Return-Path: Sender: (Marvin Kaye) To: lml Date: Wed, 30 Jul 2003 00:48:22 -0400 Message-ID: X-Original-Return-Path: Received: from mailnw.centurytel.net ([209.206.160.237] verified) by logan.com (CommuniGate Pro SMTP 4.1) with ESMTP id 2506868 for lml@lancaironline.net; Tue, 29 Jul 2003 23:24:02 -0400 Received: from downstairs (pppoe-64-91-100-57.rb.gh.centurytel.net [64.91.100.57]) by mailnw.centurytel.net (8.12.9/8.12.9) with SMTP id h6U3O1DP008533 for ; Tue, 29 Jul 2003 20:24:01 -0700 (PDT) From: "Robert Smiley" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] HStab Incidence Angle X-Original-Date: Tue, 29 Jul 2003 20:24:02 -0700 X-Original-Message-ID: <000201c3564a$06398f30$927dfea9@downstairs> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0003_01C3560F.59DAB730" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.6604 (9.0.2911.0) Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2727.1300 This is a multi-part message in MIME format. ------=_NextPart_000_0003_01C3560F.59DAB730 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit On the 360 I did not have that problem, however, I have the following advice to offer. The horizontal alignment of the stab is also very important. On the 360 the instructions suggest the stab be parallel to the longerons on the fuselage. This neglects any possible alignment error of the wings assembly with respect to the fuselage which may creep into any construction. Therefore when aligning the H stab; make sure it is parallel and in the same horizontal plane as the wing, not the fuselage. This can be done by standing aft the airframe and sighting over the Hstab forward corners and align the sight line from your eye, over the forward corner of the Hstab and the top of the wing. Move your eye over to the other side holding your head in the same position and get the same sight picture. Adjust the stab accordingly until achieved. measure forward to the wing on both sides for parallel axis in plan view. That is an aligned Hstab. You may be able to move your stab forward or aft a small amount in the saddle and achieve some incidence correction. If you must build up the walls then make sure you build up the saddle to the same structural integrety as the fuselage saddle below it. This can be acomplished with wider bid tapes of sufficient width to transfer the expected loads to the existing fuselage. Contact the factory for the recommended overlap width. Bob Smiley N94RJ ------=_NextPart_000_0003_01C3560F.59DAB730 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
On the=20 360 I did not have that problem, however, I have the following advice to = offer.  The horizontal alignment of the stab is also very=20 important. On the 360 the instructions suggest the stab be parallel = to the=20 longerons on the fuselage.  This neglects any possible alignment = error of=20 the wings assembly with respect to the fuselage which may creep into any = construction.  Therefore when aligning the H stab; make sure it is = parallel=20 and in the same horizontal plane as the wing, not the = fuselage. This can be=20 done by standing aft the airframe and sighting over the Hstab forward = corners=20 and align the sight line from your eye, over the forward corner of the = Hstab and=20 the top of the wing. Move your eye over to the other side holding your = head in=20 the same position  and get the same sight picture. Adjust the stab=20 accordingly until achieved. measure forward to the wing on both sides = for=20 parallel axis in plan view. That is an aligned = Hstab.
 
You may be able to move your stab forward or aft a = small amount=20 in the saddle and achieve some incidence correction.  If you = must=20 build up the walls then make sure you build up the saddle to the same = structural=20 integrety as the fuselage saddle below it.  This can be acomplished = with=20 wider bid tapes of sufficient width to transfer the expected loads to = the=20 existing fuselage.  Contact the factory for the recommended overlap = width.
 
Bob Smiley
N94RJ
 
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