A Black Box is an electronic recording device placed in an aircraft for the purpose of facilitating the investigation of an aircraft accident or incident, it is also called Flight Recorder.
Something that is orange in a plane crash would be drawing attention. Because it could be a black box flight. Well, Why black box color is orange?
Black box is a black thing, mean something that contains a mystery. Why the color orange? Therefore, the most conspicuous in the eyes. The color is camouflage.
Black Box/ Flight Recorder Aircraft
The orange color is a standard that has been established International Civil Association Organization (ICAO). Well, Black Boxes in each plane there are two kinds. Both consist of three parts.
The first is a box with a black box that connects the instrument to be recorded.
The second is where a tool box for the record are such as tapes, CDs, or chip. While the round is the Underwater Locator Beacon (ULB) to trace the signal when the plane crashed into the water.
Cockpit Voice Recorder (CVR) measuring 30 x 12.5 cm. This tool to record the pilot conversations, copilot, pilot with ATC, and the crew. While the other one named Flight Data Recorder (FDR) measuring 49 x 12.5 cm. This instrument records the aircraft technical data such as altitude, speed, engine speed, radar, auto pilot and others. There are 5 to 300 parameters of flight data recorded in this black box.
For the CVR recording duration is 30 minutes. That is a conversation every 30 minutes of data will be erased and replaced with new ones automatically. While FDR had a recording duration of up to 25-30 hours. This means that after 25-30 hours, the data will be erased by itself. CVR and FDR are automatically turns on when the engine is turned on.
The data obtained were then displayed in graphical form and the transcript of a conversation if that data. Then the data can be visualized with animation through software, one of them was named Insight View. Thus one might expect the position of the last plane before the crash.
CVR has 4 channels.
Channel 1 is connected to the loudspeakers commonly used flight attendants to passengers.
Chanel 2 of the cockpit,
chanel 3 of the pilot is connected to the air traffic controller (ATC),
and 4 recording channel around the cockpit (eg noisy machinery or rain).
In short CVR is a recorder which is connected to the audio system.
Well, if the black box is dropped into the sea, because there is ULB then the position can be detected. ULB is a transmitter that would emit an acoustic wave to facilitate detection.
Black box purposely designed to be waterproof, impact resistant and heat resistant. This thing can hold water up to 2 months. It can be heat up to 1,000 degrees, but in a limited time, not continuously thousand degrees. If the black box is damaged that means outside damage. Its memory did not.
Not just anyone can access the data black box. Even the pilot was not allowed to access it. So also with the authorities can not do it haphazardly. Also in the data reveal the black box, the researchers could not be bribed.
Appropriate procedures, aircraft accident investigation do not just rely on black box. Because Black box is man-made, it has the possibility that can not be analyzed.
- Black Box Aircraft Description.
In reading the black box, there are two that should be read ; in the cockpit voice recorder (CVR) and flight data recorder (FDR).
In short CVR is a recorder which is connected to the audio system. While FDR records aircraft sensors, such as altitude.