X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 13 Apr 2006 23:43:47 -0400 Message-ID: X-Original-Return-Path: Received: from [68.98.211.24] (HELO systems3.net) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1068023 for lml@lancaironline.net; Thu, 13 Apr 2006 20:38:15 -0400 Received-SPF: none receiver=logan.com; client-ip=68.98.211.24; envelope-from=cberland@systems3.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C65F5B.9AC6F471" Subject: IV-P Wing Incidence Content-class: urn:content-classes:message X-MimeOLE: Produced By Microsoft Exchange V6.5 X-Original-Date: Thu, 13 Apr 2006 17:37:26 -0700 X-Original-Message-ID: <87C33F695961494D886EB3B6C8A4765106A780@s3server.Systems3.local> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: IV-P Wing Incidence thread-index: AcZBLphH5yh37nkBQ2aC7nPZlXNy3AXnmBFAAaMxhRA= From: "Craig Berland" X-Original-To: "Lancair Mail List" This is a multi-part message in MIME format. ------_=_NextPart_001_01C65F5B.9AC6F471 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I obtained CAD files for the wing and horizontal. I then CNC milled templates for BL 26.25, BL104 and BL171. I leveled the plane and measured my wings using a machine level accurate to .0005" per foot or .002 degree. Here are the results for my IV-P wings which were closed in Redmond.=20 =20 RH @ BL 26.25 =3D -1.750 deg =20 RH @ BL 104 =3D +0.982 deg=20 RH @ BL 171 =3D +1.117 deg =20 LH @ BL 26.25 =3D -2.000 deg LH @ BL 104 =3D +0.578 deg LH @ BL 171 =3D +0.844 deg =20 I am going to rotate the LH wing .26 deg's giving the following results: =20 LH @ BL 26.25 =3D -1.74 deg LH @ BL 104 =3D +.84 deg LH @ BL 171 =3D +1.10 deg =20 I am somewhat concerned about the discrepancy at BL 104 (0.14 deg after rotation) , but not much I can do about it. Also, the washout from BL 26.25 to BL 171 is 2.84 deg vs the 1.94 spec. Note: I believe the accuracy of the numbers is better than .01 deg. =20 Comments? =20 Craig Berland ------_=_NextPart_001_01C65F5B.9AC6F471 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I=20 obtained CAD files for the wing and horizontal. = I then CNC milled = templates for BL 26.25, BL104 and = BL171. I leveled the plane = and measured my=20 wings using a machine level = accurate to=20 .0005" per foot or .002 degree. Here are = the results for my IV-P wings which were closed in=20 Redmond.

RH @ BL 26.25 =3D -1.750 = deg =20

RH @ BL 104 = =3D +0.982 deg=20

RH @ BL 171 = =3D +1.117=20 deg

LH @ BL 26.25 =3D -2.000 = deg

LH @ BL 104 = =3D +0.578 =20 deg

LH @ BL 171 = =3D +0.844 =20 deg

I am going to rotate the LH wing .26 = deg's giving=20 the following results:

LH @ BL 26.25 =3D -1.74 = deg

LH @ BL 104 = =3D +.84=20 deg

LH @ BL 171 = =3D +1.10=20 deg

I am=20 somewhat concerned about the discrepancy at BL 104 (0.14 deg after = rotation) , but not=20 much I can do about it. Also,=20 the washout from BL 26.25 to BL 171 is 2.84 deg vs the 1.94 = spec. =20 Note: I believe the accuracy of the = numbers=20 is better than .01 deg.

Comments?

Craig = Berland

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