The safest part of the plane is the so-called “tail”, as a result, the black boxes are always installed in the back part of the plane and they help to identify the causes of plane crashes. These boxes are called black because of the confidential information they hold within them. The boxes act as a tape recorder and store all the information on the aircraft. The technology of black boxes used today is probably the most reliable way to gather and store information.
Probably, many people have seen that the black boxes are painted in very bright orange color. Orange is very visible, and it stands out from all other colors. The orange object stands out immediately in any environment. They are called black boxes not because of the color black, but because of what is hiding inside. Until the professionals open it, collect, and analyze the information, everything is unknown. The unknown information is the blackness of that box. Black boxes are designed for particularly extreme conditions to withstand any damages of temperature, mechanical, or chemical effects.
There are usually two black boxes on an aircraft. These are two tape recorders that store all the information related to the flight. As intended, one of these black boxes records crew conversations and sounds of the pilot cabin. Another black box collects the technical flight parameters of the aircraft: aircraft speed, altitude, direction of flight. It also collects system parameters: fuel consumption, temperature, and similar information.
Information and Analysis
In the case of a plane crash, in the absence of other objective sources of information, black boxes are the only source of information that makes it possible to understand the causes of a plane crash. The analysis can only be performed by specialists. This is a very complex and difficult device. Only when experts determine the degree of damage to a box after a disaster can it be opened, and information can be safely typed into a computer. This requires sophisticated laboratory equipment, relevant knowledge, and experience.
The duration of a black box study depends on many factors. First of all, depending on the degree of damage to the boxes themselves, how quickly we will be able to extract information from the box. The material is further analyzed. As a result, predicting how long the study may take is very difficult.
The black boxes are working continuously on any aircraft and record all the information without interruption throughout the flight. The recorders of flight crew conversation and cockpit voice recorder are required to record the last two hours of flight, and the flight data recorder shall record information up to 25 flight hours according to the current standards. Information is recorded continuously, without interruptions. If the flight lasts for 26 hours, the first and 26th hours are written on top. It is an ongoing process. And the amount of information depends on the specific aircraft, the amount of information might be in megabytes (MB) or gigabytes (GB).