X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=No+TSIVJ c=1 sm=1 tr=0 a=PfljCweHXHZr3fS9hjJSJw==:117 a=55z/sxGcUIPVrBMYBb4HRw==:17 a=x7bEGLp0ZPQA:10 a=_Z_nqdSeG58A:10 a=3JhidrIBZZsA:10 a=r77TgQKjGQsHNAKrUKIA:9 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=7g1VtSJxAAAA:8 a=ol34ZH4cmtkjrJDNQ64A:9 a=QV1ItBPOn3K3eCeX:21 a=IW6MxzTetP8q91So:21 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=4PR2P7QzAAAA:8 a=GuLFiQ3N2LjfL1k7NNgA:9 a=JuEpa19s8rZn5Byf:21 a=DokCVC7A_23bIHKP:21 a=3w75aULNhd0ZY3P0:21 a=_W_S_7VecoQA:10 a=Urk15JJjZg1Xo0ryW_k8:22 a=grOzbf7U_OpcSX4AJOnl:22 a=4dqwQCo7Po2mVW515mGf:22 From: "Neil Unger 12348ung@gmail.com" Received: from mail-pf1-f171.google.com ([209.85.210.171] verified) by logan.com (CommuniGate Pro SMTP 6.2.10) with ESMTPS id 12073092 for flyrotary@lancaironline.net; Sat, 05 Jan 2019 15:43:26 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.210.171; envelope-from=12348ung@gmail.com Received: by mail-pf1-f171.google.com with SMTP id b85so19910366pfc.3 for ; Sat, 05 Jan 2019 12:43:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language; bh=85Im2dBg1U9k/JXLIv11PfKb2jNqcU71L3mXF2vwwck=; b=qOMAY3lh4tBCdlmsxQtQAFW17WndNfhA0di+NWpzslokSubosw7D2SI/aZ45PiAoMj T8HIAFAyZjpxhOMiSN/EKF/RJ8Mb0K368IuXYoqdvLv8pfM6Jr7TtfZA9c5rCKCLBWVM cYFKMVxuPGbPJUX/5GR7wkJ0N2rP9w7+V7jgaxyKn1iful/2oI1DYwf9dkMF72Vt1tDk HQkCxpselkExgOaBqRMIYfjpOI7H64tmdaYOGMDJvEAMc3JvKgbpbcLNyPK3KddN+W+H yb1/Cb3rrNYvMJtlkQaApTrzKbD6k0TpBG744zOkngPiTWvIlTU9c0wztprnyvmaqjjr aLHw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language; bh=85Im2dBg1U9k/JXLIv11PfKb2jNqcU71L3mXF2vwwck=; b=dWFuKGtuepSlysPDkDsNaEXaaSgIgPsosF05CFpDkwLsljlU2mqEGUEaMPE0vYG9Ok Au/pGUOa7bd9eQn+WlItbaOKNYR29DQPiuA7PaiHbu02Knz71snY0G4w3APFO6+zV0vP 0k23O0+R7hayeqWXq5dVAA7ELZ8qZrHq6gX37diVU+5p2MXqF4oCZzzxdBzIUPp9ZUog t4TuQKN3Z3pS6Ggclh1nsmAIL3cW+0La4TchkPguWQMVyvCytr/QbPHz+0A7mz6n8PIg 23tXVjOaod5nnUatvbaMyAF21HQa+FK+YzxlSosFHtBqqYRj9R88Ey7V8IbZ4d8a8YVO 8Vew== X-Gm-Message-State: AJcUukcC4rv5WdDRHRbB0QwDaVrDf/r0N7VrC3F5TKxlgDR7F6C6V5wt 3FzTkiL7wsxdmrAcN31RtsQ98UTS X-Google-Smtp-Source: ALg8bN4ZMwHBI8JSETEcX6GxgthwTI/LOtMHI/z0Wr1yxQHNI/Dgd3G38SHNRxa3XCRjgOGFJ5hOCw== X-Received: by 2002:a62:cd44:: with SMTP id o65mr4149474pfg.222.1546720988947; Sat, 05 Jan 2019 12:43:08 -0800 (PST) Return-Path: <12348ung@gmail.com> Received: from [192.168.0.103] ([103.198.24.78]) by smtp.gmail.com with ESMTPSA id g2sm83877779pfi.95.2019.01.05.12.43.06 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 05 Jan 2019 12:43:07 -0800 (PST) Subject: Re: [FlyRotary] Exhaust setup's To: Rotary motors in aircraft References: Message-ID: <5d31f019-f2e4-fd67-573c-f87cc2825658@gmail.com> Date: Sun, 6 Jan 2019 07:43:04 +1100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------888B325D0A1336AA4AE090EC" Content-Language: en-US This is a multi-part message in MIME format. --------------888B325D0A1336AA4AE090EC Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Mat,   as usual I have no idea.  you will only know after you spend a lot of non flying time to find out.  I suggest to get flying and just see if the noise is too loud.  As usual "suck it and see".  I would love you to find out as I have exactly the same sitting in my workshop, but never got to installing it.  Happy new year! On 1/6/2019 4:32 AM, Matt Boiteau mattboiteau@gmail.com wrote: > *Anybody have advice on how they run their exhaust exit systems?* > > - Matt Boiteau > > ------ Forwarded Message -------- > From: Matt Boiteau mattboiteau@gmail.com > Date: 12/9/2018 10:13:56 PM > Subject: [FlyRotary] Exhaust setup's > To: Rotary motors in aircraft > > I'm at the stage of securing an exhaust setup. How do you guys do it? > > I'll have a sub-cowl under the belly of the plane (shape of a tear > drop), which will streamline the main cowl air (coolant and oil outlets). > > I'm thinking I exit the exhaust (2.5" pipe) inside the sub-cowl and > have a 5" wrapped around it which ends out the sub-cowl for x length. > This should help create a vacuum and pump out the main cowl air. > > Before exiting the main exhaust pipe, should I have perforated holes > or louvers in it? > > > - Matt Boiteau > -- 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 --------------888B325D0A1336AA4AE090EC Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit

Mat,   as usual I have no idea.  you will only know after you spend a lot of non flying time to find out.  I suggest to get flying and just see if the noise is too loud.  As usual "suck it and see".  I would love you to find out as I have exactly the same sitting in my workshop, but never got to installing it.  Happy new year!

On 1/6/2019 4:32 AM, Matt Boiteau mattboiteau@gmail.com wrote:
*Anybody have advice on how they run their exhaust exit systems?*

- Matt Boiteau

------ Forwarded Message --------
From: Matt Boiteau mattboiteau@gmail.com <flyrotary@lancaironline.net>
Date: 12/9/2018 10:13:56 PM
Subject: [FlyRotary] Exhaust setup's
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

I'm at the stage of securing an exhaust setup. How do you guys do it?

I'll have a sub-cowl under the belly of the plane (shape of a tear drop), which will streamline the main cowl air (coolant and oil outlets).

I'm thinking I exit the exhaust (2.5" pipe) inside the sub-cowl and have a 5" wrapped around it which ends out the sub-cowl for x length. This should help create a vacuum and pump out the main cowl air.

Before exiting the main exhaust pipe, should I have perforated holes or louvers in it?


- Matt Boiteau
-- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html 

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