That because at 3mph, any debris may now be over 1,500 miles away from the original crash site and widely dispersed.
It seems to me, hearing about drift, currents, dispersal, and all else that happens on the ocean surface-that maybe those subs and ROVs with all their listening equipment that are said to be available/on the way might be the better search vehicles. Surely things-especially big ones-don’t move around that much down on the ocean floor unless there is an earthquake-and I’m guessing a big piece of a plane might be easier to find, especially if it is sending an auto signal.
The plane was never in the s Indian Ocean.