X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 07 Apr 2008 00:13:36 -0400 Message-ID: X-Original-Return-Path: Received: from mta31.charter.net ([216.33.127.82] verified) by logan.com (CommuniGate Pro SMTP 5.2.1) with ESMTP id 2835133 for lml@lancaironline.net; Sun, 06 Apr 2008 23:30:18 -0400 Received-SPF: pass receiver=logan.com; client-ip=216.33.127.82; envelope-from=GAMarr@Charter.Net Received: from aarprv04.charter.net ([10.20.200.74]) by mta31.charter.net (InterMail vM.7.08.03.00 201-2186-126-20070710) with ESMTP id <20080407032933.EQJF2641.mta31.charter.net@aarprv04.charter.net> for ; Sun, 6 Apr 2008 23:29:33 -0400 Received: from DB77R351 ([24.178.5.47]) by aarprv04.charter.net with ESMTP id <20080407032933.MAYS17353.aarprv04.charter.net@DB77R351> for ; Sun, 6 Apr 2008 23:29:33 -0400 From: "Giffen Marr" X-Original-To: Subject: Horizontal Stabilizer Incidence Angle for IV-P X-Original-Date: Sun, 6 Apr 2008 22:25:28 -0500 X-Original-Message-ID: <022601c8985f$0a6bc850$6701a8c0@DB77R351> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0227_01C89835.2195C050" X-Mailer: Microsoft Office Outlook 11 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 Thread-Index: AciYXqMQOgsdM+HFRZWfz/Z9HxLKDg== X-Chzlrs: 0 This is a multi-part message in MIME format. ------=_NextPart_000_0227_01C89835.2195C050 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I am in the process of installing the Horizontal Stabilizer. I have used a water level to level the Fuselage, using the leveling marks molded into the structure. When I place the HS in the preinstalled fixture for the HS, I find that I have almost a -1.4 degrees nose down. When I adjust the HS to reflect the -0.6 degrees, the leading edge of the HS is about 3/16 above the fixture. My kit, 386, is a fast build kit, so the fixture was installed at the factory. Is it possible that the fixture was installed slightly off the manual specification??? I have reviewed the builder's manual and it calls for -0.6 degrees, nose down incidence. I have noted in some in-flight pictures that in many cases the elevator is slightly down, which in my mind means either the aircraft is at an aft CG or the HS has too much nose down incidence. Has anyone noted either of these problems??? Would it be prudent to decrease the nose down incidence, and if so, how much??? Giff Marr LIV-P/Mistral 65% ------=_NextPart_000_0227_01C89835.2195C050 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I am in the process of installing the Horizontal = Stabilizer. I have used a water level to level the Fuselage, using the leveling = marks molded into the structure.

When I place the HS in the preinstalled fixture for = the HS, I find that I have almost a -1.4 degrees nose down. When I adjust the HS = to reflect the -0.6 degrees, the leading edge of the HS is about 3/16 above the = fixture. My kit, 386, is a fast build kit, so the fixture was installed at the = factory. Is it possible that the fixture was installed slightly off the manual specification???

I have reviewed the builder’s manual and it = calls for -0.6 degrees, nose down incidence. I have noted in some in-flight = pictures that in many cases the elevator is slightly down, which in my mind means = either the aircraft is at an aft CG or the HS has too much nose down incidence. Has = anyone noted either of these problems???

Would it be prudent to decrease the nose down = incidence, and if so, how much???

Giff Marr

LIV-P/Mistral 65%

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