Everything you need to know about the devices that help air-crash investigators determine what went wrong. It’s a device that helps air-crash investigators determine what went wrong, by providing a detailed record of a plane’s final hours. Passenger jets normally carry two of these shoebox-size containers — one holding a voice recorder, which captures pilots’ conversations and other cockpit noise, and another housing a data recorder, which logs the plane’s speed, altitude, direction, fuel flow, hydraulic pressure, and hundreds of other metrics.
Secrets of the Black Box
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