Re: Still on LOP's
Subject: Re: Still on LOP's
WSMurdoch@XXX.XXX
Date: Fri May 03 2002 - 20:21:04 EDT
I am still having a hard time with the 25% of the time you are inside the
cocked hat rule. It just does not 'feel right'. I have played around with
the Excel spreadsheet map that I mentioned a week or so ago, and I can not
get the calculations to work like I think they should.
We have been discussing LOPs in two-dimensional (surface) navigation. I have
what may be a simpler question. What rule applies in one-dimensional
navigation? Let's say you are a tightrope walker, getting nervous, and want
to know exactly where you are on the rope. You whip out your sextant and
with a little skill and calculation plot two POPs (points of position). The
two POPs are not in the same spot (naturally). What is the chance that you
are between the two POPs? What is the chance that you are to one side of
both? What is the chance that you are on the other side of both?
Bill Murdoch
