A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Bob Goethe
Date: 2018 Jan 22, 11:07 -0800
Is a great circle course, as laid out on a gnomonic chart, useful in determining distances?
For instance, if I draw a line on a gnomonic chart from Vancouver to London, can I measure half way along that line and say "That is indeed the half-way point in a journey that follows this course-line"?