Return-Path: Received: from [24.25.9.101] (HELO ms-smtp-02-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 393441 for flyrotary@lancaironline.net; Sat, 04 Sep 2004 21:12:20 -0400 Received-SPF: none receiver=logan.com; client-ip=24.25.9.101; envelope-from=eanderson@carolina.rr.com Received: from EDWARD (cpe-069-132-183-211.carolina.rr.com [69.132.183.211]) by ms-smtp-02-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i851BnNs025068 for ; Sat, 4 Sep 2004 21:11:50 -0400 (EDT) Message-ID: <000801c492e5$548c6670$2402a8c0@EDWARD> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Doin' the duct Date: Sat, 4 Sep 2004 21:11:52 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0005_01C492C3.CCF9FDB0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0005_01C492C3.CCF9FDB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageMy ducts are on the inside of the cowl inlet and yes there is a = lip formed by the foam weather stripping which I would rather not have. = On my Latest ducts (yet to fly) I have eliminated the foam, so we will = see if that works. But, with the foam strip I have flown over 225 hours = with plenty of cooling. So while I do agree they undoubtedly distrube = the airflow, apparently not enough to interfere in any serious way with = my cooling. Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message -----=20 From: Tommy James=20 To: Rotary motors in aircraft=20 Sent: Saturday, September 04, 2004 8:33 PM Subject: [FlyRotary] Re: Doin' the duct Sorry Ed, the last time I looked at your ducts there was a big donut = in the opening..:0). Is there a turbulence causing lip with the duct, = foam separator and the cowl? Does the duct fit around the outside of = cowl inlet? TJ -------------------------------------------------------------------------= ----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Ed Anderson Sent: Saturday, September 04, 2004 7:10 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Doin' the duct Tommy, I basically bring my ducts out to the inlet opening and use a = bit of 1/8" thick foam weather-strip insulation to prevent contact = between duct and inlet part of cowling. There is very little vibration = to content with unlike a Lycoming which would play havoc with such a set = up. Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message -----=20 From: Tommy James=20 To: Rotary motors in aircraft=20 Sent: Saturday, September 04, 2004 6:10 PM Subject: [FlyRotary] Doin' the duct Hi Guys.=20 I need understanding on how to mate the radiator ducts with the cowl = opening. I can see how to mount the rads to motor mount and redrive = back plate. Follow on in the footsteps of master glass scuptors like = Tracy. Ed and RD with foam, electrical tape and poprivets.=20 But I can't 'see' the junction of duct and cowl.. Thanks for any = ideas. The duct tape is a little cheezie..:-) Regards, Tommy James<>< (designing second edition cooling system) ------=_NextPart_000_0005_01C492C3.CCF9FDB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
My ducts are on the inside of the cowl = inlet and=20 yes there is a lip formed by the foam weather stripping which I would = rather not=20 have.  On my Latest ducts (yet to fly) I have eliminated the foam, = so we=20 will see if that works.  But, with the foam strip I have flown over = 225=20 hours with plenty of cooling.  So while I do agree they undoubtedly = distrube the airflow, apparently not enough to interfere in any serious = way with=20 my cooling.
 
Ed
 
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message -----
From:=20 Tommy=20 James
Sent: Saturday, September 04, = 2004 8:33=20 PM
Subject: [FlyRotary] Re: Doin' = the=20 duct

Sorry Ed, = the last=20 time I looked at your ducts there was a big donut in the=20 opening..:0).   Is there a turbulence causing lip with the = duct,=20 foam separator and the cowl?  Does the duct fit around the = outside of=20 cowl inlet?

TJ

 

From: Rotary=20 motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed = Anderson
Sent: Saturday, September 04, = 2004 7:10=20 PM
To: Rotary = motors in=20 aircraft
Subject: = [FlyRotary]=20 Re: Doin' the duct

 

Tommy, I basically bring = my ducts=20 out to the inlet opening and use a bit of 1/8" thick foam = weather-strip=20 insulation to prevent contact between duct and inlet part of = cowling. =20 There is very little vibration to content with unlike a Lycoming which = would=20 play havoc with such a set up.

 

Ed

 

Ed Anderson
RV-6A N494BW Rotary=20 Powered
Matthews, NC

----- Original Message = -----=20

From: Tommy=20 James

To: Rotary motors in = aircraft=20

Sent:=20 Saturday, September 04, 2004 6:10 PM

Subject:=20 [FlyRotary] Doin' the duct

 

Hi Guys.=20

I need=20 understanding on how to mate the radiator ducts with the cowl = opening. =20 I can see how to mount the rads to motor mount and redrive back = plate. =20 Follow on in the footsteps of master glass scuptors like Tracy. Ed = and RD=20 with foam, electrical tape and poprivets.

But I = can=92t =91see=92=20 the junction of duct and cowl..  Thanks for any ideas.  = The duct=20 tape is a little cheezie..:-)

Regards,

Tommy=20 James<>< (designing second edition cooling=20 system)

 

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