Page 36 - Tpl News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Accommodate the families if they decide to fly here. he used the words, when they come, not if they come. he said when they come. more optimism than we have ever seen so far in this search on day 33. >> they have detected the four sounds. the two they detected on saturday they determined they weren't naturally occurring sounds. this he did come from a black box. many are wondering, why not just send the submarine down right now to look? why don't they? >> reporter: there are a lot of people who are anxious to get this submersible down to take a look and start taking pictures but they are waiti...

Efficiently and safe time in the future. one day's work for the tpl takes about a week for the submersible. that's why we haven't seen it deployed just yet. it will be coming specially if they continue to detect more pings. >> i hope so. will ripley reporting live. thanks so much. for more on the pings, i want to bring in chris. he is the director of duquesne, a hyco company, which makes underwater locator pingers. welcome, chris. >> thank you. you got a chance to hear the first set of pings. what did they sound like? exactly like our product is designed to sound like. can you say with 100% ce...

They know they're racing against the clock. seems to take a long time for them to make passes. why? >> and i will show you. bring out and you will see the tpl, the towed pinger locator. bearing in mind this has been 3,500 feet below. it is towing that much stuff behind it. it can't stop. if it stops the tpl will sink to the bottom. >> right. >> so it has to keep moving. it is moving, according to angus houston, at walking pace. so the interesting part about it is it takes about six hourses to do a sweep, a turn, and a sweepback again. if you look at the timings of these two, we got the timings...

Over -- that's over 5,000 feet you're looking at. and then the titanic. this is wreckage they've used some of these special vehicles that they will hopefully use this time around when they get there. the titanic was wreckage was discovered at over 12,000 feet. yet again, not even at the level what we're talking about here. let's bring in jeff wise, cnn aviation analyst, to talk about this search today. it really shows you the perspective of what you're dealing with. it's deeper than anything we've looked at before. the tpl, when we're towing that, almost 10,000 feet below the surface. the ping...

The ocean shield moves through the water, as we approach what we thought could be the black boxes the signal got stronger and stronger and as you pass it it gets weaker and weaker. that's consistent with what we expect as we approach the blacks box and that's when we did that turn around to acquire it again. second thing we did is we did have two distinct locations. about the same frequency, two locations and once again that's consistent with the fact that there were two black boxes on this aircraft, the voice data recorder from the cockpit and the separate data recorder. so, you know, if you ...