Date: 14th April, 2014
By: BBC
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The detection of crackly ultrasonic "pings" from the depths of the ocean began to suggest the search for missing Malaysia Airlines Flight MH370 was finally reaching a conclusion. These signals usually generated by the plane's black box flight recorder seems to have faded and search teams now have to turn to an alternative way to locate the wreckage under the sea. They started to deploy a sub named Bluefin-21 for the hope that it can track down the faint singnals by the flight recorder of the plane in order to locate the wreckage under the sea. The Bluefin-21 scans the bottom of the sea for any debris its fully automatic and can run under water for a total of 20 hours, which 4 hours are devoted to descending and ascending of the sub to the suitable depth. Well i think that this is a good way to locate the airplane as air searches have been proven to be not too useful, although satellites have spotted large objects floating around in the ocean no plane did ever come in contact with those debris. Also this specific sub can provide detail about where and what is on the bottom of the sea floor by using sonar, this can also save time for the search crews to not look at unimportant stuff that is under the sea bed. I also think that they should use this method a long time ago as it saves time and effort, as the sub is fully automated and also it can cover a large area in a relatively short period of time.
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