NavList:
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: Hanno Ix
Date: 2015 Jul 13, 02:15 -0700
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From: Hanno Ix
Date: 2015 Jul 13, 02:15 -0700
Gary,
yes, but tough to read consistently within +/- 2sm,
and probably very hard and risky under stress, in dimmed light,
and probably very hard and risky under stress, in dimmed light,
when one is cold and wet and scared and without a stable
support for the sheets.
This additional uncertainty is totally unnecessary. It is much easier
for the designer to enhance the scale with 2 sm marks beforehand
than for the poor soul in stress to interpolate every time he uses
his Flat Bygrave. There is no technical reason to burden the user
with something that can be avoided per design.
than for the poor soul in stress to interpolate every time he uses
his Flat Bygrave. There is no technical reason to burden the user
with something that can be avoided per design.
You might argue, in real stress situations a bigger error is not significant.
Maybe - maybe not, every emergency is different.
Robin Stuart is a very helpful person and an expert in making accurate and
detailed scales. I suppose he would assist you in refining your scales
if you decided to do so.
detailed scales. I suppose he would assist you in refining your scales
if you decided to do so.
H
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On Mon, Jul 13, 2015 at 12:56 AM, Gary LaPook <NoReply_LaPook@fer3.com> wrote:
It's not at all hard to visually interpolate, try it yourself!
gl
