A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2021 May 22, 11:50 -0700
To compare see the attached PDF for the Hanno Ix Azimuth Diagram . The Ix diagram is only a single page but needs a way to determine prime vertical to settle an ambiguity. I like using a pocket slide rule for determining the prime vertical to stay non electronic .