X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [65.173.216.71] (HELO mtasmtp1-clev.cle.ms.philips.com) by logan.com (CommuniGate Pro SMTP 5.0.1) with ESMTP id 834124 for lml@lancaironline.net; Thu, 17 Nov 2005 12:13:24 -0500 Received-SPF: none receiver=logan.com; client-ip=65.173.216.71; envelope-from=Rob.Logan@Philips.com Received: from [149.59.216.12] ([149.59.203.220]) by mtasmtp1-clev.cle.ms.philips.com (Lotus Domino Release 5.0.11) with ESMTP id 2005111712123242:2880 ; Thu, 17 Nov 2005 12:12:32 -0500 Message-ID: <437CB9C5.5090303@Philips.com> Date: Thu, 17 Nov 2005 12:11:33 -0500 From: Rob Logan Reply-To: Rob@Logan.com User-Agent: Mozilla Thunderbird 1.0 (X11/20041207) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Lancair Mailing List Subject: Re: [LML] More IFR/GPS References: In-Reply-To: X-MIMETrack: Itemize by SMTP Server on mtasmtp1-clev/P/SERVER/PHILIPS-CLE(Release 5.0.11 |July 24, 2002) at 11/17/2005 12:12:32 PM, Serialize by Router on mtasmtp1-clev/P/SERVER/PHILIPS-CLE(Release 5.0.11 |July 24, 2002) at 11/17/2005 12:13:24 PM, Serialize complete at 11/17/2005 12:13:24 PM Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=ISO-8859-1; format=flowed The US government lets us as exp aircraft manufactures make many decisions that are set in FARs for certified guys. flying with a rubber band motor or a straw filled with water as an altimeter IMC is fine. As long as they work (no reference to "safe") our government is protecting the lives of others. (no TSO required) GPS is different. Government describes not only its performance but "how" it gets to those requirements. so while we could build a transponder any which way to pass the performance tests, with GPS we must use their method. So even if a all-in-the-sky position solution provides a more accurate solution than the best 4 sats, we can't use it and are locked out of the approach. This comes in the form of RAIM warnings. so before you run out and buy that certified GPS, think about it. do you want a tool that blanks out between Hawaii and CA after flying around the world or the promise of updates 5 times a second when you get no updates for hrs if flying in the wrong direction? http://mail.lancair.net:81/Lists/lml/Message/27405.html yes, all problems will be solved... but think... what's best for you? also, don't sell a baro corrected GS short... CFS offers a GS all the way to dirt, below MDA for all approaches. not league, like that direct without radar coverage, but very help full. http://d2av.com/screen/lvk-faf.gif http://d2av.com/screen/lvk-map.gif http://d2av.com/screen/lvk-im.gif that "B" for barro next to the height above terrain changes to a "G" for gps alt above terrain with a certified gps...