NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: GPS and Great Circle
From: Rodney Myrvaagnes
Date: 2002 Oct 8, 12:56 -0500
From: Rodney Myrvaagnes
Date: 2002 Oct 8, 12:56 -0500
Joe, That would depend on the firmware in your particular GPS receiver. You could determine the answer by asking it to point to a series of waypoints all at your current lattitude. If it calculates great circle the initial heading will be more toward the nearer pole for the more distant waypoints. If not, it will point true east or west for all of them. On Tue, 8 Oct 2002 09:41:00 -0700, Joe Winlock wrote: >I am a lurker in this group and actually know only a smidge celestial >navigation. I hope my question is not out of place here. I am curious >whether my GPS follows the great circle route or Mercator rumb line when >plotting long distance courses? >Thanks for patience with the dummy, >Joe... Rodney Myrvaagnes J36 Gjo/a "If Brecht had directed 'Waiting for Godot,' he would have hung a large sign at the back of the stage reading 'He's not going to come, you know. ' " -- Terry Eagleton
