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Peter wrote

> An inaccurate DR will lead to longer intercepts, an inherent enemy of
> accuracy. The remedy is to take the indicated Fix as an improved DR and repeat
> the sight reduction exercise.
>
> Incidentally, methods of sight reduction that use a presumed DR expressed in
> whole degrees suffer the same inherent defect. From reading this List, and
> other sources, such methods seem the most popular today; presumably because
> they remain the main methods taught. An example of the triumph of inertia over
> an informed mind.

I am at the point that I can whip out Hc and Zn in 3-4 minutes on my TI-30XA
(3 memories) with no paper or pencil needed from any AP I wish.  I am glad
that I learned a tabular method first as it gave me a better understanding
of what was going on, and provides me with a backup to calculator methods.

I do agree I prefer a short intercept. Regarding long intercepts and
accuracy, the offset table can to help nudge a point on a an LOP a long
distance from the intercept to better approximate the COP.

Bill

   

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