A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Peter Hakel
Date: 2017 Dec 3, 19:46 -0800
My analogous spreadsheets (attached) agree with yours on the locations of the waypoints. There are differences in the courses and distances for the individual segments between the waypoints; I’m pretty sure it’s because your spreadsheet uses (I believe) great-circle formulae, whereas mine refers to rhumb lines.