Page 2 - Half Handshake News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Their best probability of the area where the flight has crashed. what do you make of the move today? >> what we've got to fundamentally understand is they are working with the best information they have. it comes from the six pings, the handshakes, the half handshake. if you look at the way it has moved down. it comes right the way down into the southern indian ocean. that is the best guess that they have. >> how best is it? >> it doesn't matter how best it is. it's all they've got. and they say they have a high degree of confidence, a high level of credibility. so the first search zone was do...

Let's look here. >> they are using their very small two pieces of information, refining, recalibrating, rethinking. but that is it. because if there is some other piece of data, they ain't told us. and i think we might have heard about that by now. >> miles o'brien, what do you make of the shift? >> i think, anderson, what you've got here, we know from the inmarsat returns, these hand shakes, we can speculate pretty well as to when the flight ended. it was either the last full handshake or the so-called half handshake. so that means the plane was in the air for about seven hours. but that's al...

Four on the engines and then one in the auxilliary power unit. and as they were turning off and turning on, as it were, to keep electrical power going, that half handshake might have occurred. >> okay. and i want to tell our viewers, you've looking at the small little box and that is because we're waiting for a press conference from the australian prime minister, tony abbott. at any moment, he is expected to come out. necessary perth, australia. no one is sure why he is there. if this is a morale boolt boost, if there is some sort of information he will give. we'll carry it right here on cnn. ...

Completely, the other is still winding down. this is that plane. this is that slow degrade. >> richard, this is very important. to help searchers try to figure out where to look >> yes. because you're looking at where that last ping, that last half ping, the half handshake was. so clearly it would have been on the same heading according to this experiment. one thing i do need to put down to any viewer now marginally concerned about anything we are showing here, these planes are designed to fly for very seriously long distances on one engine. so at any point it's known as extended operations ov...

Position from that last ping at 8:11 local time and calculated that the aircraft will have impacted the water within a 1 50-mile radius of that point. that gives a search area of 70 square miles, but it is not the same area as all that debris is. >> so many questions. >> wow. >> and you know, there's even questions about the partial ping, possibly a partial ping that inmarsat says it recorded. can you tell us anything? have you talked to any of the experts about that? >> well, again, professor stuffles explained to me that the last ping, eight minutes later at 0819 in the morning, that may hav...