Black box "flight recorder"

Black box "flight recorder"

It is an electronic recording device placed by plane for the purpose of facilitating the investigation in the case of aviation accidents and commits agreed international laws all commercial flights to carry two special registration information performance of the plane and the flight conditions during flight.



Black Box consists of two funds: -

1. The flight data recorder (FDR), a device that keeps the date of the trip by recording tens of determinants in the second and a single job preservation of digital data and physical values ​​(time, speed, direction).

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2. Vote recorder CVR wheelhouse including pilots talks and function of the record sounds (hassle, Astnejad, dialogues).

Both funds are equipped to broadcast diving erupt if the fund plunged into the water and launches a notice of ultrasound to help find them. This notification is broadcast on a frequency of 37.5 kHz and can be picked up at a depth of 3,500 meters (14,000 feet).

These Almsjlan Aattiyan Hhdat minutes about the history of flight after finding them after the disaster.

Many people believe that the Fund is the color "black" and this is a mistake, Cunha and orange or yellow so as to distinguish it easily from the wreckage. What remains uncertain why the label historically, it has some gold that was called black because of weather disasters and accidents, plane crashes. It is also called "flight recorder information." Another view back label that the first information itself recorders were opaque color and black on the inside to prevent the leakage of light to destroy the tape as in photography rooms. There is also another explanation for the cause of respect was to meet with the press and Dr. Warren Dr. Warren when he said his press :, "This is a wonderful black box" ie: It is a wonderful black box! .

Registration period: from 30 to 120 hours

Number of Channels: 4

Fire resistance: 1100 ° C / 1 hour (which is the degree of burning kerosene)

Resist water pressure: 5,000 meters (20,000 feet)

Batteries: 6 years

The duration of the information: long (store information on a magnetic or flash memory bar)

Experiment was conducted by firing a shell at the 3400 Fund strongly Newton was not affected

Bear the weight of the metal drop weighs 230 kg above the height of 3.5 meters