X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from ms-smtp-03.southeast.rr.com ([24.25.9.102] verified) by logan.com (CommuniGate Pro SMTP 5.1.9) with ESMTP id 2082716 for flyrotary@lancaironline.net; Mon, 04 Jun 2007 04:50:37 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-103-061.carolina.res.rr.com [24.74.103.61]) by ms-smtp-03.southeast.rr.com (8.13.6/8.13.6) with SMTP id l53BfoEF028774 for ; Sun, 3 Jun 2007 07:41:51 -0400 (EDT) Message-ID: <002601c7a5d4$2d857800$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: diffusers Date: Sun, 3 Jun 2007 07:41:51 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0023_01C7A5B2.A63129B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0023_01C7A5B2.A63129B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks for the suggestion, John. See I knew you knew more about = fiberglass than I {:>) Ed ----- Original Message -----=20 From: John Downing=20 To: Rotary motors in aircraft=20 Sent: Saturday, June 02, 2007 8:09 PM Subject: [FlyRotary] Re: diffusers Ed, before you go the route and make new molds, consider a liner of = 1.4 oz glass to line you existing diffusers. You can hit the inside of = the diffusers lightly with the sand blaster, wipe with acetone and lay = in the glass. The 1.4 oz. glass is what I used to replace the ceconite = on the plywood wing panes, which is the norm for the Ballanca. This = glass is easier to use because it takes very little epoxy to wet out and = it disappears in the epoxy as it cures and you can squeegee on two light = coatings of epoxy within 2 to 4 hours apart to fill the weave if you = like. If you are having a problem with the epoxy gumming up your = sandpaper, put 1 cup of ammonia in 4 quarts of warm water and put on = with a sponge for ten or fifteen minutes and you can sand away with very = pickup which can be removed easily with an old hacksaw blade. JohnD ----- Original Message -----=20 From: Ed Anderson=20 To: Rotary motors in aircraft=20 Sent: Saturday, June 02, 2007 9:04 AM Subject: [FlyRotary] Re: diffusers I understand, John. My sentiments exactly - the main reason I built a metal airplane was = so I could avoid fiberglass work - but after a number of years of making = fiberglass things, its gotten to where I can tolerate (but not like) it. = I made the mistake of using a low density foam to shape my last duct = (pinched duct) and it has started to develop cracks which of course does = not help airflow. So will have to byte the bullet and build them once = again with a better foam. Yes, if you want to ever fly, there has to be a line drawn someplace = between "needed" and "Nice" to do. =20 Ed ----- Original Message -----=20 From: John Downing=20 To: Rotary motors in aircraft=20 Sent: Saturday, June 02, 2007 7:58 AM Subject: [FlyRotary] diffusers Ed, no chance here of trying to reproduce those diffusers for = sale. It took my son and I, three hours to get the glass on. We = finally tried wrapping a one inch wide band of glass around the narrow = part of the neck to keep it tight to the mold. My glass work is = marginal at best and I'm in the competition with Rusty for the most ugly = cowling award. Next winter I'll have ample opportunity to clean things = up some, now flying is the priority. JohnD ------=_NextPart_000_0023_01C7A5B2.A63129B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Thanks for the suggestion, John.  See I = knew you knew=20 more about fiberglass than I {:>)
 
Ed
----- Original Message -----
From:=20 John=20 Downing
Sent: Saturday, June 02, 2007 = 8:09=20 PM
Subject: [FlyRotary] Re: = diffusers

Ed, before you go the route and make = new molds,=20 consider a liner of 1.4 oz glass to line you existing diffusers.  = You can=20 hit the inside of the diffusers lightly with the sand blaster, wipe = with=20 acetone and lay in the glass.  The 1.4 oz. glass is what I used = to=20 replace the ceconite on the plywood wing panes, which is the norm for = the=20 Ballanca.  This glass is easier to use because it takes very = little epoxy=20 to wet out and it disappears in the epoxy as it cures and you can = squeegee on=20 two light coatings of epoxy within 2 to 4 hours apart to fill the = weave if you=20 like.  If you are having a problem with the epoxy gumming up your = sandpaper, put 1 cup of ammonia in 4 quarts of warm water and put on = with a=20 sponge for ten or fifteen minutes and you can sand away with very = pickup which=20 can be removed easily with an old hacksaw blade.  = JohnD
----- Original Message -----
From:=20 Ed Anderson
To: Rotary motors in = aircraft=20
Sent: Saturday, June 02, 2007 = 9:04=20 AM
Subject: [FlyRotary] Re:=20 diffusers

I understand, John.
 
My sentiments exactly - the main reason I = built a=20 metal airplane was so I could avoid fiberglass work - but after a = number of=20 years of making fiberglass things, its gotten to where I can = tolerate (but=20 not like) it.    I made the mistake of using a low = density=20 foam to shape my last duct (pinched duct) and it has started to = develop=20 cracks which of course does not help airflow.  So will have to = byte the=20 bullet and build them once again with a better foam.
 
Yes, if you want to ever fly, there has to = be a line=20 drawn someplace between "needed" and "Nice" to do.  =
 
Ed
----- Original Message ----- =
From:=20 John Downing
To: Rotary motors in = aircraft=20
Sent: Saturday, June 02, = 2007 7:58=20 AM
Subject: [FlyRotary] = diffusers

Ed, no chance here of trying to = reproduce=20 those diffusers for sale.  It took my son and=20 I, three hours to get the glass on.  We = finally tried=20 wrapping a one inch wide band of glass around the narrow part of = the neck=20 to keep it tight to the mold.  My glass work is marginal at = best and=20 I'm in the competition with Rusty for the most ugly cowling = award. =20 Next winter I'll have ample opportunity to clean things up some, = now=20 flying is the priority. =20 = JohnD 
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