Next message: Arthur Pearson: "Re: DR plotting techniques"
I believe that you are referring to the Dead Reckoning Tracer, which has
always been a secondary system used in CIC(Combat Information Center).
While it is useful for plotting the position of a man overboard it is
not relied on for a DR position over a long amount of time. It relies on
inputs from the gyrocompass and the electromagnetic log but doesn't
receive updates from the gps. While it is a very useful tool for
plotting the relative position of contacts it is not as accurate or as
easy to use as modern ARPAs and electronic charting systems. It is just
one more of the systems that is going to disappear as the Navy moves to
more modern (and maybe better, or maybe not) systems that simplify the
way we do business on the bridge of a warship.
-----Original Message-----
From: Navigation Mailing List
[mailto:] On Behalf Of Royer, Doug
Sent: Friday, October 17, 2003 14:38
To:
Subject: Re: DR plotting techniques
Stacy,thanks for the info about the websites.That's real good info.By
the
way,you mentioned you were in the Navy so I figured you guys correct
your
charts.Do you guys still use the DR plotting(maybe they were called DR
positioning)machines.I've seen them(there are pictures of them in the
old
Dutton books)but don't really know how they work.
