CNN CNN Newsroom April 5, 2014 20:28:00
Trenches or to find it after the pinger has stopped in those trenches is going to be extremely difficult. >> all right. you're looking right now at a black box even though it's orange. it's got reflective tape on it, and on one end you have the beacon and there's a sensor so when it hits water, that's when the pinging starts. so, zain, this goes down with the wreckage, this will sink but there's such a thing as a deployable black box, military jets already have them. >> right. >> why aren't they on commercial flights. >> number one, you have to think about the amount of resources and the time ...
Source: archive.org