Sandhayak-class survey vessel (2023) explained

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Ship Image:INS Sandhayak (J18) during sea trials.jpg
Ship Caption:Sandhayak (J18) during sea trials
Builders:
  • Garden Reach Shipbuilders and Engineers
Total Ships Building:3
Total Ships Planned:4
Total Ships Active:1
Ship Type:Hydrographic survey ship
Ship Displacement:3300lk=onNaNlk=on
Ship Length:110m (360feet)
Ship Speed:18kn
Ship Range:
  • 6500nmi at to
Ship Complement:231
Ship Armament:CRN 91 naval gun
Ship Sensors:
  • Autonomous Underwater Vehicles (AUVs)
  • Survey Motor Boats (SMBs)
  • Remote Operated Vehicles (ROVs)
  • Multi Beam Echo Sounders
Ship Aircraft:1 × HAL Dhruv helicopter
Ship Aircraft Facilities:Helipad
The Sandhayak-class survey vessels are a series of four survey vessels being built by Garden Reach Shipbuilders and Engineers (GRSE), Kolkata for the Indian Navy. The first vessel was commissioned in 2021. The primary role of the vessels would be to conduct coastal and deep-water hydro-graphic survey of ports, navigational channels, Economic Exclusive Zones and collection of oceanographic data for defence. Their secondary role would be to perform search & rescue, ocean research and function as hospital ships for casualties.[1] [2] [3] [4]

History

In April 2016, the Indian Navy issued a request for proposal to six shipyards, four public and two private, for the construction of four large survey vessels. In September 2017, GRSE emerged as the lowest bidder with a bid of ₹2,435.15 crore, beating L&T Shipbuilding by ₹742 crore. The contract was awarded to GRSE by Ministry of Defence on 30 October 2018. The first ship is expected to be delivered within 36 months from the date of signing the contract.[5]

Design

The ships have a displacement of 3300t and a length of 110m (360feet). They have a cruising speed of 16knot with a maximum speed of and an operating range of 6500nmi at a speed of 14to. The ships have a complement of 231 and are equipped with hydrographic sensor equipment and a hangar which can accommodate one advanced light helicopter. In the secondary role, the ships can be fitted with a CRN 91 naval gun. In addition, the vessels will follow MARPOL (marine pollution) Standards of the International Maritime Organisation and will be built per Classification Society Rules and Naval Ship Regulations.[6]

Development

The keel of the first ship Sandhayak,named after its predecessor, was laid down on 8 November 2019 and launched on 5 December 2021. It was expected to be commissioned by 2023, the boat was commissioned on 3 February 2024.[7] [8] [9]

The second vessel of the class, Nirdeshak, was laid on 1 December 2020 and was subsequently launched on 26 May 2022.

The third ship, Ikshak, was laid down on 6 August 2021 and launched on 26 November 2022.[10] [11]

The fourth and the last ship, Sanshodhak, was laid down on 17 June 2022, and launched on 13 June, 2023.

Ships of the class

NameBuilderYard NoPennantLaid downLaunchedCommissionedHome-portStatus
GRSE3025J18 8 November 2019[12] 5 December 20213 February 2024[13] VisakhapatnamActive
3026J191 December 2020[14] 26 May 2022[15] 2024 (expected)On harbor trails[16]
Ikshak3027J236 August 202126 November 2022[17] 2025 (expected)Launched
Sanshodhak3028J2417 June 2022[18] 13 June 2023[19] 2025 (expected)

See also

Notes and References

  1. Web site: MOD signs contract with GRSE for supply of four survey vessels for Indian Navy. pib.nic.in. 2018-11-26.
  2. Web site: Indian MoD orders four survey ships from GRSE Jane's 360. www.janes.com. 2018-11-26.
  3. News: GRSE to build four survey vehicles for Indian Navy, contract inked. 2018-10-30. The Economic Times. 2018-11-26.
  4. Web site: GRSE to supply vessels to Indian Navy - NWI - Naval Warfare - Shephard Media. www.shephardmedia.com. en. 2018-11-26.
  5. Web site: Rs 2500 cr Indian Navy 4 vessel project bagged by Garden Reach Shipbuilders - The Financial Express. www.financialexpress.com. 2018-11-26.
  6. News: GRSE bags over Rs 2,000 crore contract to build 4 large survey vessels for Navy. 2018-10-30. Deccan Chronicle. 2018-11-26. en.
  7. INS Sandhayak, first Survey Vessel Large ship, commissioned into Indian Navy in the presence of Raksha Mantri in Visakhapatnam. PIB. 2024-02-03.
  8. First of the four ships under Survey Vessel (Large) project for Indian Navy launched in the presence of Raksha Rajya Mantri at GRSE, Kolkata . PIB . 2021-12-05.
  9. 1467495738791714823. indiannavy. Sandhayak and her three other sister ships are scheduled to be delivered between Oct 22 and Jan 24. 2021-12-05.
  10. Web site: 2021-08-06 . KEEL LAYING CEREMONY FOR 1st WARSHIP OF ASW SHALLOW WATER CRAFT PROJECT AND 3rd WARSHIP OF SURVEY VESSEL LARGE PROJECT . PIB.
  11. Web site: 2022-11-26 . GRSE launches 3rd Survey Vessel (Large) within a year . 2022-11-26 . en-US.
  12. OfficialGRSE. 1192733198821675010. Vice Admiral Ajay Kumar Saxena, PVSM, AVSM, VSM, Controller of Warship Production & Acquisition delivering his speech on the Keel Laying Ceremony of First Survey Vessel Large won on competitive bidding by GRSE. 2019-11-08.
  13. News: INS Sandhayak to be commissioned at Visakhapatnam on February 3. The Hindu. 2024-02-01.
  14. Web site: Mathew. Arun. GRSE Lays Keel for Second Survey Vessel (Large) for Indian Navy. 2020-12-01. DefPost. en-GB. 1 December 2020. https://web.archive.org/web/20201201122842/https://defpost.com/grse-lays-keel-for-second-survey-vessel-large-for-indian-navy/. dead.
  15. LAUNCH OF ‘NIRDESHAK’ (YARD 3026) SECOND VESSEL OF SURVEY VESSEL (LARGE) PROJECT . 2023-06-11 . Press Information Bureau.
  16. News: 21 March 2024 . GRSE Analyst meet-March 2024 .
  17. LAUNCH OF ‘IKSHAK’ THIRD SHIP OF SURVEY VESSEL (LARGE) PROJECT ON 26 NOV 22 AT L&T, KATTUPALLI . 2023-06-11 . Press Information Bureau.
  18. Web site: Keel laying ceremony of fourth ship of SVL and Second and third ships of ASW SWC . 2023-06-11 . pib.gov.in.
  19. LAUNCH OF ‘SANSHODHAK’, FOURTH SHIP OF SURVEY VESSEL (LARGE) PROJECT AT M/s L&T, KATTUPALLI ON 13 JUN 23 . 2023-06-13 . Press Information Bureau.

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