Page 54 - Pinger News Today

Theyve located it, but i have to see more data. >> we welcome our viewers who are joining us from around the world as we now simulcast on cnns international network. were talking with simon boxwell who is an oceanographer with the national oceanography center. the question is, if not a pinger from a black box, simon, what else could send up this pulse signal, that according to the chinese state news agency xinhua a chinese patrol ship has detected in the south indian ocean? >> well, a lot of equ...

The pinger is very limited in range. and the depth there is great. usually the pinger is something you acquire after you determine the debris field, exactly where the plane rests because it can only be detected up to a mile or two. and that, i fear, is the depth that theyre looking at. i hope it is. i really do. the other aspect of it is, i think, i was surprised to hear about debris. usually at that depth, debris comes up really at impact and very little thereafter because of the pressure. so i...

If even this turns out to be correct. that it is a pinger signal from the aircraft. to get into the next phase which would be to really delineate the area or debris area or on the bottom and focus in on the black boxes, the recorders, it will be extremely expensive and it could be long term. >> peter and arnold carr and richard quest, please stand by. if you are malaysia airline, how do you restore trust in your company again? you may have to call my next guest. (dad) well, weve been thinking ab...

Meters, thats about a mile -- a little under a mile and a half to about three miles. so i could see it would be easy to hear the pinger and then lose it for a bit but well have to wait and see. >> okay. so the fact that it wasnt completely continuous youre saying that that doesnt necessarily mean something. richard, when you look at these latest developments, what are you thinking? >> well, its like everything else involved in this incident, i can give you an argument for and i can give you an a...

S. is this something that the chinese have, and they are using? >> i understand it is a system made in the u.s., and it is a standard sonar crystal item that changes a voltage to the mechanical pulse that pushes out into the water the, and once you have that crystal, you can fairly straight forward to make a pinger or a pinger receiver. >> thank you, sir. i appreciate it. you wanted to the say something else, richard quest? >> i would like to the -- >> is he still there? >> yes. i want to quickl...

From the surface, and lowering it by the pole. the reason that the depth is so important is because, again, as we have been saying, you have to be within a one to two-mile radius to detect the pings from the black boxes, however, and there is a but in the story, and always a but in the story, but one surveillance ocean expert says that there are certain conditions like water temperature that could allow the sound to travel a longer distance, such as cold water, so that might fudge the numb bears...

Will be listening. >> reporter: pinger locaters have been used for years. in 1996, a tpl successlly located the black box for twa flight 800, though that was in shallow waters off new york. investigators used one in 2009 when air france flight 447 went down in the atlantic but found nothing. if they have any luck locating the pinger from flight 370, next theyll deploy this autonomous underwater vehicle. it maps the ocean floor. >> it will start running patterns back and forth, shooting sound out...

The flight recorders were due or to be inspected in june. so we are right at that 30-day mark here. >> yeah, were within hours here, guys, i think its 1:30 today will be the 30-day mark from when if this plane indeed went into water, we have a flight data recorder here on the desk with us to give you an idea of what it looks like, the size and kind of the dimensions and the parts were discussing. here it is. this is not the exact model that was inside malaysia airlines flight 370. but here on th...

Oceans. richard quest is a cnn aviation correspondent and arnold carr joins us. how can they be sure the sound is from a pinger, greg? >> we clearly need more information. i would like to see what kind of hydrophone which is the instrument you hear these things on. an underwater microphone. see which type of hydrophone they are using. a readout and our sonar expert here is probably better equipped to actually look at that. you have to keep in mind there is a lot of sources, potential sources, in...

As i understand it coming up on the screen. >> but the fact is theyre going to need to get the right technology there. theyve got two pinger identifiers plus we have the sub out there which may be the best because of its acoustic sensing. so they can send all these over there plus the british ship, the k echo thats got sonar detection and look in this area and they could even send a deep dive, but it wasnt coordinated this way, so now weve got our hopes rising up to a peak, and we dont really kn...