Re: [PSUBS-MAILIST] Snow White navigation (was: Snow White virus)

[Carl Kem <dustyut@lasal.net>]

Sounds great, if you have a nuclear reactor on board.  Otherwise I think it'd
be a waste of power.
Carl


Richard Gordon wrote:

> Has anyone got any info on using electrolysis to liberate oxygen atoms from
> water for use by your rebreather system? This would probably be a pretty
> effective system as you would not have to store HP gas on board (aside from
> an emergency backup tank). The downside would be that you would only be
> producing oxygen when you have elecricity. If you lost power for some
> reason, you would lose oxygen too. Perhaps this could work in conjunction
> wih a standard O2 supply.
>
> I know that big subs have O2 generators of this type, but I do not know how
> readily the technology can be miniaturized. Again, opinions please.
>
> Rich
> ----- Original Message -----
> From: Michael B. Holt <mholt@richmond.edu>
> To: <personal_submersibles@psubs.org>
> Sent: Friday, March 02, 2001 10:35 PM
> Subject: [PSUBS-MAILIST] Snow White navigation (was: Snow White virus)
>
> > "Sean T. Stevenson" wrote:
> > >
> > > How much room do you have in your sub?  As far as DR is concerned,
> > > I like to lay out a chart and use a pencil...
> >
> > Somehow, plotting a course with a chart and pencil always looks
> > more accurate, doesn't it?
> >
> > > Assuming you have
> > > an electronic solution in mind, are you talking about a GPS unit
> > > or some sort of ECS?  Electronically I can see using a fluxgate
> > > compass and external knotmeter to provide NMEA info on course and
> > > speed, with the GPS overriding when the signal becomes
> > > available (when you are surfaced).
> >
> > As I said, I supsect this sort of thing is available.  Probably
> > in a high-end GPS unit, come to think of it.  This is just
> > a thought-experiment.
> >
> > > Adjustment for current would need to be made according to a
> > > tide/current atlas, but the information in these publications
> > > is generally surface oriented.
> >
> > Come to think of it, is there any charting done with submarines
> > in mind?
> >
> > > How much of a discrepancy will there be at depth?
> >
> > Good question.  Possibly none.
> >
> > > As for staying out of  the way of traffic - you're in a
> > > submarine... just who are you expecting to run into?
> >
> > I'm more worried about fishing boats and the like on their way
> > to wherever they are going.  They'll stay in certain lanes,
> > if only out of habit.
> >
> > This does get back to the question of "What do you expect
> > to do with your submarine?"  Submarine use can probably be
> > divided into a very few specific categories, based mostly
> > on the range and endurance of the boat.  How many of us
> > expect to wander any distance?  Will there be a repeat of
> > Simon Lake's 1898 trip that covered 1000 miles, part of it
> > in the Atlantic Ocean?  I doubt it.  Most of these boats
> > will drop to the bottom, cruise for a short distance and
> > get back to the support site rather quickly.
> >
> >
> >
> > Mike
> >

--
"In times like these, it helps to recall there have always been times like
these."-Paul Harvey