8/10/2019 Does a Ship Also Has a Black Box

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Does A Ship Also Has A Black Box?written by: sriram balu edited by: Lamar Stonecypher updated: 7/31/2009

We all know about the Black Box of an aircraft and its use. Have you ever wondered what a ship has? or why it is necessary for a

ship to have one? Read here to know about the Maritime Black Box or the Voyae !ata Recorder"V!R.

Introduction

We all know about the #Black Box$ which is used in aircraft. %t is a very important component in an aircraft as it tells the tale of

what happened inside the aircraft which lead to any machinery failure or any communication system failure& which ultimately

led to the crash. 'imilarly ships also have a #Black Box$ installed in them. %t is called as #V!R$ or the #Voyae !ata Recorder.$ %t

is also called as MBB& #Maritime Black Box. %n this article& let us discuss about the reulations& functions and uses of V!R(s.

What is a VDR?

V!R is the acronym for Voyae !ata Recorder.

)s per the %M*(s %nternational convention& '*+)' re,uirement is that every ship must have a V!R located in suitable enclosure&

capable of data storae and retrieval when ever re,uired. ) V!R is an electronic e,uipment stored in a suitable enclosure which

can be either externally located protective storae unit or may be in a retrievable -xed unit or may be of free oatin type and

sometimes combined with the /0%RB. Various data involvin numerous e,uipments onboard ship is connected to the V!R with

the help of sensors. 1he V!R collects all these data and stores them in the protective storae unit& after convertin its format

and reducin its actual si2e by compressin. 1his protective storae unit is usually tamperproof specially desined to withstand

marine atmospheres of heavy sea& storm& -re& collision& explosion& shock& and it will be safe even if the ship sinks.

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*ne miht ,uestion about the memory capacity of V!R. %t is very essential to note that it has the capability to store data which

was collected in the last 67 hours considerin any iven point of time. 1he stored data can be easily transferred to a normal 08

9personal computer: or even a +aptop and viewed for further investiations. 'hip owners and other authori2ed authorities can

retrieve& recover and replay the stored data sometimes for even monitorin performances or e;ciency& weather conditions and

damae investiations& collision avoidance and for trainin purpose too. 1hese data may be used for impartin trainin with the

motive of improvin the safety standards and some may use with permission for research prorams too. +atest systems may

even record bride happenins and voices for investiation if some mishap happens due to communication barriers.

Data stored in VDR

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) V!R stores wide variety of data& everythin necessary for an investiation of any situation which hinders the safety of the ship

or crew or the environment. 1he data stored are as follows