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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 even for that Titanic & Bismark stuff. So I think you can get several miles of scope on your cables. If silting is a problem can't you get it through the restriction, wait for the silt to settle - even if it takes hours, then continue your mission? You can send a ROV into smaller openings, down into deeper depths, further along the system and they can stay down longer ALL at no risk to humans. You can design ROV's for specific applications as well. I would also venture to guess that insurance on robots would be cheaper than the insurance on the team members on WKPP's projects. 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. 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? 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. My thoughts, Mark Alex Varouxis wrote: > > Mark > > The amount of cable and the structure of a cave make this impossible. The > tether would get tangled the ROV would kick up of silt. In this case a diver > can do many times the amount of work than an ROV. The next problem would be > the cost of the insurance for the ROV being used in a cave. > > Regards Alex > > At 02:39 PM 1/2/97 -0500, Mark Welzel wrote: > >George, if you guys are so interested in DOING IT RIGHT and > >SAFETY can you tell me why you risk your lives when ROV's > >could do a better safer job exploring those nasty caves. Hell, > >you would probably be done by now and could get on to some > >other worthwhile project with your "team". > > > >But, of course YOU wouldn't have the end of the line, your > >robot's would. It would be the BEST way, though. And you are > >a stickler for BEST, regardless of cost. Or are there areas > >where even you will weigh cost vs. risk? > >
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