Black Box

• 14 Dec 2021

The Cockpit Voice Recorder (CVR) and Flight Data Recorder (FDR) has been recovered from recently crashed Mi-17V5 chopper of the Indian Air Force.

Black Box

• It is a compressor shaped electronic device placed in aircraft.
• It is mandatory for commercial airliner and armed forces.
• It is kept at the back side of the aircraft for the security point of view.
• Invented by- Australian scientist David Warren in 1950.

Purpose

• To ascertain the cause of the crash of aircraft.
• To preserve clues from cockpit sounds and data to help prevent future accidents.

The Black Box has two separate boxes:

Flight Data Recorder

• It contains information about direction, altitude, fuel, speed, turbulence, cabin temperature.
• It can withstand a temperature of about 11000°C for one hour and a temperature of 260°C for 10 hours.

Cockpit Voice Recorder

• It records the sound of engine, emergency alarm, cabin and cockpit in order to predict the conditions of the plane before any accident occurred.