Here’s an interesting YouTube video, showing the inside of a flight data recorder, more commonly known as a “black box.”
Bill opens up a vintage “black box” from a Delta airlines jetliner. He describes how the box withstands high temperatures and crash velocities because it is made from Inconel: A superalloy steels that is used in furnaces and others extreme environments. The flight data recorder he shows is a Sundstrand FA-542 and was likely used on a DC-9 in the 1970s, although it could have been used as late as 1988 on a Boeing 727.
To be honest, I haven’t though much behind the technology of these crucial devices, but it’s interesting to see how they can withstand pressure and survive underwater. Take a peek inside!
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