Subject: North Pole, inertial navigation, and GPS Newsgroups: sci.geo.satellite-nav,alt.satellite.gps Date: Thu, 29 Jan 2004 05:22:25 -0800 http://www.confluence.org/confluence.php?visitid=7475 Some of you may be interested to read Shawn Fleming's narrative of his "visit" to the North Pole "to operationally test, in a realistic environment, new ring laser gyro inertial navigation units and avionics control units". They had consumer grade GPS receivers on the flight: "We had our personal GPS's onboard as well. Stuck to our windows using R-A-M mounts were my reliable Garmin eMap and a GPS-35 connected to a serial data logger. An additional eTrex was connected to a laptop PC for a real time moving map. We found their position data to be extremely close to the Ashtech costing orders of magnitude more."