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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Another "emergency navigation" sight reduction method
From: Greg Rudzinski
Date: 2015 Jul 5, 17:49 -0700
From: Greg Rudzinski
Date: 2015 Jul 5, 17:49 -0700
Hanno,
The 10' table versions for N(x) or haversines will fit on one side of a standard page. Going to 3 place precision (emergency use) will save space on the RIC too. Four complete reductions by hav Doniol or seven complete reductions by slide rule/classic formula will fit on one side of a RIC.
Greg Rudzinski
From: Hanno Ix
Date: 2015 Jul 5, 13:03 -0700If you can spare extra space your 10min version is of course much better. However, you might now have to increase the digits of the N(x) entries to 5 to support that higher resolution.Greg,you might be able to improve N(x) by a factor of 2 if you made another N(x), call it NN(x), where the N(x) values are doubled. They then would be even numbers and particularly easy to interpolate. The absolute values of N(x) or NN(x) do not matter, just their ratio does. NN(x) would not need more space.
H
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