A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Robert VanderPol II
Date: 2022 Jun 22, 20:34 -0700
My sense is that for medium-high precision work (4 significant digits) circular (or more accurately spiral) slide rules were needed. For even higher precision (4-5 significant digits) you needed a Fuller or Thacher.
So, while not particularly popular, they did fill a required niche.
From: Paul Dolkas
Date: 2022 Jun 22, 18:49 +0000