Return-Path: Received: from serval.noc.ucla.edu ([169.232.10.12]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with ESMTP id com for ; Tue, 17 Aug 1999 18:12:03 -0400 Received: from default (ts39-6.wla.ts.ucla.edu [164.67.22.115]) by serval.noc.ucla.edu (8.9.1a/8.9.1) with SMTP id PAA09271 for ; Tue, 17 Aug 1999 15:15:34 -0700 (PDT) Message-ID: <005701bee8fd$775b61c0$731643a4@default> From: "Marvin May" To: "Lancair List" References: <002f01bee8f4$4b9b8460$731643a4@default> Subject: Re: Terrain Data Date: Tue, 17 Aug 1999 15:11:32 -0700 X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> > > > > "CLARIFICATION CONCERNING THE USE OF TERRAIN DATA IN MOVING MAP DISPLAYS: > > > > Terrain data are currently available and can easily be incorporated into > > moving map displays. However, existing terrain data is not accurate and can > > be seriously misleading. The problem is further exacerbated by GPS error > > introduced by the military. Because of the errors, most moving map display > > manufacturers have prudently decided to delay displaying the terrain data > > until it is reliable. > > > > Among these manufacturers, Archangel is one of the companies selected by > > NASA to help correct the data presentation problems and develop reliable synthetic vision displays. The corrections are expected to be completed next year. At that time 3-D terrain will be > > included on Archangel and other moving map displays." > > > >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML homepage: http://www.olsusa.com/Users/Mkaye/maillist.html