A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Gary LaPook
Date: 2015 Aug 5, 21:20 -0700
NACA report 198 relates to flight navigation and describes the various sextants developed for that use. I post this report before, it has much that should interest the members of this list. The description of the haversine starts on page 296.