VDR VS S-VDR

 THE REQUIREMENT OF VDR AS PER IMO

Ship Type	New ships built on or after 1 July 2002	Existing ships built before 1 July 2002
Passenger	VDR	VDR
Ro-Ro Passenger	VDR	VDR
Cargo Ships over 20,000 GT	VDR	S-VDR at 1st drydocking after 1 July 2006, but not later than 1 July 2009
Cargo Ships 3,000- 20,000 GT	VDR	S-VDR at 1st drydocking after 1 July 2007, but not later than 1 July 2010

DIFFERENCE IN DATA STORAGE OF VDR & S-VDR

VDR	S-VDR
• Date and Time (GPS) • Ship’s Position (GPS) • Speed (Speed Log) • Heading (Gyro Compass) • Bridge Audio & VHF Communications	• Date and Time (GPS) • Ship’s Position (GPS) • Speed (Speed Log) • Heading (Gyro Compass) • Bridge Audio & VHF Communications
• Radar Display Image	• Radar Display Image and/or AIS (can substitute AIS for Radar Display with class waiver)
• Water Depth (Echosounder) • Wind Speed and Wind Direction • Main alarms (as required by class) -Steering Alarms -Engine Alarms -Fire Detection Alarms • Rudder Order and Response • Heading Keeping Information • Engine Order and Response • Ship Control and Indication Statuses • Hull Openings, Watertight and Fire Door Status (if fitted) • Accelerations and Hull Stresses (if fitted