NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Sean C
Date: 2012 Dec 7, 04:25 -0800
"...we can accomplish the same thing with less work and less wear an tear on the paper." -Gary LaPook
I like it.
I've always made my own plot sheets. I started out measuring the distance directly with dividers between the meridian and a graduated diagonal. Wanting to be more precise, I started aligning a straightedge on the parallel above and using a triangle to transfer the longitude scale to the parallel below. Now I use graph paper and am back to measuring the longitude directly from the meridian, sometimes swinging the dividers much like a sextant to ensure I have the correct distance. Although this is not usually necessary when using graph paper.
But the method you have presented seems much simpler. And I see no reason to preclude the use of any convenient metric. In fact, I am now experimenting with large scale sheets with multiple fix plots per sheet. I'll try this method next time I work a problem.
Speaking of multiple plots per sheet: Is this a common practice? Seems to me if the distance run between fixes is great enough, there shouldn't be too much clutter. And a plot can always be enlarged easily on another sheet if desired.
Also, is graph paper used often/ever aboard ship? Or is it simply a matter of personal preference? I find it makes aligning a protractor/plotter very easy.
Regards,
Sean
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