X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) From: " 12348ung@gmail.com" Received: from mail-pj1-f42.google.com ([209.85.216.42] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 1181481 for flyrotary@lancaironline.net; Mon, 01 Feb 2021 16:35:06 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.216.42; envelope-from=12348ung@gmail.com Received: by mail-pj1-f42.google.com with SMTP id z9so437278pjl.5 for ; Mon, 01 Feb 2021 13:35:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:references:in-reply-to:subject:date:message-id:mime-version :thread-index:content-language; bh=PLILbABjmqKify4TTpp6rGauzr6YWCKuFNVHIf5PnGI=; b=q4i7miVLSj3Wi/EQ5GAJWBAMFUY/rmZcgIgI+hE6ooJDMc/LAnEZxA/nDt/uxaExlm fEx+rQHZz4IDl45a1Uht2Fu9NLQeT9cS6n/Bjoh6dl1flDC6AQGhebKqlDUk08k17QmI dN+VrtNkJNQdwsr4pmVnI/KUbtHh0rK6vqZA240PsNuoxM9p8YWjH/ZpqPyVcNChDlFR IDsTkeAaGQjmj3AJuhFT5CuCJWoTGzWhhaQy9LvJAk7KP7/+M7MWUxIhZQRR298N546Q u3mudNYGaph/Dp3S51pQIYo4v8OqYzK5ftHHD/cWC3dCExETOSMQwO1429LMsRErtPs9 Razg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:references:in-reply-to:subject:date :message-id:mime-version:thread-index:content-language; bh=PLILbABjmqKify4TTpp6rGauzr6YWCKuFNVHIf5PnGI=; b=jMD2p3kBo4bY/uBxVthycBivjAmgtjFcd7nAnTX9Gn8Z+Pf8b7I/ehvT9EDn9ecUrt BoypARt14+KiZvmk4SinV/JvWn9DVxfqapwAhciZ4MjSOAclh8KiyrGzE0QNbPXMS9Bf s0O+DzdqGx0pyvASAf+Zzid845Tx69IVjkz1pf06E7g7sFxccptThPHuA9Aw35rtUKB3 vRlXjouNAJTibEifSm90f0Q+CgrV+iuHX8CLMdkQAFKHEQOvdBAs9A5bAdF99GzGjWER 6tzlDBhA0eI7c3Cj8tu7j8dZPMHGMDcVz8QFRCuyvU8WucMgO0EB+a49hOLcmoy3hJJB htpA== X-Gm-Message-State: AOAM531CotqyF7eMlZAeeD7O7p+5wrXqbuaA/K6Jf13tU1b8nTwLkAWi jaHq9cHNSmftwKtK3dzJdq/5HOP0lmnjIw== X-Google-Smtp-Source: ABdhPJz47Tb+LfCy9RiYQY7sH7w0tRIKMYzFZRP4YIxtGCr8Gi5l0qaKZJpD6zRkqyFlCcPWxIJnow== X-Received: by 2002:a17:902:edcf:b029:e1:7254:d1fa with SMTP id q15-20020a170902edcfb02900e17254d1famr3849410plk.45.1612215288301; Mon, 01 Feb 2021 13:34:48 -0800 (PST) Return-Path: <12348ung@gmail.com> Received: from UserPC ([103.198.24.78]) by smtp.gmail.com with ESMTPSA id w21sm18905475pff.220.2021.02.01.13.34.46 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 01 Feb 2021 13:34:47 -0800 (PST) To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Exhaust Date: Tue, 2 Feb 2021 08:34:45 +1100 Message-ID: <010601d6f8e2$1049fcf0$30ddf6d0$@gmail.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0107_01D6F93E.43BA74F0" X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQF5R4ArqiedWdZNXU04noomTW5HS6r/NC3Q Content-Language: en-us This is a multipart message in MIME format. ------=_NextPart_000_0107_01D6F93E.43BA74F0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Mat, Still working on the turbo, which means I have yet to fly = with it. Have also added a muffler, straight through, which has added = another 15 pounds weight. Apparently nil backpressure. Other than the = opinions of the muffler manufacturer I have no idea, but am determined = to shut the noise up. Regards, Neil. =20 From: Rotary motors in aircraft =20 Sent: Friday, January 29, 2021 1:51 PM To: Rotary motors in aircraft Subject: [FlyRotary] Exhaust =20 Neil,=20 =20 I haven't flown the plane since Oct, hoping to head back to the States = in two weeks. *Fingers crossed*. But in Oct, flying the plane around the exhaust noise = is a non-issue. I can talk to my passenger, and hear the radios. I like = the CAN centerforce design. I want to add some back pressure sensors = though, measure the CAN vs exhaust. Any idea what is too much for a = rotary ? Here's a link that talks about the exhaust. https://www.homebuiltairplanes.com/forums/threads/exhaust-within-subcowl.= 30848/page-2#post-512762 With the slip joint bellow, the outside 321ss cracked at the according = folds. The new one will be 625 inconel folds. Guessing too much = vibration. How has everyone else run their exhaust under the plane? Do = you put in any slip joints, or 1 big long connection. The bellow = actually turned out where the orange pipe is. I'm wondering if I should = put it in a different place now.. Can't attach pictures here, check out = the link to HomeBuilt. - Matt Boiteau ------=_NextPart_000_0107_01D6F93E.43BA74F0 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Mat,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0 Still working on the turbo, which means I have yet to fly = with it.=C2=A0 Have also added a muffler, straight through, which has = added another 15 pounds weight.=C2=A0 Apparently nil backpressure.=C2=A0 = Other than the opinions of the muffler manufacturer I have no idea, but = am determined to shut the noise up.

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 = Regards,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 = Neil.

 

From: Rotary motors in aircraft = <flyrotary@lancaironline.net>
Sent: Friday, January 29, = 2021 1:51 PM
To: Rotary motors in aircraft = <flyrotary@lancaironline.net>
Subject: [FlyRotary] = Exhaust

 

Neil, 

 

I haven't flown the plane since Oct, = hoping to head back to the States in two weeks.
*Fingers crossed*. = But in Oct, flying the plane around the exhaust noise is a non-issue. I = can talk to my passenger, and hear the radios. I like the CAN = centerforce design. I want to add some back pressure sensors = though, measure the CAN vs exhaust. Any idea what is too much for a = rotary ?

Here's a link that talks about the exhaust.
https://www.homebuiltairplanes.com/forums/threads/exhau= st-within-subcowl.30848/page-2#post-512762

With the slip = joint bellow, the outside 321ss cracked at the according folds. The = new one will be 625 inconel folds. Guessing too much vibration. How = has everyone else run their exhaust under the plane? Do you put in any = slip joints, or 1 big long connection. The bellow actually turned out = where the orange pipe is. I'm wondering if I should put it in a = different place now.. Can't attach pictures here, check out the link to = HomeBuilt.

- Matt = Boiteau

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