Page 20 - Pinger News Today

Continue to dive until we get to 8,100 feet. the hmas "sydney" that sank back in the 40s. continue to dive. we are past 2,000 feet. we are about to 12,000 feet where the wreckage from the "titanic" was discovered. 12,500 feet about 70 years after it sank. the hms sydney and titanic opens we can get this wreckage without a signal. that is what searchers have to do without the batteries of the black box and once they die. that took some time, of course, air france at 13,000 feet. then we get to th...

>> reporter: weve been talking a lot about the high-tech devices that have been turned loose to listen for pings off the ocean floor. like the toad pinger locater and theres been word of the buoys being dropped out there. but any device listening in the deep ocean faces unique challenges because sound does very strange things traveling through all of that deep water. heres just one of the challenges out there. theres a layer about a half mile down in the water here that is a naturally occurring ...

Searchers detected that fourth ping in -- or at least they think its a ping -- in the southern indian ocean, now the only sound around is the sound of, well, nothing, just silence. >> the big question is, have the batteries on the planes black boxes died already? and is it now time to concentrate on the underwater search? >> tony abbott stressed again today he is confident the signals detected by a pinger locator are from one of the planes black boxes. the pings were detected within 17 miles of ...

You? >> yeah. and i think part of the issue there as many of these people ive uk taed to thalked to them too. weve put instruments, dropped them off the side of a ship with a pinger attached, to call them back and find them later on. many times they dont come back. even though we know its right beneath the ship. so i do understand where the skepticism comes from. weve got to have faith in this case. and these sound pretty solid. i dont know what else could have that frequency and be in that posi...

Unprofessional. that is what got the malaysians into so much trouble. so to hear this from the prime minister today, after no advancements, that doesnt add credibility, all it does it take away the small faith that the families had in the government at this point. so i am just a little concerned and confused about this sudden confidence that it is from that airplane and it is the pinger. you know, i believe that it is, im confident that it is, but im not the prime minister. that bothers me a lit...

Salinity, temperature, and if sound is coming up here, and it hits this layer. because this is slower, it could essentially bend that sound and make it go to a different angle than it was a moment ago, and then it may come out where you dont expect it at all. also, in some cases, it may come up, hit the layer and start ping-ponging between the top and the bottom of it. and by some theories, particularly with lower sounds, it may go many, many, many miles before it comes out. this may explain why...

First of all, to get to it from the cabin area. youd have to take them -- theyre in the back of aircraft. theyd have to be taken out, brought forward. the best way take it out of the aircraft would to take it to the equipment bay and drop it overboard through the outflow valve, which is in the bottom of the bay. that would be about the only way you could do it. again, it would be extremely difficult if not impossible to get it from the tail of the aircraft into the interior of the aircraft. >> p...

Urgency now. the batteries on the planes black boxes due to run out and just days after expressing optimism about the missing jet, australias prime minister now saying that the search could go on for a long time. dominic dinatale joins us live from l.a. with more. >> reporter: hey there. yes, its been a process of elimination really in working out what these signals could be. was it a submarine that shouldnt have been in the area? prime minister of australia has been saying that he feels deeply,...

Be able to find it because its in something like that. i have to tell you, phoenix international, the group out there appropriating, superb at this thing. finding that pinger. if they need to, penetrate inside an aircraft and remove the black box. theyre the best on the planet to do that. >> yeah. how much time do i have producers? i wanted to ask something else. i can ask in the next segment if i cant. okay. i want to ask. a great point from one of my senior producers in the booth is that we ha...

It is called a pinger locator. this has to be within about a kilometer or some of where the pinger would be. and what it does is it gives you a target strength and a bearing. you put this on an underwater vehicle and you can get a target strength and bearing so that vehicle could then find its way along the sea bed to wherever that pinger is located. >> but this is the part that confuses me. if that device needs to be within a kilometer, how can these four different locations, 17 miles apart fro...