X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 19 Jul 2005 14:52:03 -0400 Message-ID: X-Original-Return-Path: Received: from HQEMGATE03.nvidia.com ([216.228.112.143] verified) by logan.com (CommuniGate Pro SMTP 4.3.6) with ESMTP id 180453 for lml@lancaironline.net; Tue, 19 Jul 2005 12:33:58 -0400 Received-SPF: none receiver=logan.com; client-ip=216.228.112.143; envelope-from=colyncase@earthlink.net Received: from hqemfe03.nvidia.com (Not Verified[172.16.227.123]) by HQEMGATE03.nvidia.com id ; Tue, 19 Jul 2005 09:33:10 -0700 Received: from ccaselt ([172.16.228.84]) by hqemfe03.nvidia.com with Microsoft SMTPSVC(6.0.3790.1830); Tue, 19 Jul 2005 09:33:10 -0700 X-Original-Message-ID: <00d501c58c7f$8ebe2b50$ddc7e5ce@nvidia.com> From: "colyncase on earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] IV-P Rudder C'Balance Weight X-Original-Date: Tue, 19 Jul 2005 09:33:11 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00D2_01C58C44.E11E47D0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Original-Return-Path: colyncase@earthlink.net X-OriginalArrivalTime: 19 Jul 2005 16:33:10.0612 (UTC) FILETIME=[8D1C8940:01C58C7F] This is a multi-part message in MIME format. ------=_NextPart_000_00D2_01C58C44.E11E47D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Don't you also need to look at CG? ----- Original Message -----=20 From: Craig Berland=20 To: Lancair Mailing List=20 Sent: Tuesday, July 19, 2005 9:29 AM Subject: [LML] IV-P Rudder C'Balance Weight The rudder lead counter balance weight on the IV-P weighs in at 9.7 = lbs. The manual says it is there to help prevent flutter. I just = finished modeling the rudder weight in SolidWorks using tungsten and it = will save less than one pound. Hardly worth the cost and effort. Aerodynamic experts....Why is a c'balance weight effective on a = vertical surface (rudder)? Craig Berland ------=_NextPart_000_00D2_01C58C44.E11E47D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Don't you also need to look at = CG?
----- Original Message -----
From:=20 Craig=20 Berland
Sent: Tuesday, July 19, 2005 = 9:29=20 AM
Subject: [LML] IV-P Rudder = C'Balance=20 Weight

 
The rudder = lead counter=20 balance weight on the IV-P weighs in at 9.7 lbs.  The manual says = it is=20 there to help prevent flutter.  I just finished modeling the = rudder=20 weight in SolidWorks using tungsten and it will save less than = one pound.=20 Hardly worth the cost and effort.
 
Aerodynamic experts....Why is a = c'balance weight=20 effective on a vertical surface (rudder)?
Craig=20 Berland
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