----- Original Message ----- >>> From: Tracy >>> To: Rotary motors in aircraft >>> Sent: Saturday, December 08, 2012 3:10 PM >>> Subject: [FlyRotary] Re: Aero Turbine Muffler test >>>=20 >>> Two flight tests totaling 3.5 hours so far on the Aero Turbine muffler (= XL version with resonator built in) on the 20B powered RV-8. Best muffler t= ested so far. Quieter than even the Spintech which was the previous best. T= he irritating high frequencies are virtually eliminated from t= he exhaust. No noticeable increase in drag. No increase in power or fuel e= conomy either in spite of claims printed on the box. The beautiful polished= 304 stainless finish disappears pretty quick with the rotaries hot exhaust.= If the muffling performance holds up I'll be very satisfied. At $79.00 it= 's a bargain. >>>=20 >>> Tracy >=20 --Apple-Mail-4952D83F-60C6-4F07-AE00-39DE1C126AAF Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit
Still using it on the 20B, think the sound level has increased slightly, maybe because the packing in the resonator portion in front part has gone away.   Still using the Hushpower II on the Renesis.  The Renesis is quieter than the earlier 13/20B with all else being equal.

Recently put a new exhaust system on my car (stock was completely silent, hated it) and like the sound so much I'd put it on my plane if it fit and didn't weigh too much.

Tracy

On Sep 15, 2013, at 18:53, Charlie England <ceengland7@gmail.com> wrote:

Hey Tracy,

Any updates on the Aeroturbine Muffler? Have you tried one on the Renesis yet?

Next time you head west, please stop in to see us so I can hear it in operation. :-)

Thanks,

Charlie

On 12/9/2012 8:11 AM, Tracy wrote:
AT2525xl   from    http://www.mandrelbendingsolutions.com

Tracy

On Sun, Dec 9, 2012 at 8:52 AM, Rob <rob@mum.edu> wrote:
Hi Tracy,
Which model # Aero Turbine muffler did you use?
Robert Bollinger
MR722 MUM
1000 N 4th ST
Fairfield, IA 52557
(641)919-3213
----- Original Message -----
From: Tracy
Sent: Saturday, December 08, 2012 3:10 PM
Subject: [FlyRotary] Re: Aero Turbine Muffler test

Two flight tests totaling 3.5 hours so far on the Aero Turbine muffler (XL version with resonator built in) on the 20B powered RV-8.   Best muffler tested so far.  Quieter than even the Spintech which was the previous best.  The irritating high frequencies are virtually eliminated from the exhaust.   No noticeable increase in drag.  No increase in power or fuel economy either in spite of claims printed on the box.  The beautiful polished 304 stainless finish disappears pretty quick with the rotaries hot exhaust.  If the muffling performance holds up I'll be very satisfied.  At $79.00 it's a bargain.

Tracy


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