A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Murray Buckman
Date: 2021 Sep 16, 14:02 -0700
I can only speak for the world of water and not the sky. It depends on which school you went to. Bowditch defines them differenty, and uses Track Made Good, avoiding course made good.
So this is just my version.
My usage, as I was taught at the then New Zealand Ministry of Transport Maritime School back when Adam was in short pants, has always been that Course Made Good was my best estimate of true bearing from a position to a new EP (estimated position) based on all factors available to me (compass Var. & Dev., leeway, current, and the helmsan between 1am and 4am who always seems to steer 5 degrees high).
That differs slightly from Bowditch's Track Made Good - but we went to different schools.
Bowditch - with admirable logic, notes that a course is something steered, whereas a track is the result (and is usually somewhat irregular). And so a track over ground represents the vessels actual path between two points.