X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 25 Jun 2007 00:04:30 -0400 Message-ID: X-Original-Return-Path: Received: from vms046pub.verizon.net ([206.46.252.46] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2138135 for lml@lancaironline.net; Sun, 24 Jun 2007 23:13:29 -0400 Received-SPF: pass receiver=logan.com; client-ip=206.46.252.46; envelope-from=tom.gourley@verizon.net Received: from jacky0da39824a ([71.97.244.225]) by vms046.mailsrvcs.net (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPA id <0JK600F128WHUZ11@vms046.mailsrvcs.net> for lml@lancaironline.net; Sun, 24 Jun 2007 22:12:22 -0500 (CDT) X-Original-Date: Sun, 24 Jun 2007 20:12:15 -0700 From: "Tom Gourley" Subject: Re: [LML] Wt & Bal question X-Original-To: "Lancair Mailing List" Reply-to: "Tom Gourley" X-Original-Message-id: <003e01c7b6d6$a3436cb0$650610ac@jacky0da39824a> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 X-Mailer: Microsoft Outlook Express 6.00.2900.3138 Content-type: text/plain; format=flowed; charset=iso-8859-1; reply-type=response Content-transfer-encoding: 7bit X-Priority: 3 X-MSMail-priority: Normal References: > Where does the weight show up? At the FS of the panel, or at the center > of mass of the radio? > > Say you had a 10 inch long, 10 lb radio and it was installed in a panel at > FS 90. Will the weight show up at FS 90 or at FS 85? The installation manuals of some avionics provide specific information on the center of mass for weight and balance calculations; the Garmin GTX327 is a good example. Lacking that information I would assume the weight is located at the center of the radio and use that distance. In your example I would use FS85. Tom Gourley