NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Question regarding mathematics of Captain Thomas Sumner's calculations:
From: Frank Reed CT
Date: 2006 Jun 4, 02:41 EDT
From: Frank Reed CT
Date: 2006 Jun 4, 02:41 EDT
Just so you all are aware, Sumner's complete book is available online. Also Bowditch's Navigator from 1826. Peirce's Trigonometry (which derives most of the equations and methods in Bowditch). And Norie's Navigator from 1828. Details, links etc. on request. -FER 42.0N 87.7W, or 41.4N 72.1W. www.HistoricalAtlas.com/lunars
