Return-Path: Sender: (Marvin Kaye) To: lml Date: Sat, 18 Jan 2003 13:00:36 -0500 Message-ID: X-Original-Return-Path: Received: from mta6.snfc21.pbi.net ([206.13.28.240] verified) by logan.com (CommuniGate Pro SMTP 4.0.5) with ESMTP id 1992017 for lml@lancaironline.net; Sat, 18 Jan 2003 11:34:25 -0500 Received: from pacbell.net ([216.102.197.123]) by mta6.snfc21.pbi.net (iPlanet Messaging Server 5.1 HotFix 1.6 (built Oct 18 2002)) with ESMTP id <0H8X003JM4PCW9@mta6.snfc21.pbi.net> for lml@lancaironline.net; Sat, 18 Jan 2003 08:34:24 -0800 (PST) X-Original-Date: Sat, 18 Jan 2003 08:34:23 -0800 From: dave morss Subject: tail flutter X-Original-To: Lancair Mailing List Reply-to: morss@pacbell.net X-Original-Message-id: <3E29820F.8040600@pacbell.net> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii; format=flowed Content-transfer-encoding: 7BIT X-Accept-Language: en-us, en User-Agent: Mozilla/5.0 (Macintosh; U; PPC; en-US; rv:1.0.2) Gecko/20021120 Netscape/7.01 References: There were two rudders that fluttered on lancairs that I saw. One at merced during a high speed pass and one at santa paula testing for the osh 500. I had the first large tail 320 and the shake test done on my plane revealed a Ed speed tail bending mode that could be fixed by adding plys top and bottom. there was discussion from lancair that there annals didnt show this mode. however this mode was right at cruise speed and since the weight penalty was only 5 lbs I added the plys dave