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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Measuring (and Calculating) Dip
From: Paul Hirose
Date: 2013 Mar 11, 08:12 -0700
From: Paul Hirose
Date: 2013 Mar 11, 08:12 -0700
I wrote: > If you change faces, the effect > of index error has the same magnitude but opposite sign. Thus, the > difference of the face left and face right readings is the index error, > and the mean is free of index error. Correction: the difference between face left and face right is TWICE the index error. --
