A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: David Pike
Date: 2017 Oct 16, 07:08 -0700
Quite satisfied with this model :) Cost is about $15.
I very much like the reciprocal course angles included on the perimeter degree scale.
Mine was free, but I did have to sign-up for 16 years to get one, and using the inner degrees scale would tax the imagination of a Professor of Reasoning at Cambridge University (only joking). DaveP