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RE: Malaysia Airlines Flight 370 - elgar1uk - 06-04-2014 22:10
(06-04-2014 20:47 )babelover48 Wrote: how many days left?
The plane is believed to have crashed on Saturday 8 March.
RE: Malaysia Airlines Flight 370 - Charlemagne - 07-04-2014 06:21
More signals have been found this morning.
RE: Malaysia Airlines Flight 370 - lovebabes56 - 07-04-2014 09:33
can the pings be picked by sonar?
RE: Malaysia Airlines Flight 370 - HannahsPet - 07-04-2014 11:39
yeah sonar can pick up pings how sonar works is it emits sound waves that bounce off objects and returns to the collector so any other sound will be picked up thats why in the submarine films they are always have silent running when they are in danger
RE: Malaysia Airlines Flight 370 - Colonel Bogey - 07-04-2014 12:58
The Australian searchers don't accept the Chinese reports of signals, according to today's media briefing. They said that signals sounding like pingers have been heard by an Australian ship today and that 2 distinct signals were heard, which is what they're looking for. The location is within the search area defined by the latest satellite analysis. The earlier Chinese location of reported pings was dismissed as being too far away.
RE: Malaysia Airlines Flight 370 - whizzer - 07-04-2014 13:52
That's not very nice of the Australians to rubbish the Chinese findings. Some of the news reports said that sounds can travel a long way underwater, so maybe the Chinese reports aren't incompatible with the Australians' own findings.
RE: Malaysia Airlines Flight 370 - Glenn Miller - 07-04-2014 14:39
It's not just the distance though. The Australians seem sceptical of whether the method the Chinese were using, a listening device on the end of a pole, was even capable of detecting the pings in the first place.
RE: Malaysia Airlines Flight 370 - HannahsPet - 07-04-2014 15:42
(07-04-2014 14:39 )Glenn Miller Wrote: It's not just the distance though. The Australians seem sceptical of whether the method the Chinese were using, a listening device on the end of a pole, was even capable of detecting the pings in the first place.
so dragging a microphone behind the boat is better than it on the end of a pole
RE: Malaysia Airlines Flight 370 - Tumble_Drier - 07-04-2014 16:30
(07-04-2014 15:42 )HannahsPet Wrote:(07-04-2014 14:39 )Glenn Miller Wrote: It's not just the distance though. The Australians seem sceptical of whether the method the Chinese were using, a listening device on the end of a pole, was even capable of detecting the pings in the first place.
so dragging a microphone behind the boat is better than it on the end of a pole
Yes, significantly better.
They'd need a hell of a long pole to get down to the depth that a towed pinger locator operates at.
RE: Malaysia Airlines Flight 370 - dark skies - 07-04-2014 19:53
(07-04-2014 13:52 )whizzer Wrote: Some of the news reports said that sounds can travel a long way underwater
Not that far though. The pingers have a range of 4km. In the right conditions it could be double that or triple that, or at an unlikely stretch possibly even 10 times, but even that would be only 40km. The Chinese are 600km away from where the Australians detected signals, so I can't see any way that both ships were hearing the same thing. Whatever the Chinese broomstick in the water picked up it wasn't what the Australians have been listening to.