Return-Path: Sender: (Marvin Kaye) To: lml Date: Sat, 16 Aug 2003 00:32:39 -0400 Message-ID: X-Original-Return-Path: Received: from ms-smtp-01.texas.rr.com ([24.93.36.229] verified) by logan.com (CommuniGate Pro SMTP 4.1.1) with ESMTP id 2530020 for lml@lancaironline.net; Fri, 15 Aug 2003 23:48:48 -0400 Received: from oemcomputer (cpe-67-10-123-165.gt.rr.com [67.10.123.165]) by ms-smtp-01.texas.rr.com (8.12.5/8.12.2) with SMTP id h7G3mhxI023401 for ; Fri, 15 Aug 2003 22:48:44 -0500 (CDT) X-Original-Message-ID: <013c01c363b8$5db9dd20$a57b0a43@gt.rr.com> From: "Greg Nelson" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] LNC2 Wing washout problem X-Original-Date: Fri, 15 Aug 2003 22:36:38 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0139_01C3637D.B0FF77A0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0139_01C3637D.B0FF77A0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Mario: My next thought on your wing trailing edge droop is that you = have an accumulation of material (probably dripped epoxy) on either the = leading edge of your wing spar or else on the trailing edge of the stub = wing spar. This would prevent those two pieces from aligning properly = by laying flat against each other when they are bolted together.=20 I had this problem when constructing and it took me a full week to find = and correct it. =20 Also, I have previously seen this problem discussed in this LML forum. = I believe the suggested solution was that alignment could be achieved = with the application of micro slurry to the aft stub wing spar and a = release agent such as plastic sheeting being applied to the opposite = face so that adhesion could not occur between the two surfaces. Then, = without letting the epoxy harden, by attaching the aft spar snugly = first, before bolting the wing spars to each other snugly, the alignment = can be accurately made with no gap at all between the two surfaces. The = trick is to not let the epoxy harden on you before bolting everything = snugly; quite difficult in the summer heat--and costing you an immense = loss of time to clean up and start over if the epoxy prematurely = hardens. Greg Nelson ------=_NextPart_000_0139_01C3637D.B0FF77A0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Mario:  My next thought on your = wing trailing=20 edge droop is that you have an accumulation of material (probably = dripped epoxy)=20 on either the leading edge of your wing spar or else on the trailing = edge of the=20 stub wing spar.  This would prevent those two pieces from = aligning=20 properly by laying flat against each other when they are bolted=20 together. 
 
I had this problem when constructing = and it took me=20 a full week to find and correct it. 
 
Also, I have previously seen this = problem discussed=20 in this LML forum.  I believe the suggested solution was that = alignment=20 could be achieved with the application of micro slurry to the aft stub = wing spar=20 and a release agent such as plastic sheeting being applied to the = opposite face=20 so that adhesion could not occur between the two surfaces. =20 Then, without letting the epoxy harden, by attaching the aft spar = snugly=20 first, before bolting the wing spars to each other snugly, the alignment = can be=20 accurately made with no gap at all between the two surfaces.  The = trick is=20 to not let the epoxy harden on you before bolting everything snugly; = quite=20 difficult in the summer heat--and costing you an immense loss of time to = clean=20 up and start over if the epoxy prematurely=20 hardens.       Greg Nelson
 
 
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