The document summarizes information about flight data recorders and cockpit voice recorders, commonly known as the "black box". It discusses the history of black boxes, how they work, and what they record. Flight data recorders track parameters like time, pressure, airspeed and engine functions. Cockpit voice recorders have microphones to record sound in the cockpit, including conversations between pilots and air traffic control. Black boxes are designed to survive crashes and help investigators determine the causes of accidents.

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2. CONTENT:
• Introduction
• History
• Inside The Black Box
Flight Data Recorder
Cockpit Voice Recorders
● Technology used for Recording and Storage
● Built To Survive
● Conclusion
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3. INTRODUCTION
The Black Box is a flight recorder used to record specific aircraft
performance parameters.
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4. HISTORY
The first prototype FDR was produced in 1956
by Dr. David Warren of the then Aeronautical
Research Laboratories of Melbourne, Australia
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5. INSIDE THE BLACK BOX :
• Flight Data Recorder (FDR)
• Cockpit Voice Recorder (CVR)
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6. Flight Data Recorders
The Flight data recorder (FDR) is designed to record the
operating data from the plane's systems.
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7. Parameters Recorded By Most FDRs:
• Time
• Pressure altitude
• Airspeed
• Vertical acceleration
• Magnetic heading
• Control-column position
• Rudder-pedal position
• Control-wheel position
• Horizontal stabilizer
• Fuel flow
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8. Cockpit Voice
Recorders:
CVR is designed to track the conversations of the flight crew.
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•The main purpose of the CVR unsurprisingly, to record
sounds that occur within the cockpit
•CVR communicate between the crew and ground control and
other aircraft
Cockpit Voice Recorders:

10. The Positions Of The Four Microphones:
• Pilot's headset
• Co-pilot's headset
• Headset of a third crew member (if there is a third crew
member)
• Near the center of the cockpit, where it can pick up audio
alerts and other sounds
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•visualise how a plane was handling shortly before a crash.
•To help investigators find how crash the aircraft
•able to operate between -55° to +70°C and it can carries a minimum 25 hours
of flight data.
•The device is activated as soon as the recorder comes into contact with water
to it known as an Underwater Locator Beacon (ULB
ADVANTAGES

12. CONCLUSION:
From the study of Black Box we derived a information
that how the information about aircraft mishap is
analyzed & unanswered question is answered.
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REFWRENCES

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