Return-Path: Received: from [24.25.9.103] (HELO ms-smtp-04-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2b3) with ESMTP id 84038 for flyrotary@lancaironline.net; Sat, 22 May 2004 09:51:37 -0400 Received: from EDWARD (clt25-78-058.carolina.rr.com [24.25.78.58]) by ms-smtp-04-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i4MDpXVw015002 for ; Sat, 22 May 2004 09:51:34 -0400 (EDT) Message-ID: <000a01c44003$e7329d30$2402a8c0@EDWARD> From: "Ed Anderson" To: "Rotary motors in aircraft" Subject: Fiberglass Help! Date: Sat, 22 May 2004 09:51:37 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0007_01C43FE2.5FD722F0" 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_0007_01C43FE2.5FD722F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ok, you fiberglass types. I need some guidance. I can (and have) = slapped resin on glass cloth and obtained a functional (if heavy) item. = However, I am about to start work on my new radiator ducts and I would = like to do better. My ducts will be approx. 4"x4" at the inlet and = approx. 9"x10" at the core. There might be as much as 1 psi pressure on = the walls (if I should ever be so lucky to go that fast).=20 There a some semi compound curves at the corners of the duct as it = slopes inward from the top and bottom from the core to the inlet. =20 I need your recommendation about the weight and weave of the cloth. I = have previously used the cloth tape as it was easy to manage, but it = required several layers and it is a bit heavy. Like I said functional = but not pretty nor light. I would like your guidance on how best to apply the sheet to the mold. = In the past, I basically wrap the foam mold in duct tape and the lay = resin on it followed by raps of the cloth tape and more resine. I am = told that using sheet rather than the tape and first laying it out on = aluminum foil to wet it and then cut it in sizes say to fit a side of = the 4 side foam mold with a bit for overlap with the adjacent sides was = one way to go. Any suggestions would be appreciated. Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ------=_NextPart_000_0007_01C43FE2.5FD722F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Ok, you fiberglass types.  I need = some=20 guidance. I can (and have) slapped resin on glass cloth = and obtained a=20 functional (if heavy) item.  However, I am about to start work on = my new=20 radiator ducts and I would like to do better.  My ducts will = be=20 approx. 4"x4" at the inlet and approx. 9"x10" at the core.  There = might be=20 as much as 1 psi pressure on the walls (if I should ever be so lucky to = go that=20 fast).
 
There a some semi compound curves at = the corners of=20 the duct as it slopes inward from the top and bottom from the core to = the=20 inlet. 
 
I need your recommendation about the = weight and=20 weave of the cloth.  I have previously used the cloth tape as it = was easy=20 to manage, but it required several layers and it is a bit heavy.  = Like I=20 said functional but not pretty nor light.
 
I would like your guidance on how best = to apply the=20 sheet to the mold. In the past, I basically wrap the foam mold in = duct tape=20 and the lay resin on it followed by raps of the cloth tape and more=20 resine.  I am told that using sheet rather than the tape and first = laying=20 it out on aluminum foil to wet it and then cut it in sizes say to fit a = side of=20 the 4 side foam mold with a bit for overlap with the adjacent sides was = one way=20 to go.
 
Any suggestions would be = appreciated.
 
Ed
 
 
Ed Anderson
RV-6A N494BW Rotary=20 Powered
Matthews, NC
------=_NextPart_000_0007_01C43FE2.5FD722F0--