NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Abhav sightreduction?
From: Antoine Couëtte
Date: 2012 Aug 1, 08:03 -0700
From: Antoine Couëtte
Date: 2012 Aug 1, 08:03 -0700
The Abhav method seems (quite) close to the "Tables Bataille" calculations with haversines which have been in official use in the French Navy for (well) over fifty years now.
See http://navastro.free.fr/dieumegard1.htm (I could not find any reference in English, sorry ...)
Kermit
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