ByDivyesh Mistry

14ME63R02

BLACK BOX

Contents

Black Box Working Construction Uses Drawbacks Beyond Black Box References

Black Box The original black box was designed by

David Warren. In 1953, Warren came up with the idea of

an onboard flight-data recorder.

Black Box It is a  Flight Data Recorder. It record's specific aircraft performance

parameters and conversations in the cockpit.

Cockpit or Flight Deck

Black Box

The Exterior of the FDR is coated with heat-resistant Bright Red paint.

Black Box

There are two Black-Boxes Flight Data Recorder & Cockpit Voice Recorder.

Memory Boards

MAGNETIC TAPE RECORDER SOLID STATE RECORDER

Introduced in the 1960s

It can track about 100 parameters.

Magnetic-Tape CVRs store the last 30 minutes of sound.

Introduced in the 1990s

It can track more than 700 parameters in larger aircraft.

CVRs that used solid-state storage can record 2 hours of audio.

Memory Boards

MAGNETIC TAPE RECORDER SOLID STATE RECORDER

Black Box

Time Pressure altitude Airspeed Vertical acceleration Magnetic heading Control-column position Rudder-pedal position Control-wheel position Horizontal stabilizer Fuel flow

Few parameters recorded by most FDRs:

Black Box The unit is usually mounted in the

aircraft's empennage (tail section).

Black Box

These recording devices cost between $10,000 to $15,000 each.

Both Black Boxes are powered by one of two power generators that draw their power from the plane's engines.

The Memory boards have enough digital storage space to accommodate 2 hours of Audio data for CVRs and 25 hours of Flight data for FDRs.

Built to Survive[Construction]

In Airline accidents, the only devices that survive are the CSMU.

CSMU Three layers of

materials in CSMU:Aluminum

housing(0.25 inch)High-temperature

insulation (1 inch)Stainless-steel shell

(0.5 inch)

Testing Of CSMU

Crash ImpactPin DropStatic CrushFire Test Deep sea Submersion Salt water SubmersionFluid Immersion

Working of Black Box

Underwater Locator Beacon (ULB) Submergence sensor on the side of the beacon. Pulses at 37.5 kilohertz (kHz). sound as deep as 14,000 feet (4,267 m). Once the beacon begins "pinging," it pings once per second for 30 days.

Working of Black Box

Retrieving Information This portable interface can allow investigators quick access to the data on a black box.. Retrieval of FDR Retrieval of CVR Once the beacon begins "pinging," it pings once per second for 30 days.

Use of BlackBox

Retrieval comes first. Help identify the reasons for a plane

crash.“Mistakes are a great educator when one is honest enough to admit them and willing to learn from them”

This black box alone was left to tell the story of the crash of Egypt Air Flight 990.

The cockpit voice recorder from the downed Alaska Airlines Flight 261

Drawbacks

List of unrecovered flight recorders

The

Glass Box

References http://www.howstuffworks.com/gadgets/other-gadgets/blac

k-box.htm.

http://spectrum.ieee.org/aerospace/aviation/beyond-the-black-box.

http://news.discovery.com/tech/beyond-the-black-box.html.

Barrett, Brian. "The Secret Sauce of an Airplane's Black Box." Gizmodo. Jan. 10, 2011. (March 6, 2014) http://gizmodo.com/5729507/the-secret-sauce-of-airplanes- black-box .

http://en.wikipedia.org/wiki/Emergency_Position_Indicating_Radio_Beacon.

http://anonymouse.org/cgi-bin/anon-www.cgi/http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgTSO.nsf/0/e040550c3ab32300862572c200113975/$FILE/TSO-C124b.pdf.

Queries

Be Brave to Express yourself