What is a black box?

Black box is a colloquial name for electronic flight recorder.

An instrument used to record the flight and performance parameters of an aircraft. It is not black, but orange and shaped like a streamlined shipping container.

The information recorded by the flight recorder can be used for flight accident analysis, and people can reproduce the process of the accident after processing according to the data and voice records recorded before the plane crash, and vividly analyze the cause of the accident.

The black box is divided into: the pilot's cockpit recorder and the flight data recorder.

The former records the conversation between the driver from after take-off to before landing. Tapes are fireproof, waterproof, and shockproof.

The latter records a variety of data while in flight.

The shell of the black box has a thick steel plate and many layers of thermal and anti-impact and compression protection materials, and is usually installed in the safest part of the tail of the aircraft.

Ahem, I always like to take an introduction before every time.

At 2:40 a.m. on March 8, 2014, Malaysia Airlines MH370 lost contact with the control center. Later, many countries began to look for the "black box" of the aircraft, so what exactly is the "black box"?

The "black box" refers to the flight recorder on the aircraft, which automatically records the altitude, speed, heading of the aircraft, the conversation in the cockpit 30 minutes before the plane crash, the sound of the engine and the alarm sound, etc.

The "black box" is not black, but orange, making it easy to spot. The box is not large, 5 inches wide, 9 feet long, and 15 inches high. The battery in the box can work continuously for 1 month, so that the annunciator constantly makes a "beep" sound.

The sound was clearly audible even from up to 5 miles underwater.

The casing is made of metal, which is extremely waterproof and can withstand 5,000 pounds of impact and withstand 30 minutes in a fire of 2,000 degrees Celsius.

Therefore, even if the plane is killed, the "black box" can be preserved intact, thus providing extremely valuable information for analyzing the cause of the plane crash.

That's it, do you understand?

Black box is a colloquial name for electronic flight recorder. An instrument used to record the flight and performance parameters of an aircraft. It is not black, but orange, and does not look like a box, but rather a streamlined container, and is a kind of sealed container the size of a normal drawer, 1 3 to 1 4.

The information recorded by the flight recorder can be used for flight accident analysis, and people can send it to a flight simulator after processing according to the data and voice records recorded before the plane crash, reproduce the process of the accident, and vividly analyze the cause of the accident.

"Black box" is the common name for flight recorder, which is installed on aircraft and is mainly used for aviation accident investigation, maintenance or flight tests. These include a flight data recorder (FDR) and a cockpit voice recorder (CVR), which are typically mounted in the tail of the aircraft. In 1953, Dr. David Warren of the Australian Research Laboratory invented the world's first "black box".

The black box is not black, not only is it not black, but the shell is painted a conspicuous orange-red color to make it easier for investigators to find. So why is it that as soon as the air crash happened, the public's attention was on the "black box", and the data in it was the key to cracking the entire air crash.

Air crashes are the main driving force behind the birth of the "black box". When an air crash occurs, only the "black box" data can provide investigators with information about the operation of the various systems before the accident. Many air crashes occur in a short period of time, and it is true that there is a lack of investigative information after the pilot and passengers are killed, which also brings great difficulties to investigate the cause of the air crash.

The "black box" can provide investigators with the flight data of the plane at the moment of the crash and some period of time before, and the voice data of the cockpit pilot. It helps investigators analyze the causes of accidents and makes correct accident conclusions.

In 1956, Warren did not get the attention of the Australian aviation industry when he made a prototype of a "black box" that could record four hours of voice and flight records. Eventually, with the help of British air controllers, the project continued. Warren and his team developed a practical "black box" and placed it in a sturdy box that was shockproof and fireproof.

Because when an air crash occurs, it is usually accompanied by a strong impact force and a fire caused by **, and these are the "natural enemies" of the recording data carrier. Dramatically, after a 1960 air crash in Queensland, Australia, Australia became the first country in the world to make it mandatory for all civilian and military aircraft to be fitted with a "black box". Subsequently, the "black box" also began to be popularized.