Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!att!cbnews!military
From: harold@celia.UUCP (Harold Buchman)
Newsgroups: sci.military
Subject: Submarine Conning Displays
Message-ID: <10090@cbnews.ATT.COM>
Date: 11 Oct 89 02:44:12 GMT
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From: harold@celia.UUCP (Harold Buchman)

In response to an inquiry about displays for submarine
helmsmen- I recall seeing a picture of an experimental 
display in a book from the early 60's. Unfortunately,
the book had no explanation beyond a brief caption,
and no illustration of what the actual screen display
looked like. It was switched off or blacked out in the
picture. Its quite possible <my conjecture> that it was
in fact a mechanical display, something like the meatball
in an airplane.

It's unlikely that they're processing active sonar returns
for an elaborate display of the outside environment, since
the computation would take quite a while, and you would not want
to be radiating under most combat circumstances anyways