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Facts for Prelims (FFP)


Source: PIB


Context: The first of four Survey Vessel (Large) ships, Sandhayak, constructed at Garden Reach Shipbuilders & Engineers (GRSE) in Kolkata, was delivered to the Indian Navy.

PurposeIntended for full-scale coastal and deep-water hydrographic surveys of port and harbour approaches, determining navigational channels and routes.
Zone of OperationThe zone of operation includes maritime limits up to the Exclusive Economic Zone (EEZ) and the extended continental shelf.
Data CollectionThe ships have the capability to collect oceanographic and geophysical data for defence and civil applications.
Hydrographic EquipmentEquipped with advanced hydrographic equipment, including: – Data Acquisition and Processing System – Autonomous Underwater Vehicle – Remotely Operated Vehicle – DGPS Long-range positioning systems – Digital side-scan sonar
PropulsionPropelled by two diesel engines.
SpeedCapable of achieving speeds exceeding 18 knots.
Indigenous ContentThe ship boasts over 80% indigenous content by cost.
Aatma Nirbhar Bharat CommitmentThe delivery of Sandhayak highlights the commitment of the Indian government and navy to ‘Aatma Nirbhar Bharat’ (Self-reliant India).