 Introduction
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| VDR is a situation recorder for vessels and performs much like a plane's "black box". While black box installation on airplanes is required by international mandate, vessels, for the most part, are not equipped with a similar type of recording device, nor are they required to.In recent years, maritime regulatory committees, such as the International Maritime Organization(IMO), have become aggressive advocates of the mandatory use of VDR. Maritime organizations all around the world are currently devising an international regulation scheme that would make VDR installation mandatory for all ocean vessels. |
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VDR Recording Data
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Mandatory Recording Data from IMO/Res A.861(20), IEC61996
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1. Date and time
2. Ship’s position
3. Speed (water and/or ground)
4. Heading (true or magnetic)
5. Bridge audio
6. Communication audio (VHF)
7. Radar data (including image)
8. Depth (echo sounder)
9. Main alarms
10. Rudder order/response
11. Engine order/response
12. Watertight and fire door status
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Conditional Recording Data from IMO/Res A.861(20)
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1. Hull openings status, where Ro-Ro passenger
2. Accelerations and hull stress, where fitted
3. Wind speed and direction (relative/true), where fitted
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Carriage Requirements (from MSC72 & MSC73)
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| Ship |
Constructed date |
Carriage deadline |
| Before 1 July 2002 |
On/after 1 July 2002 |
Constructed date |
First annual survey after 1 July 2002 |
1 Jan. 2004 |
| International Voyage ships |
Passenger ships |
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| Existing ro-ro passenger ships |
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| Existing passenger ships other than ro-ro passenger |
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| Over 3000GT ships |
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Regulatory Specifications
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*IMO A.861(20)
*RTCA/DO-178B Level C
*IEC 61996
*IEC 60956
*IEC 68-2-27 part2
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