CNN CNN Newsroom April 13, 2014 01:50:00
Them. >> reporter: in this mission the sonobouys and orion planes deployed will detect sounds of black box pings. sonar operators on board the aircraft are manning xurcompute to receive and analyze the signals. they are dropped in a >> the beauty of these things, sonar buoys, they stay out a long time. up to eight hours. >> reporter: then expire and sink to the bottom. they can go around 1,000 feet down. how do they detect signals? possibly from black boxes which could be as far down at 14,700-plus feet. experts say the sound 34506move through the water and with good weather signals are easier...
Source: archive.org