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 85427 for flyrotary@lancaironline.net; Sun, 23 May 2004 07:24:58 -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 i4NBOtVw012439 for ; Sun, 23 May 2004 07:24:57 -0400 (EDT) Message-ID: <000b01c440b8$968cb360$2402a8c0@EDWARD> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Fiberglass Help! Date: Sun, 23 May 2004 07:25:01 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0008_01C44097.0F33AA20" 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_0008_01C44097.0F33AA20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ok, I think I've got the idea, but I have another question. I looked = for BID cloth on Aircraft Spruce, but could only find Crowfoot Weave = which they claimed was good for compound curves. Is that the same = thing? Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message -----=20 From: sqpilot@earthlink=20 To: Rotary motors in aircraft=20 Sent: Saturday, May 22, 2004 11:29 PM Subject: [FlyRotary] Re: Fiberglass Help! ----- Original Message -----=20 From: CCI=20 To: Rotary motors in aircraft=20 Sent: Saturday, May 22, 2004 9:14 AM Subject: [FlyRotary] Re: Fiberglass Help! Hi Ed, One easy way that I use is to place the cloth between two = pcs. of plastic sheeting (drop cloths from Home Depot) add the resin to = the cloth, then squegee using a pc. of plastic or body filler squeegees = work good. This way you can see when the glass wets out and you can = squeegee the excess resin off to the side if the sheet to save weight. = Remove one side of the plastic to apply so you don't get it all over = you. It is also easy to cut to size using a Fiskars rotary cutter, just = take a marker and lay out the shape you want, cut it and there it is = with little mess. For ducts, 8 oz. unidirectional cloth should be about = right. Fred=20 Hi, Ed....Fred is right....doing the layups between plastic will = allow you to squeege out unnecessary resin and save weight. As far as = the cloth, bidirectional is nice, but S-glass has a finer weave, is much = stronger and lighter. I have used it almost entirely on my SQ2000. = Paul Conner At 09:51 AM 5/22/2004, you wrote: 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 =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 =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. =20 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. =20 Any suggestions would be appreciated. =20 Ed =20 =20 Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ------=_NextPart_000_0008_01C44097.0F33AA20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Ok, I think I've got the idea, but I = have another=20 question.  I looked for BID cloth on Aircraft Spruce, but could = only find=20 Crowfoot Weave which they claimed was good for compound curves.  Is = that=20 the same thing?
 
Ed
 
Ed Anderson
RV-6A N494BW Rotary=20 Powered
Matthews, NC
----- Original Message -----
From:=20 sqpilot@earthlink
Sent: Saturday, May 22, 2004 = 11:29=20 PM
Subject: [FlyRotary] Re: = Fiberglass=20 Help!

 
----- Original Message -----
From:=20 CCI=20
To: Rotary motors in = aircraft=20
Sent: Saturday, May 22, 2004 = 9:14=20 AM
Subject: [FlyRotary] Re: = Fiberglass=20 Help!

Hi Ed, One easy way that I use is to place the cloth = between=20 two pcs. of plastic sheeting (drop cloths from Home Depot) add the = resin to=20 the cloth, then squegee using a pc. of plastic or body filler = squeegees work=20 good. This way you can see when the glass wets out and you can = squeegee the=20 excess resin off to the side if the sheet to save weight. Remove one = side of=20 the plastic to apply so you don't get it all over you. It is also = easy to=20 cut to size using a Fiskars rotary cutter, just take a marker and = lay out=20 the shape you want, cut it and there it is with little mess. For = ducts, 8=20 oz. unidirectional cloth should be about right. Fred =


Hi, Ed....Fred is right....doing the layups = between=20 plastic will allow you to squeege out unnecessary resin and save=20 weight.  As far as the cloth, bidirectional is nice, but = S-glass has a=20 finer weave, is much stronger and lighter.  I have used it = almost=20 entirely on my SQ2000.  Paul=20 Conner






At 09:51 AM 5/22/2004, you=20 wrote:
Ok, you=20 fiberglass types.  I need some guidance. I can (and have) = slapped=20 resin on glass cloth and obtained a functional (if heavy) = item. =20 However, I am about to start work on my new radiator ducts and I = would=20 like to do better.  My ducts will be approx. 4"x4" at the = inlet and=20 approx. 9"x10" at the core.  There might be as much as 1 psi = pressure=20 on the walls (if I should ever be so lucky to go that fast).=20
 
There a some semi = compound=20 curves at the corners of the duct as it slopes inward from the top = and=20 bottom from the core to the inlet.  =
 
I need your recommendation about the weight = and weave of=20 the cloth.  I have previously used the cloth tape as it was = easy to=20 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=20 tape 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=20 laying it out on aluminum foil to wet it and then cut it in sizes = say to=20 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,=20 NC

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