X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 09 Jan 2007 09:42:53 -0500 Message-ID: X-Original-Return-Path: Received: from vms048pub.verizon.net ([206.46.252.48] verified) by logan.com (CommuniGate Pro SMTP 5.1.4) with ESMTP id 1745674 for lml@lancaironline.net; Tue, 09 Jan 2007 00:11:09 -0500 Received: from jacky0da39824a ([71.97.251.124]) by vms048.mailsrvcs.net (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPA id <0JBL006IX527581G@vms048.mailsrvcs.net> for lml@lancaironline.net; Mon, 08 Jan 2007 23:10:58 -0600 (CST) X-Original-Date: Mon, 08 Jan 2007 21:10:49 -0800 From: "Tom Gourley" Subject: [LML] Re: AHRS X-Original-To: "Lancair Mailing List" Reply-to: "Tom Gourley" X-Original-Message-id: <000901c733ac$87c2cab0$650610ac@jacky0da39824a> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Mailer: Microsoft Outlook Express 6.00.2900.3028 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: Rob, Sounds like you've delved into a lot of details on more than one AHRS. You mentioned the Crossbow 500 uses both GPS and airdata aiding. Crossbow's datasheet states that the 500 operates as an independent device without the need for GPS or airdata aiding. It does state velocity aiding is optional on models "-220" through "-227". The velocity aiding packet shown in the Operators Manual is for this optional feature. Models "-200" through "-207" do not use this feature The Crossbow 510 can also operate standalone or with optional GPS and airdata aiding. Tom Gourley