What’s Inside a Plane’s ‘Black Box’?

India Today

The Black Box isn’t black, and it’s not a box either. It’s the most vital tool in any air crash investigation—recording speed, altitude, pilot conversations, and warning signals.

Transcript

00:00The black box investigators rely on isn't actually black, and it's not a box either.

00:04Let's take a closer look at what it entails.

00:07The black box has two parts, the flight data recorder which logs speed, altitude and engine

00:11details and the cockpit voice recorder which captures pilot conversations and cockpit sounds.

00:17Most aircraft crashes impact the front, which is why the black box is placed near the tail.

00:22In the Air India Crash 2, the tail section was largely intact and the black box was recovered.

00:27According to a retired Indian Air Force pilot and crash investigation expert, the black

00:31box reveals every switch flipped, every warning triggered and every word exchanged in the cockpit.

00:36The black box can withstand 3,400 G's of impact and 1,100 degree Celsius heat for an hour

00:42and is an underwater beacon that emits signals for 30 days.

00:45Once recovered, data is extracted through a process called data milking and compared with

00:49past flight records to identify irregularities.

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