Airplane black boxes, explained
Sometimes flight recorders are the only way the victims' families will know what happened to the plane.
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Black box: Inside a flight data recorder (engineerguy)
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 Sundstr
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