Return-Path: Received: from pop3.olsusa.com ([63.150.212.2] verified) by logan.com (CommuniGate Pro SMTP 3.5.8) with ESMTP id 1153272 for rob@logan.com; Tue, 02 Apr 2002 08:17:43 -0500 Received: from ns3.elp.rr.com ([24.92.98.7]) by pop3.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-71866U8000L800S0V35) with ESMTP id com for ; Tue, 2 Apr 2002 05:16:39 -0500 Received: from oemcomputer (cpe-66-25-241-84.gt.rr.com [66.25.241.84]) by ns3.elp.rr.com (8.11.4/8.11.4) with SMTP id g32AKEx23091 for ; Tue, 2 Apr 2002 03:20:15 -0700 (MST) Message-ID: <000701c1da40$0d7de0c0$54f11942@gt.rr.com> From: "Greg Nelson" To: "Lancair enthusiasts" Subject: Trim tab counter balance Date: Tue, 2 Apr 2002 04:15:17 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Mailing-List: lancair.list@olsusa.com Reply-To: lancair.list@olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> This question for the aerodynamicists out there (both real and amateur): How come trim tabs don't have to be counter balanced? Seems that they are subject to flutter too as are all foil surfaces. I suspect that trim tabs, being smaller, will flutter at a different frequency (or speed of flight) than will a larger flying surface such as a wing. Still, it would seem that a smaller surface flutter would induce flutter or damage in a larger wing -or, do the smaller surfaces usually flutter at higher airspeeds than do the larger wings to which they are attached? Greg Nelson >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://members.olsusa.com/mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please remember that purchases from the Builders' Bookstore assist with the management of the LML. Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>