A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: John D. Howard
Date: 2017 Jul 24, 09:31 -0700
No need to bend the caliper into an arc, just use the straight line to measure the cord of the sextant arc. Should be easy to have a program convert the cord length to degrees arc. It would be cheeper to make as you could use off-the-shelf components.