A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: David Fleming
Date: 2016 Oct 4, 23:47 -0700
While it is true that the small latitude circle representing 41 N is quite different from a great circle, the part of the great circle that connects two points located at 41 N and 1 degree of longitude apart (the short way not the long way) is for all practical considerations identical to the part of a constant latitude small circle connecting the same points again the short way.
While I know nothing about how you made the path, and though you think it is part of a constant latitude circle there is not a chance in hell that Google Earth didn't draw a great circle to connect the points. And for that part of the great circle .7576 degrees is the arc length.
PS I'll not communicate further on this topic.