Page 20 - Acars News Today : Breaking News, Live Updates & Top Stories | Vimarsana

The plane home and delivered the loved ones back to an airport, though perished. so there must have been something else. >> this is about an electrical system. john cook asks this, he says, what is the probability that an electrical issue rendered the acars and oxygen systems inoperable. geoffrey, what about that? >> jeffrey wise? >> no, geoffrey thomas. geoffrey thomas? >> sorry, okay. beg your pardon. look, electrical problem, you've got power from the engines, we know that, so you do have electrical power. you also have a ram air turbine which also provides electrical backup power. there ar...

Crashed, the transponder was on, the acars was on, but the black box wasn't found for two years. remember, we have the gps on the black boxes that last for about 30 days. the way these were found was by robots. >> how many square miles last time, very small? >> far smaller than 600,000 square miles. they found the debris field, and it led them to the black boxes. that will be key once we find the haystack, but we have to find it. that's what we're trying to do. >> great report. really appreciate it. >> more breaking news. we heard from chuck hagel who said once again the u.s. still cannot rule...

At, once it's found by the search area, debris on the surface, they find the needle. it's hard. we know from air france 447 the haystack found straightaway through transponder and acars, needle in terms of black boxes it took two years to find those. there are serious constraints with technology. this ping in the area, down to 20,000 feet and potentially depths of 23,000 feet. so there's discrepancies there. these things will be key. these are whether or not found debris field 447. >> many more hurdles to get through here. we have to wrap it up there. as always, thanks for your expertise. at...

Provides the classic aero satellite system. that is the interface between the jet and the acars. that provides position, altitude heading and speed. the acars was switched off. what we know about is these pings. yesterday we're talking about these handshakes. they come in the form of a microwave. it's all about doppler shift. >> explain this. >> what we can say is if the plane is moving away from the inmarsat satellite, you get this elongated wave. if it's moving toward the satellite, you get this compressed wave. we know the station stands fixed in the orbit over the indian ocean. what this h...

Airplane, we're scouring as they have been with planes and search vehicles of every type, nothing so far. why make the conclusion that -- the definitive conclusion it went down here? >> yeah, again, i don't think you can. i think it's the most likely explanation. and i'm with michael on the time line issues, because there's no real way to tell who did what when if acars was off. i don't know where they're getting all that information from. >> even what he's talking about in terms of the waves, the different waves and the analysis in terms of the signals going up to the satellite, do you agree ...