A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2016 Aug 20, 13:29 -0700
A good compromise for a precise 0.1' natural haversine short table can be had by using a small interpolation table. Robert Bernecky's 5 place PDF table (attached) is as good as any for DIY modifications. Imaged below is a laminated example held together with a loop of ballchain. The small interpolation table is taped to the back page and is visible for any page openning. The interpolation table covers the maximum difference of .00015 between entries and makes possible quick 0.1' extractions.