CNN CNN Newsroom April 18, 2014 18:40:00
If you can imagine having 20 odd thousand feet of umbilical, that's four miles of cable going down to this robotic machine and working around a wreck. all of that could well get snarled up. thoost one of the big problems with working in those conditions, the manned submersible, although there are very few in the world can can go the depth they can move around without nag iging umbilicals. then it's up to the deep water rovs to work together. >> as we just demonstrated for
Source: archive.org