Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2b6) with ESMTP id 243087 for flyrotary@lancaironline.net; Sun, 04 Jul 2004 22:16:07 -0400 Received: from EDWARD (clt25-78-058.carolina.rr.com [24.25.78.58]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i652FYiB006080 for ; Sun, 4 Jul 2004 22:15:35 -0400 (EDT) Message-ID: <002701c46235$f7b7e7b0$2402a8c0@EDWARD> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Carbon Fiber Manifold Tube Date: Sun, 4 Jul 2004 22:15:39 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0024_01C46214.7071CA30" 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_0024_01C46214.7071CA30 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Glad to see you'r started. Might be nice to know how even that piece = stands up to heat - I realize you did not use a heat resistant type of = epoxy. But, now is a good time to find out how much effect the heat has = on less than optimum epoxy. Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message -----=20 From: Alex Madsen=20 To: Rotary motors in aircraft=20 Sent: Monday, July 05, 2004 6:36 AM Subject: [FlyRotary] Carbon Fiber Manifold Tube =20 =20 I have finally got around to working on my carbon fiber intake = manifold design. I got some 2" carbon fiber sleeve. Not having any bulk = epoxy on hand I went to the hardware store and got some EnviroTex Lite = Pour-On (the only bulk epoxy they had). Pour-On is sold as a heavy duty = wood finish but it is clear epoxy 2 part epoxy. Unfortunately the stuff = takes a long time to dry. I used 2" foam pipe insulation as a form for = the carbon fiber. The test sample was 1 ply of CF. After it was fully = dry (it took 2 days) I tried to melt out foam pipe insulation with = acetone. However, acetone did not have any effect on the insulation and = I was forced to cut it out with a big knife. While not unexpected the CF = tube was not as rigid as I had hoped. My calculations say that it would = have plenty of strength to withstand a backfire but I think a more rigid = manifold would be ideal. I will try making a sample with 2 layers = today. A second layer will also greatly reduce the likelihood of pin = whole leeks (something I have not tested for yet). Attached are some = pics of the CF tube. =20 I will be sending out pics of my design work later today.=20 =20 Alex Madsen =20 =20 -------------------------------------------------------------------------= ----- >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_0024_01C46214.7071CA30 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Glad to see you'r started.  Might = be nice to=20 know how even that piece stands up to heat - I realize you did not use a = heat=20 resistant type of epoxy.  But, now is a good time to find out how = much=20 effect the heat has on less than optimum epoxy.
 
Ed
 
 
Ed Anderson
RV-6A N494BW Rotary=20 Powered
Matthews, NC
----- Original Message -----
From:=20 Alex=20 Madsen
Sent: Monday, July 05, 2004 = 6:36 AM
Subject: [FlyRotary] Carbon = Fiber=20 Manifold Tube

 

 

I have finally got = around to=20 working on my carbon fiber intake manifold design. I got some 2=94 = carbon fiber=20 sleeve. Not having any bulk epoxy on hand I went to the hardware store = and got=20 some EnviroTex Lite Pour-On (the only bulk epoxy they had). Pour-On is = sold as=20 a heavy duty wood finish but it is clear epoxy 2 part epoxy. = Unfortunately the=20 stuff takes a long time to dry. I used 2=94 foam pipe insulation as a = form for=20 the carbon fiber. The test sample was 1 ply of CF. After it was fully = dry (it=20 took 2 days) I tried to melt out foam pipe insulation with acetone. = However,=20 acetone did not have any effect on the insulation and I was forced to = cut it=20 out with a big knife. While not unexpected the CF tube was not as = rigid as I=20 had hoped. My calculations say that it would have plenty of strength = to=20 withstand a backfire but I think a more rigid manifold would be = ideal.  I will try making a sample = with 2=20 layers today. A second layer will also greatly reduce the likelihood = of pin=20 whole leeks (something I have not tested for yet).   Attached are some pics = of the CF=20 tube.

 

I will be sending out = pics of my=20 design work later today.

 

Alex=20 Madsen

 

 

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