It would be great if there was some sonar equipment or something that can be used to see underwater so they can see if there is a plane down there. It would be horrible for the families if the plane is down there and they just stop searching and it turns out that’s where its laying.
The sonobouys they’ve been dropping in that region are designed, among other things, to detect the signal of a large object in the water. I think they can also listen for radio signals like the frequency of the black box ping as well with them.
Dangerous cargo of Lithium Batteries now admitted!