Return-Path: Sender: (Marvin Kaye) To: lml Date: Thu, 22 Aug 2002 08:19:44 -0400 Message-ID: X-Original-Return-Path: Received: from imo-d04.mx.aol.com ([205.188.157.36] verified) by logan.com (CommuniGate Pro SMTP 4.0b6) with ESMTP id 1702302 for lml@lancaironline.net; Thu, 22 Aug 2002 01:11:56 -0400 Received: from Newlan2dl@aol.com by imo-d04.mx.aol.com (mail_out_v34.9.) id q.51.22c7407e (25914) for ; Thu, 22 Aug 2002 01:11:52 -0400 (EDT) From: Newlan2dl@aol.com X-Original-Message-ID: <51.22c7407e.2a95cc98@aol.com> X-Original-Date: Thu, 22 Aug 2002 01:11:52 EDT Subject: Re: [LML] Re: delaminations of aileron counterweight web X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 7.0 for Windows US sub 10512 Jim Flutter analysis (as done by Martin), uses finite element analysis. The stiffness of the materials, support and the natural harmonics of the system are calculated. And aerodynamics will also affect it. With all those variables, if you're changing something, it would probably be a good idea to have ity analysed. Or, he has a really interesting two day course that you could take and you get to keep the FE software. And you should also consider that the extra fuel outboard will increase the gyradius (mass locaed away from the CG) and make the plane more resistant to recovery from a spin plus, kerosene is about 16% more dense than gasoline, (6.12 lbs/ga vs. 7.13) so while the quantity may be the same, the weight is different. Dan Newland