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Defence & Security
Mahesh

27/05/22 08:17 AM IST

NIRDESHAK

In News 
  • ‘Nirdeshak, the second of the four Survey Vessels (Large) (SVL) Project being built by GRSE in collaboration with L&T shipbuilding for Indian Navy was launched on 26 May 22 at Kattupalli, Chennai.
Features 
  • The ship has taken its name from erstwhile Nirdeshak which was also an Indian Naval Survey ship and was decommissioned after 32 years of glorious service in Dec 2014.
  • The first of class ship ‘Sandhayak’ was launched on 05 Dec 21 at GRSE, Kolkata.
  • The ship is designed to operate at a cruise speed of 14 knots and a maximum speed of 18 knots.
  • Bow and Stern Thrusters have been catered for better manoeuvring at low speeds required during shallow water survey operations.
  • The hull of these ships is made from indigenously developed DMR 249-A steel manufactured by Steel Authority of India Limited.
Significance 
  • With the capability to carry four Survey Motor Boats and an integral helicopter, the primary role of the ships would be to undertake full scale coastal and deep-water hydrographic surveys of Ports and navigational channels.
  • The ships would also be deployed for collecting oceanographic and geophysical data for defence as well as civil applications.
  • In their secondary role, the ships are capable of providing limited defence, besides serving as Hospital ships during emergencies. 
About SVLs 
  • The SVL ships will replace the existing Sandhayak Class survey ships with new generation hydrographic equipment to collect oceanographic data.
  • The Survey Vessel (Large) ships have a deep displacement of about 3400 tons and a complement of 235 personnel.
  • Part construction of three out of four ships of SVL is being undertaken at L&T, Kattupalli as part of a collaborative approach between GRSE and L&T shipbuilding. 
Source-PIB

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