X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtprh03.spirittelecom.com ([165.166.0.79] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTPS id 2204138 for flyrotary@lancaironline.net; Sat, 28 Jul 2007 08:05:17 -0400 Received-SPF: pass receiver=logan.com; client-ip=165.166.0.79; envelope-from=jewen@comporium.net X-Report-Abuse-To: abuse@spirittelecom.com Received: from engineer1 (165-166-183-191.lnhe.2wcm.comporium.net [165.166.183.191] (may be forged)) by smtprh03.spirittelecom.com (8.13.6/8.13.1) with SMTP id l6SC4amu020121 for ; Sat, 28 Jul 2007 12:04:37 GMT Message-ID: <009601c7d10f$73c455f0$6405a8c0@cooleygroup.local> From: "Joe Ewen" To: "Rotary motors in aircraft" Subject: Individual Exhaust Date: Sat, 28 Jul 2007 08:04:29 -0400 MIME-Version: 1.0 Content-Type: multipart/related; type="multipart/alternative"; boundary="----=_NextPart_000_0092_01C7D0ED.EC63F9B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 X-Virus-Scanned: ClamAV 0.88/3795/Sat Jul 28 02:08:57 2007 on smtprh03.spirittelecom.com X-Virus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0092_01C7D0ED.EC63F9B0 Content-Type: multipart/alternative; boundary="----=_NextPart_001_0093_01C7D0ED.EC63F9B0" ------=_NextPart_001_0093_01C7D0ED.EC63F9B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable What downsides are there to running individual exhaust pipes from each = rotor instead of combining into a manifold and single exhaust. This = question came after seeing a picture of a P-51, which has 12 individual = exhaust stacks. The immediate advantages are: easier fabrication, no = need to allow for manifold/pipe expansion. Thanks, Joe ------=_NextPart_001_0093_01C7D0ED.EC63F9B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

What downsides are there to = running individual=20 exhaust pipes from each rotor instead of combining into a manifold and = single=20 exhaust. This question came after seeing a picture of a = P-51,=20 which has 12 individual exhaust stacks. The immediate advantages = are:=20 easier fabrication, no need to allow for manifold/pipe = expansion.

Thanks,

Joe

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