The plane is regarded as the safest form of transport, yet every calamity due to the high number of passengers one too many. To analyze the events prior to the accident exactly, in 1957 the first flight data recorder was invented. This system continued through quickly, and so today every commercial aircraft equipped with such a device.
The flight data recorder is usually in the rear or in the middle of the aircraft, as this area is destroyed by accidents at the least. The flight data recorder is also packed for sure: The box in which it is located, up to 6000 meters water-proof and can withstand temperatures of more than 1,000 degrees Celsius, without prejudice, if it is not that more than half an hour will be suspended.
The flight data recorder is only one component of the "black box": The second element, there is a voice recorder, which continuously records the last 30 minutes of cockpit conversations and on radio. The data recorder records the self-important flight data such as altitude, speed, heading, flap positions and engine numbers. This gives a precise picture emerges about the state of the aircraft before the accident, allowing the conclusions to the cause. These findings are important for the development of the aircraft and the safety standards of major importance.
The flight data recorder is equipped with a transmitter so that it can be located after an accident too. The analysis may take some time because there are few laboratories worldwide that are set up for it. Often this great care is necessary because the black box has been damaged despite all safety measures.
In the future, a new system in planning: There is not always possible to recover the flight data recorder to the operation of the aircraft will transfer the relevant data via satellite to the headquarters of the airline. This keeps the data on each case, the subsequent analysis is facilitated and can be carried out promptly.