Why is the plane’s “black box” not black, but orange?
In plane crashes, people often refer to devices called black boxes. This is a place to store information that can help reveal the cause of the plane crash. In fact, despite the name black box, this device is orange.
what the aircaft black box?
The aircraft black box is a device that stores flight information. It is orange and measures about 20x30cm.
If the flight is safe, the data in the black box will help the pilots learn from the recorded journey. However, when the plane unfortunately has problems, the black box will be the first thing people look for.
The black box can store information about the last 2 hours of a flight. Each black box is made up of two devices: a flight data recorder (FDR) and a cockpit voice recorder (CVR). These two components are required on any commercial flight and are usually located in the tail section of the plane, where the odds of “survival” are highest in the event of an accident.
FDR is used to record information such as wind speed, altitude or fuel flow. Early versions of FDR used wires to encode data, while later versions used solid-state memory boards.
The special feature of the aircraft’s black box is that it can withstand temperatures as high as 1,100 degrees Celsius for 30 minutes continuously and submerged for 30 days in water at a depth of up to 6,100 meters. During that time, the device will emit ultrasonic waves once a second and continue until the power is exhausted. When the plane falls into the sea, people will use the hydroacoustic navigation system installed on submarines, rescue ships, … to detect and detect the black box before it completely loses its signal.
The name is Black Box but it’s orange
Black box is the name given by the user, but until now, no one knows the origin of this name. According to some, the name “black box” may come from the important data it collects and stores inside.
According to ABC News, orange is one of the three most commonly used colors in the aviation industry. The black box is designed in orange color so that the search team can easily detect the device in the surrounding environment, when the plane is unfortunately in trouble.
Normally when a black box is found, the investigating agency will immediately analyze the recordings and data inside to find out the cause behind the incident. This process takes about 2 to 3 days. However, only a few countries have the technology to do this, including the US, Canada, Australia, UK and France.
It is very rare that an aircraft’s black box is destroyed or not found. So far, there have only been two cases where the black box could not be found, the missing MH370 in 2014 and the two terrorist planes that crashed into the World Trade Center in New York in 2001.
By Business and Marketing
at Blogtuan.info – Source: cafebiz.vn – Read the original article here