X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 29 Oct 2008 20:09:41 -0400 Message-ID: X-Original-Return-Path: Received: from www.deskoptional.com ([207.114.199.129] verified) by logan.com (CommuniGate Pro SMTP 5.2.9) with ESMTP id 3244215 for lml@lancaironline.net; Wed, 29 Oct 2008 09:16:52 -0400 Received-SPF: none receiver=logan.com; client-ip=207.114.199.129; envelope-from=marc@verticalpower.com Received: from www.deskoptional.com ([192.168.0.2]) by www.deskoptional.com with Microsoft SMTPSVC(6.0.3790.1830); Wed, 29 Oct 2008 07:16:15 -0600 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Subject: RE: iHUD X-MimeOLE: Produced By Microsoft Exchange V6.5 X-Original-Date: Wed, 29 Oct 2008 07:11:01 -0600 X-Original-Message-ID: In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: iHUD Thread-Index: Ack5x8p9rNLpob30QgSjGfp2zRbDag== References: From: "Marc Ausman" X-Original-To: "John Barrett" <2thman@cablespeed.com>, X-Original-Return-Path: marc@verticalpower.com X-OriginalArrivalTime: 29 Oct 2008 13:16:15.0428 (UTC) FILETIME=[85970840:01C939C8] John, This does NOT provide accurate horizon information. See = http://www.i-hud.com/ The iPhone has accelerometers that do not act = like a gyro. For example, it will show level in a coordinated turn. = Here's an excerpt from the web site: iHUD offers a fantastic way to teach, see, and learn EFIS and partially = AHRS on-the-fly. Important note: A limitation of this basic version of = iHUD is that the horizon depends on the on-board accelerometers only. = This means that the horizon does not display the earth horizon as a = reference of a vehicle in an accelerated attitude. It will display the = acceleration of the vehicle only. Therefore, never ever use this version = of iHUD for in-flight operations to visualize attitude other than pitch = and roll. We are currently studying the possibility to mathematically = model an algorithm to address this situation. Marc Ausman=20 Vertical Power, Inc.=20 317 Commercial St, Suite G-102=20 Albuquerque, NM 87102=20 (505) 715-6172=20 marc@VerticalPower.com=20 http://www.verticalpower.com -----Original Message----- From: John Barrett [mailto:2thman@cablespeed.com]=20 Sent: Tuesday, October 28, 2008 5:44 PM To: lml@lancaironline.net Subject: iHUD Has anyone seen this application for the iPhone 3G? I lurk on the RV = Digest and heard about it there. The 3G has a GPS receiver as well as accelerometers for use as an auto map navigator. Someone devised an application that converts the iPhone to an attitude indicator/DG. The application sells for $5.99. Yep, that's right. Of course you have to = have the phone and I hear it's several hundred bucks.=20 Obviously, it's not approved for use in an airplane, but what if you = carried it just for an additional backup behind your glass panel, your steam = gauges and your portable G496? Anybody used it yet? Does it provide enough = real information to save your bacon in a pinch?=20 Regards, John Barrett, CEO Leading Edge Composites PO Box 428 Port Hadlock, WA 98339 www.carbinge.com =A0=20