You’ve probably heard about the Black Box somewhere, right?
After the plane crashed, the first thing that the rescue team did was to find the victims, next, another very important thing was to find the black box of that plane.
Because the black box is found then people will know what happened before the accident. So what is a black box? and what does it contain that one can decipher what happened before the accident?
#first. What is a black box?
Simply put, a black box is a specially designed recording device.
The black box will record all information of the aircraft during its operation, the information will automatically save every few seconds.
Each aircraft will have 2 black boxes, one black box records information (recording) of the cockpit, and the other black box will record flight information (pilot itinerary).
Therefore, finding the black box also means that we will be able to investigate information about that plane before it crashes and breaks into pieces.
#2. What information does the black box record?
The black box will record 2 main types of information.
The first are the sounds in the cockpit, the most important of which are the conversations of the pilots. Simply because the pilot is the one in control of the plane, so if there is a problem in the plane, they will talk to each other.
Through these conversations, one can analyze/visualize how things were going at that time.
In the cockpit of the plane, people have installed recording microphones. This microphone will capture all the sounds in the cockpit and be stored in the black box.
Second information in the black box are the parameters of that aircraft (pilot flight).
The aircraft’s black box contains more than 20 parameters, including those showing the operating status of the most important components, affecting the operation of the aircraft.
For example: fuel condition, engine condition, altitude of the plane, outside pressure, speed of the plane, its course, etc. This information is collected by sensors (installed throughout the machine). fly) recorded and continuously recorded in the black box.
Thus, it is clear that the black box is very important, it is the key to knowing the cause of the plane crash. And it is also a document to draw lessons from, to prevent problems for other flights in the future.
However, the analysis of the black box is not simple, it takes very good experts to decipher it. According to the information I have learned, only a few countries at a high level are capable of analyzing black boxes, currently Vietnam has not been able to do this.
#3. So what’s so special about the black box? And how does it work?
Once the plane crashed, the possibility of survival of the passengers was extremely low, not only that, everything was burned or crashed into the sea, so the search was extremely difficult.
So the black box will need to be designed in a very special way. It is the ability to withstand high temperatures, withstand impacts and be easily found when dropped into the sea…
What color is the plane black box?
The size of the black box is usually 20 x 20 x 30cm, weighs about 4.5kg. Of course, depending on the manufacturer, the size will be slightly different.
The color of the black box is not as black as its name suggests, but it has a striking yellow-orange color. The name black box originates from the past, previously the black box was true black, but over time, people changed the color for this box.
Structure of the black box?
The design of the black box consists of 4 main parts, which are: the frame/case (covering the device), the underwater transmitter, the core made of stainless steel or the Titanand finally the memory chips attached to the circuit boards to store data.
How do people look for black boxes?
In the event that the plane crashes on land and catches on fire, the black box will be safer, as it can withstand temperatures up to 1,100oC for 30 minutes.
If the plane falls into the sea and sinks to the bottom of the ocean, the water sensor of the black box will recognize and activate the transmitter of the black box. Every 1 second, the transmitter transmits a frequency of 37.5 KHZ within a radius of 22km (sounds like a Ping Ping).
With this frequency, the receivers on the ship can receive the signal and detect the location of the black box.
How long do airplane black boxes last?
And for the convenience of the search, the battery of the black box can work within 30 days, if it is beyond the above time and it is not found, it is really difficult.
Where is the aircraft black box installed on the plane?
Designed to withstand impact, the black box case is also very hard, it can withstand tremendous force without affecting the data inside. And for added peace of mind, the black box is often installed in the tail of the aircraft to reduce the impact force when the plane crashes and explodes.
With such a special design, the price of a black box is not comfortable at all, it costs up to more than 20,000 USD, which is half a billion Vietnam dong, friends 😀
Do cars have a black box?
You may not have noticed that cars are also equipped with black boxes, especially those of transport businesses, thanks to the black box, the owner can track the location of the vehicle, as well as the condition of the vehicle. and also to help experts analyze the accident.
Okay, above is the information about the black box that I have found. I believe you have understood through this article what the aircaft black box then isn’t it?
In addition to the information contained in the article, if you know any other interesting information about airplane black box Don’t forget to share it in the comments section below. Don’t forget to share the article if you like it
CTV: Dinh Tung – Blogchiasekienthuc.com
Edit by Kien Nguyen
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