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"Noyce, Bill" wrote:

> 'Our experience is that it is rare for our known position to be outside
> our LOPs...'
>
> This suggests that there is some systematic error that applies to
> all the sights.

If a series of sights show that the actual position lies within the LOPs
then I would make so bold as to suggest that it shows the system is working!

C'mon guys'n'chaps'n'gals, get real! Navigation is a practical skill, it
enables us to know where we are, not to get lost into fooling ourselves that
up is down and black is white, that we are unlikely to find ourselves within
our LOPs, that three intersecting LOPs prove that we are surely somewhere
else ...
And then quote 'Alice Through the Looking Glass' at me!

Come on out of your ivory towers and rejoin us here in the real world where
our boats have three dimensions and take up space, just as the lines on a
plotting sheet, at the scale I normally use, are about half a mile wide. It
may not make perfect theory but it works.

And where you can use practical skills to locate and plot your process
across the trackless void of ocean.
The rest is non sense.

   

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