X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from eastrmmtao107.cox.net ([68.230.240.59] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3820368 for flyrotary@lancaironline.net; Fri, 21 Aug 2009 09:02:09 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.240.59; envelope-from=tmann@n200lz.com Received: from eastrmimpo03.cox.net ([68.1.16.126]) by eastrmmtao107.cox.net (InterMail vM.8.00.01.00 201-2244-105-20090324) with ESMTP id <20090821130133.CYSW19505.eastrmmtao107.cox.net@eastrmimpo03.cox.net> for ; Fri, 21 Aug 2009 09:01:33 -0400 Received: from testPC ([70.184.217.221]) by eastrmimpo03.cox.net with bizsmtp id X11Y1c0054nBe720211YgY; Fri, 21 Aug 2009 09:01:33 -0400 X-VR-Score: 0.00 X-Authority-Analysis: v=1.0 c=1 a=Ia-xEzejAAAA:8 a=uWobue4rwnbwh1fvXsIA:9 a=vrJEJbwCwldRB1toerIA:7 a=ix9yQuOUhprGzED9T-tiaD6VB2IA:4 a=EzXvWhQp4_cA:10 a=yMhMjlubAAAA:8 a=SSmOFEACAAAA:8 a=loLVSVcUoLoXpC5BG5QA:9 a=-OxFE69KLttgzvdJcysA:7 a=h8tO4GjPcJO7Imd7Gfl8g8wWLpAA:4 X-CM-Score: 0.00 From: "Thomas Mann" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: Cowl Flap Date: Fri, 21 Aug 2009 08:01:31 -0500 Message-ID: <000c01ca225f$812ba880$8382f980$@com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000D_01CA2235.9855A080" X-Mailer: Microsoft Office Outlook 12.0 Thread-index: AcoiD3LWrRSJR+AoQHGLrUOQruNrlAAT0KCg Content-Language: en-us This is a multi-part message in MIME format. ------=_NextPart_000_000D_01CA2235.9855A080 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I have wondered if there would be any advantage to using a set of those expanding bellows things they have on a VW. They use them to control the amount of air passing over the fins on the cylinders. I read somewhere that a builder had incorporated them in his cowl to vent the area after landing. Once things cool off they contract and close the vent. I'm not sure whether or not it would fit this type of application. T Mann From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bryan Winberry Sent: Thursday, August 20, 2009 10:28 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Cowl Flap Great concept Ed. Perhaps a spring load biased to open position to ensure that the flap opens sooner as speed is reduced. Bryan Passive, and no electricity required! ------=_NextPart_000_000D_01CA2235.9855A080 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

I have wondered if there would be any advantage to using = a set of those expanding bellows things they have on a = VW.

They use them to control the amount of air passing over = the fins on the cylinders.

I read somewhere that a builder had incorporated them in = his cowl to vent the area after landing. Once things cool off they contract = and close the vent.

I’m not sure whether or not it would fit this type = of application.

T Mann

From:= Rotary = motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bryan Winberry
Sent: Thursday, August 20, 2009 10:28 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Cowl Flap

Great concept Ed. Perhaps a spring load biased to open position to ensure that the flap opens sooner as speed is reduced. =

Bryan

Passive, and no electricity required!

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