Flight data includes many parameters. First, the flight speed of the plane will be recorded. There are two kinds of flight data atmosphere: one is relative airspeed; One is the ground speed, which is the speed of the plane relative to the ground recorded by GPS. These two speeds can be used to calculate the wind speed and direction during flight.
It also records the flight angle of the aircraft, including heading angle and pitch angle. The heading angle is recorded by the directional gyroscope. When the plane turns or tilts to a certain angle, the gyro rotor will stabilize in one direction, and the heading scale on the instrument will indicate the turning angle of the plane. Pitch angle refers to whether the aircraft head is up or down during flight.
It also records the position of the elevator, the position of the rudder and so on. In addition, it will also record all kinds of operating instructions issued by the operator in the cockpit to the aircraft.
Therefore, after the plane crash, without more information, the black box is a very important data recording memory, and it is also one of the most important tasks besides searching for survivors. As a very important memory for recording data, black boxes are usually placed at the tail of aircraft. In case of an accident, the impact on the black box is relatively small. Moreover, in order to make the black box easier to find after the accident, the black box is usually painted with an eye-catching color, usually orange.
What is the name of the black box? Black box? The reason is that after the accident, many recorders were blackened by the fire at the scene of the accident, so they were called? Black? The box is actually orange red.
The two black boxes in this accident were knocked far away by the downward impact of the plane. Although they caused a mountain fire in the core area of the crash, they did not burn the black box and were still orange when they were found. But the appearance is seriously damaged. I hope that the data storage inside has not been destroyed, which can provide effective information for the identification of the cause of the accident.