A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Bill Ritchie
Date: 2020 Apr 2, 03:40 -0700
I have posted three slide rule emulators on child folders of https://www.vigilanceofbrixham.co.uk/Astron/SlideRules/ .
1. TRADITIONAL BYGRAVE EMULATOR. This is the ‘proof of concept’ version. As I have never even seen a Bygrave slide rule, many assumptions have been made and some will be incorrect. Feedback via navlist.com or direct to my Gmail address of 1billritchie will be most welcome. It works ok and limited tests so far have given correct results. See Traditional Bygrave Emulator and User Notes . Thank you, Francis, for your offer to meet and see your collection of cylindrical slide rules - alas this will have to wait until travel becomes sensible again.
Bill Ritchie. 50N 003W