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Le 2 Jan 97 @ 16:59, Mark Welzel =E9criv=EEt sur "Re: Doing it Right (or
I wanna be a":
> Hi Alex, I see your point but can't a ROV be down longer or
> virtually indefinitely? They use them all the time commercially and
...
> You can send a ROV into smaller openings, down into deeper
> depths, further along the system and they can stay down
...
> Another point to consider is that the data retrieved from
> an ROV would not be biased by the diver and would be available
> to any necessary persons or agencies in its unadulterated form.
How could a ROV perform accurate surveys? By carrying an inertial
navigation platform? How accurate are those anyways?
> As far as entanglements I will admit I know little of the inside of
> caves. Perhaps you could have tender ROV's watching the cable for
> the "push" machine?
Aren't there ROVs who carry the spool of cable, unrolling it behind
them (=E0 la cable-laying ship), instead of dragging it all over the
place and risk catching it somewhere, or worse, causing a cave-in?
How big the cable need be? You only need two big power cables, and
two or three fiber optics for the data/video/control.
> I would think that this might be worthy of further investigation
> especially if you were seriously interested in mapping cave systems.
> Not as glamorous as doing yourself, but definitely safer. I guess it
> would depend on the objectives of those involved.
Designing a good ROV to do that should be as much fun as diving the
cave itself, I guess.
--------------- Pour la Republique Francaise du Quebec -------------------
In the French version of "2001: A Space Odyssey",
the last word uttered by HAL is "GOD"...
~~ Derniere plongee/last dive: Canal Soulanges (glace/icy) 96.12.31, 5m ~~
Marc Dufour - [\] ACUC6 31874 - TDI CD-0197 - http://www.accent.net/emdx
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