Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 393880 for flyrotary@lancaironline.net; Sun, 05 Sep 2004 09:43:59 -0400 Received-SPF: none receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from EDWARD (cpe-069-132-183-211.carolina.rr.com [69.132.183.211]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i85DhOiB015778 for ; Sun, 5 Sep 2004 09:43:26 -0400 (EDT) Message-ID: <004b01c4934e$54048110$2402a8c0@EDWARD> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Doin' the duct Date: Sun, 5 Sep 2004 09:43:29 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0048_01C4932C.CCC0D490" 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_0048_01C4932C.CCC0D490 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageGreat Idea, Bill I just might copy it on my next? duct modification Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message -----=20 From: William=20 To: Rotary motors in aircraft=20 Sent: Sunday, September 05, 2004 9:29 AM Subject: [FlyRotary] Re: Doin' the duct Tommy, Here are a couple of pictures showing how I did the ducts. There is a = layup attached to the lower cowl that was formed on the duct, with a = 1/8" spacing, to allow a rubber strip to be put in for sealing/abrasion = resistance. Duct sits down in the lip, and is a relatively smooth transition from = the cowl lip to the duct lip. Bill Schertz KIS Cruiser # 4045 ----- Original Message -----=20 From: Tommy James=20 To: Rotary motors in aircraft=20 Sent: Saturday, September 04, 2004 9:56 PM Subject: [FlyRotary] Re: Doin' the duct Thanks, Ed! TJ -------------------------------------------------------------------------= --- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Ed Anderson Sent: Saturday, September 04, 2004 8:12 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Doin' the duct My 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) -------------------------------------------------------------------------= ----- >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_0048_01C4932C.CCC0D490 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Great Idea, Bill
 
    I just might copy it = on my next?=20 duct modification
 
Ed
 
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message -----
From:=20 William=20
Sent: Sunday, September 05, = 2004 9:29=20 AM
Subject: [FlyRotary] Re: Doin' = the=20 duct

Tommy,
Here are a couple of pictures showing = how I did=20 the ducts. There is a layup attached to the lower cowl that was formed = on the=20 duct, with a 1/8" spacing, to allow a rubber strip to be put in for=20 sealing/abrasion resistance.
 
Duct sits down in the lip, and is a = relatively=20 smooth transition from the cowl lip to the duct lip.
 
Bill Schertz
KIS Cruiser # 4045
----- Original Message -----
From:=20 Tommy=20 James
To: Rotary motors in = aircraft=20
Sent: Saturday, September 04, = 2004 9:56=20 PM
Subject: [FlyRotary] Re: = Doin' the=20 duct

Thanks,=20 Ed!

TJ

 

From:=20 Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Ed = Anderson
Sent: Saturday, September 04, = 2004 8:12=20 PM
To: Rotary = motors in=20 aircraft
Subject: = [FlyRotary] Re: Doin' the duct

 

My ducts are on the = inside of=20 the cowl inlet and yes there is a lip formed by the foam weather = stripping=20 which I would rather not have.  On my Latest ducts (yet to fly) = I have=20 eliminated the foam, so we will see if that works.  But, with = the foam=20 strip I have flown over 225 hours with plenty of cooling.  So = while I=20 do agree they undoubtedly distrube the airflow, apparently not = enough to=20 interfere in any serious way with my = cooling.

 

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 8:33 PM

Subject:=20 [FlyRotary] Re: Doin' the duct

 

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

 

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

 

Ed

 

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

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

From: Tommy James=20

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

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

Regards,

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

 

>>  Homepage: =20 http://www.flyrotary.com/
>>  Archive:  =20 = http://lancaironline.net/lists/flyrotary/List.html
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