Comment Re:Does it really cost $100k? (Score 1) 461
They have those already - at least the sonar one. It pings for up to 30 days once it hits the water. The issue is that you have to be relatively close to the plane to hear the pinging. Even with Air France 447 when the ACARS data told us where the plane was as it was crashing, it still took almost two years and several searches to find the hull of the plane. In this case, it appears everyone spent the last several days looking in the wrong place, because the military either didn't report or no one listened to their report of spotting the plane in a very different, unexpected location over an hour after it disappeared off the civilian radar. I hope someone in charge wrote down that lesson.
As for the cost of the devices: How much is this search costing the countries involved? It's probably enough to pay for installation on quite a few airliners at this point...