X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtp105.sbc.mail.re2.yahoo.com ([68.142.229.100] verified) by logan.com (CommuniGate Pro SMTP 5.1.9) with SMTP id 2080915 for flyrotary@lancaironline.net; Sat, 02 Jun 2007 20:08:39 -0400 Received-SPF: none receiver=logan.com; client-ip=68.142.229.100; envelope-from=downing.j@sbcglobal.net Received: (qmail 49086 invoked from network); 3 Jun 2007 00:07:53 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=sbcglobal.net; h=Received:X-YMail-OSG:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=oYb6ZN4DaoUzSCJNWEM3SBMhHvfDTf/NnQ8r0j1hKUceXM8lqCX7roK53AOw5+8Lg9DQ9fLTBBjs5oSMDbNN2imSWLQtPeYa8CkAKahI1kLrZkD0x2nJxjviYz5CK5YF9M67cyabezOyMsBCjghuUY+r3zhefWz1ERhmvuhMC2k= ; Received: from unknown (HELO mom) (downing.j@sbcglobal.net@75.41.27.213 with login) by smtp105.sbc.mail.re2.yahoo.com with SMTP; 3 Jun 2007 00:07:53 -0000 X-YMail-OSG: 80sUZogVM1nxr_vM.6G.H.LzLPqeiO0b48evcsidbcz32IxsVFU.xckL.Eu.m1AA6T5QjiBV4czT83lBqObzqFXxd6stY1DbILKW4OTFcT.HAqKulqgxlUrb34MrN03GdE_9aen_prG3F2U5szKE9bRx Message-ID: <000d01c7a573$7ec4d780$4001a8c0@gateway.2wire.net> From: "John Downing" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: diffusers Date: Sat, 2 Jun 2007 20:09:46 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000A_01C7A551.F72CF080" 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 This is a multi-part message in MIME format. ------=_NextPart_000_000A_01C7A551.F72CF080 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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_000A_01C7A551.F72CF080 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
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 = acetone=20 and lay in the glass.  The 1.4 oz. glass is what I used to replace = the=20 ceconite on the plywood wing panes, which is the norm for the = Ballanca. =20 This glass is easier to use because it takes very little epoxy to wet = out and it=20 disappears in the epoxy as it cures and you can squeegee on two light = coatings=20 of epoxy within 2 to 4 hours apart to fill the weave if you like.  = If you=20 are having a problem with the epoxy gumming up your sandpaper, put 1 cup = of=20 ammonia in 4 quarts of warm water and put on with a sponge for ten or = fifteen=20 minutes and you can sand away with very pickup which can be removed = easily with=20 an old hacksaw blade.  JohnD
----- Original Message -----
From:=20 Ed=20 Anderson
Sent: Saturday, June 02, 2007 = 9:04=20 AM
Subject: [FlyRotary] Re: = diffusers

I understand, John.
 
My sentiments exactly - the main reason I = built a metal=20 airplane was so I could avoid fiberglass work - but after a number of = years of=20 making fiberglass things, its gotten to where I can tolerate (but not = like)=20 it.    I made the mistake of using a low density foam = to shape=20 my last duct (pinched duct) and it has started to develop cracks which = of=20 course does not help airflow.  So will have to byte the bullet = and build=20 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=20 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 those=20 diffusers for sale.  It took my son and = I, three hours to get=20 the glass on.  We finally tried wrapping a one inch wide = band of=20 glass around the narrow part of the neck to keep it tight to the = mold. =20 My glass work is marginal at best and I'm in the competition with = Rusty for=20 the most ugly cowling award.  Next winter I'll have ample = opportunity=20 to clean things up some, now flying is the priority. =20 JohnD 
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