Page 162 - Ping News Today

Previously discussed, is information there that makes you wonder how had got there. really, the old need million the haysta haystack, there it is. the haystack, the whole indian ocean the needle being that one point that -- and they are -- they are doing it correctly. >> im going to ask you, miles the haystack has gotten smaller. assuming, as arnold says, they were on top of it or close to on top of it, narrows the search area. how much -- we have been talking about -- i feel like it is another ...

Is typically towed quite a ways off the seafloor and it doesnt go very far into the sea. its one of the classic problems that we have. if you want to get a picture youve got to be close to the bottom. if you want to use sonar by listening or making a ping by the side scan sonar youve got to be well off the seafloor. youve got to do one or the other. we have done both and its not a bad idea. >> lets go les. this one is coming -- people are wanting to know what happened in the cockpit. if pilots a...

Pilots overseas will get some currency training on that instead of going to a larger simulator. thats a little bit different from how western pilots would fly. >> some of the other pife lots that weve used as analysts here have mentioned to me they have simulators on their home computers, they showed me how easy it was, you buy a dvd and pop it in and you have a simulated. although his was a little bit more complicated. arnold, if we can bring you in, i know we talked about the pings. i know the...

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...

Hours there is no new ping, and lets say 36 days, the batteries on the pingers have expired. how long do you expect the wait before they will send down the blue fin with whatever area or whatever information they have because they dont expect the batteries to send out another signal? >> oh, i think theyre already getting ready to do that. the united states sent a supply ship in, a logistics ship. theyre getting stuff on site and ready to go. but remember, it takes a long time to get them ready t...

Devices in shallow water, those are unidirectional. they can really get into a point where the black boxes and the pingers are. when you get into this deep water, youre really looking at omnidirectional, meaning devices that listen for the ping but cant discriminate exactly which direction. so, in this case, what youre doing is youre really looking at the intensity of the ping to try to really relate it down to distance. >> got you. just another step in whats already been a difficult investigati...

Whats the latest there? >> reporter: yeah, you know, the visual search is wrapping up for the day. you talked about how far weve come, mentioning the size of the search area. at its biggest point, more than 3 million square miles. now were down to roughly 16,000 square miles. still a large area, but certainly a lot of progress has been made. but were missing one key piece here. still, 36 days in, we do not have one single piece of physical debris from flight 370. theres also the underwater searc...

Fascinating i was asking the researchers how does the sound travel because weve been hearing that the ping has a two-mile radius and heres the easiest way to explain it. heres how they put it, low-pitched sounds travel very far in the ocean. high-pitched sounds dont travel as far. and this pinger, jim, is a high-pitched sound and so they say thats why it has this two-mile radius and then, of course, i had to follow up with this question. i said because one of the complicating things about the se...

Of a company which makes that underwater locator pinger that everybody is searching for. he also got to hear and confirm the first set of pings detected by australian search teams. so chris, i know earlier this week you told cnn you were extremely confident the sounds were from the flights black box. now search teams have reported hearing four pings. is there any doubt in your mind that sound is coming, in fact, from flight 370? >> no, theres no doubt. the acoustic signature of the beacons and t...

Travel further. im optimistic for several reasons. one is they have repeated signals theyve detected. and when i say "repeated signal," its not one pulse, its pulses, plural. and the other thing is that they tightened up the area a bit. it still needs to be a smaller area to have effective side scan sonar and sonafication. >> one things searchers have to prepare for is you dont get another ping. lets say the batteries are dead. how big an area are they talking about, then? lets say those are all...