X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.123] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3820392 for flyrotary@lancaironline.net; Fri, 21 Aug 2009 09:26:54 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.123; envelope-from=eanderson@carolina.rr.com Received: from computername ([75.191.186.236]) by cdptpa-omta02.mail.rr.com with ESMTP id <20090821132612981.MLRA8845@cdptpa-omta02.mail.rr.com> for ; Fri, 21 Aug 2009 13:26:12 +0000 From: "Ed Anderson" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Cowl Flap Date: Fri, 21 Aug 2009 09:24:29 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0049_01CA2241.2F5E2C80" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 In-Reply-To: Thread-Index: AcoiX5uGiUS7RcjKQNKfKfoqUpL3lQAAsCQQ X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Message-Id: <20090821132612981.MLRA8845@cdptpa-omta02.mail.rr.com> This is a multi-part message in MIME format. ------=_NextPart_000_0049_01CA2241.2F5E2C80 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Actually, Thomas back about 12 years ago I purchased some of those VW 'bellows" type expansion servos that worked based on the temperature they sense. I had planned to use them similar to what you suggested - but, got my cooling problem under control by moving a RX-7 oil cooler under the nose and never proceeded with the cowl flap idea. After 12 years and a move, I don't even have a hint where I might have stored them. Not certain they are even available any more. Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Thomas Mann Sent: Friday, August 21, 2009 9:02 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Cowl Flap 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! __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_0049_01CA2241.2F5E2C80 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 Actually, Thomas back about = 12 years ago I purchased some of those VW  ‘bellows” type = expansion servos that worked based on the temperature they sense.  I had = planned to use them similar to what you suggested – but, got my cooling = problem under control by moving a RX-7 oil cooler under the nose and never = proceeded with the cowl flap idea.  After 12 years and a move, I don’t = even have a hint where I might have stored them.

 

Not certain they are even available = any more.

 

Ed

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Thomas Mann
Sent: Friday, August 21, = 2009 9:02 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Cowl Flap

 

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.

 <= /o:p>

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.

 <= /o:p>

T = Mann

 <= /o:p>

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

 

 

 <= /o:p>

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!

 



__________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com

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