What color is the black box on the plane? Thank you, everyone.

Black box is usually bright orange "Black box" is one of the special electronic recording equipment for aircraft, and its real name is aviation flight recorder. It is equipped with flight data recorder and cabin sound recorder, and all mechanical parts and electronic instruments of the aircraft are equipped with sensors to connect with them, just like nerves in all parts of the human body communicate with the brain. It can record the relevant technical parameters and cockpit sound half an hour before the plane stops working or crashes, and release the recorded parameters again when necessary for flight experiments and accident analysis. The black box has strong fire resistance, pressure resistance, shock and vibration resistance, seawater (or kerosene) immersion resistance and magnetic interference resistance. Even if the plane is completely damaged, the data recorded in the black box can be well preserved. The causes of all air crashes in the world are found through black boxes, so it has become a witness to the accident and a "lesson from the past" to avoid the same accidents and take better safety measures. At present, there are two types of black boxes installed on most passenger planes and military aircraft. One is a black box called Aircraft Data Recorder (FDR), which records various data in flight, such as flight time, speed, altitude, aircraft rudder deflection, engine speed, temperature and so on. * * * There are more than 30 kinds of data that can be recorded for 25 hours. Before take-off, as long as the switch of the black box is turned on, all the above data will be included in the black box during the flight. Once an air crash happens, the flight parameters of the whole accident process can be found in the black box, and people can know the cause of the plane crash. Another kind of black box (CVR), called the pilot language recorder, is just like a tape recorder. It records the voices of pilots and passengers, hijackers and flight attendants in the cockpit through loudspeakers placed in the cockpit. It records for 30 minutes, and will start recording again after 30 minutes. So this black box records the important information in the plane 30 minutes before the air crash. With the rapid development of science and technology, black boxes are constantly updated. The black box (FDR), which came out in 1960s, can only record five parameters, with a large error. Since 1970s, digital recording tape has been used, which can record more than 100 parameters and save the flight data of the last 25 hours. After 1990s, integrated circuit memory appeared, which can record 2 hours of CVR sound and 25 hours of FDR flight data, just like the memory chip in a computer, greatly improving the accuracy of air crash analysis. Answer: 2007-06- 16 08:58 Questioner's evaluation of the answer: * * 0 comments ... Other answers * * 1 comments ┆ Although the black box reporting Sun Yihao [Zixing] is called "black box", the aviation recorder is actually painted bright orange. This bright and conspicuous color and the reflective tape outside the recorder enable accident investigators to find the recorder quickly after the plane crashes, especially when it falls on the water. There are three possibilities for the origin of the name "black box": one thinks that the early recorders were black; The other is formed by blackening after the plane crash. There is another kind, perhaps because people think that the things stored in it are of great significance to the identification of aircraft accidents and are really mysterious, so they have given it such an equally mysterious name-"black box".