Firstly, the structural design of the black box is extremely sturdy. Modern black boxes are usually made of titanium alloy or stainless steel, with the shell capable of withstanding tremendous impact forces. According to the International Civil Aviation Organization (ICAO) regulations, the black box must be able to withstand the impact force equivalent to that of a 3.4-ton weight, which is equivalent to the impact the aircraft would experience during a high-speed crash. In addition, it can withstand temperatures of up to 1100°C for 30 minutes without damage, ensuring that data can be preserved during fire or explosion accidents.

Secondly, to improve the success rate of searching underwater, the black box is also equipped with an underwater positioning beacon (ULB). Once the black box comes into contact with water, this device will automatically activate and emit a 37.5kHz pulse signal, which can last for more than 30 days. This signal can be detected by special sonar equipment, helping search personnel to determine the location of the black box.

In addition, with the development of science and technology, an increasing number of modern aircraft are beginning to adopt

In general, the survival of the black box in disasters is the result of its sturdy structure, fire-resistant and high-temperature-resistant design, underwater positioning function, and reasonable installation location. Its existence not only provides key clues for accident investigation but also provides an important basis for the continuous improvement of aviation safety. In the future, with the continuous advancement of technology, we have every reason to believe that the black box and its related technologies will become more intelligent and efficient, safeguarding aviation safety.