Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Mon, 28 Mar 2005 13:39:57 -0500 Message-ID: X-Original-Return-Path: Received: from imo-d21.mx.aol.com ([205.188.144.207] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 827543 for lml@lancaironline.net; Mon, 28 Mar 2005 13:35:28 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.188.144.207; envelope-from=MikeEasley@aol.com Received: from MikeEasley@aol.com by imo-d21.mx.aol.com (mail_out_v37_r5.33.) id q.c.41ca1d61 (4320) for ; Mon, 28 Mar 2005 13:34:37 -0500 (EST) From: MikeEasley@aol.com X-Original-Message-ID: X-Original-Date: Mon, 28 Mar 2005 13:34:37 EST Subject: Re: [LML] Re: Need IVP Horizontal Stab advice X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1112034877" X-Mailer: 9.0 Security Edition for Windows sub 5000 -------------------------------1112034877 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit For what it's worth.... I used the incidence template on the wings and set the incidence of the horizontal stab to the wings, ignoring the fuselage, just what Tom said. I went through the "should I?" thing about changing the incidence, and the bottom line from Mark Mahnke was it doesn't change the flying characteristics if you go a couple tenths more or less. So I did mine to the spec. I leveled my horizontal stab by visually checking against the wings, from the front and rear (critical eyeball method). I also used a laser level. Getting it perpendicular to the centerline of the fuselage is an easy task with plumb bobs and a couple lines on the floor. I'm not sure how much flex a IV fuselage has, but the ES has plenty without the top on. On my plane, you could easily realign the horizontal stab to the wings with a few new cleco holes before bonding the top on. Resting a 25' tape measure on my horiz stab deflected it almost 1/2". Mine was straight to the wings and drifted with time, not sure why. I was very careful to get the vertical exactly perpendicular to the horizontal, that would be impossible to fix after bonding. So when I bonded on the top, I just placed new clecos that would keep the tail straight. So you could mount the horizontal without the wings, if you think you could make a small correction when you bond the top on. I'd rather have the wings on for the bonding myself. Definitely have the wings on for the top fuselage bonding, for a last minute check. Mike Easley -------------------------------1112034877 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

For what it's worth....

I used the incidence template on the wings and set the incidence of the= =20 horizontal stab to the wings, ignoring the fuselage, just what Tom said.&nbs= p; I=20 went through the "should I?" thing about changing the incidence, and the bot= tom=20 line from Mark Mahnke was it doesn't change the flying characteristics if yo= u go=20 a couple tenths more or less. So I did mine to the spec.

I leveled my horizontal stab by visually checking against the wings, fr= om=20 the front and rear (critical eyeball method). I also used a laser=20 level. Getting it perpendicular to the centerline of the fuselage is a= n=20 easy task with plumb bobs and a couple lines on the floor.

I'm not sure how much flex a IV fuselage has, but the ES has plenty wit= hout=20 the top on. On my plane, you could easily realign the horizontal stab=20= to=20 the wings with a few new cleco holes before bonding the top on. Restin= g a=20 25' tape measure on my horiz stab deflected it almost 1/2".

Mine was straight to the wings and drifted with time, not sure why.&nbs= p; I=20 was very careful to get the vertical exactly perpendicular to the horizontal= ,=20 that would be impossible to fix after bonding. So when I bonded on the= =20 top, I just placed new clecos that would keep the tail straight.

So you could mount the horizontal without the wings, if you think you c= ould=20 make a small correction when you bond the top on. I'd rather have the=20 wings on for the bonding myself. Definitely have the wings on for the=20= top=20 fuselage bonding, for a last minute check.

Mike Easley

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