NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Logarithms by Hand
From: Greg Rudzinski
Date: 2014 Jun 6, 12:31 -0700
From: Greg Rudzinski
Date: 2014 Jun 6, 12:31 -0700
Attached is an attempt at a from scratch sight reduction without logs. A sin cos graph was drawn on the back of a folder to be used with a triangle and dividers. The sight reduction worked out to 110' away (Not so good). What worked better was using just the sin cos scale on a K&E slide rule to 3 places then performing longhand multiplication to 4 places. The result came in within 10' NM.
Greg Rudzinski
File:
