GRSE-class survey vessel

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Sandhayak (J18) during its launch ceremony.jpg
Sandhayak (J18) during its launch ceremony
Class overview
BuildersGarden Reach Shipbuilders and Engineers
Operators Indian Navy
Preceded by Sandhayak class
Planned4
Building4
General characteristics
TypeHydrographic survey ship
Displacement3,300 tonnes (3,248 long tons)
Length110 m (360 ft 11 in)
Speed18 knots (33 km/h; 21 mph)
Range6,500 nmi (12,000 km; 7,500 mi) at 14 knots (26 km/h; 16 mph) to 16 knots (30 km/h; 18 mph)
Complement231
Sensors and
processing systems
  • Autonomous Underwater Vehicles (AUVs)
  • Remote Operated Vehicles (ROVs)
  • Multi Beam Echo Sounders
ArmamentCRN 91 naval gun
Aircraft carried1 × HAL Chetak helicopter
Aviation facilitiesHelipad

The GRSE-class survey vessels are a series of four survey vessels planned to be built by Garden Reach Shipbuilders and Engineers (GRSE), Kolkata for the Indian Navy. The first vessel is expected to be commissioned by 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.[1][2][5]

The third ship was laid down on 6 August 2021.[6]

The first ship Sandhayak named after its predecessor Sandhayak was launched on 5 December 2021. Its is expected to be commissioned by October 2022.[7][8]

Design[]

The ships have a displacement of 3,300 tonnes (3,248 long tons) and a length of 110 metres (360 ft 11 in). They have a cruising speed of 16 knots (30 km/h; 18 mph) with a maximum speed of 18 knots (33 km/h; 21 mph) and an operating range of 6,500 nautical miles (12,000 km; 7,500 mi) at a speed of 14 to 16 knots (26 to 30 km/h; 16 to 18 mph). 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.[1][5][9]

Ships of the class[]

Name Yard No Pennant Laid down Launched Commissioned Home-port Status
Sandhayak 3025 J18 8 November 2019[10] 5 December 2021[7] October 2022 (expected)[8] Under construction
3026 1 December 2020[11] December 2022(expected)[12] Under construction[13]
3027 6 August 2021[6] Under construction[14]
3028 Under construction[15]

See also[]

References[]

  1. ^ a b c "MOD signs contract with GRSE for supply of four survey vessels for Indian Navy". pib.nic.in. Retrieved 26 November 2018.
  2. ^ a b "Indian MoD orders four survey ships from GRSE | Jane's 360". www.janes.com. Retrieved 26 November 2018.
  3. ^ "GRSE to build four survey vehicles for Indian Navy, contract inked". The Economic Times. 30 October 2018. Retrieved 26 November 2018.
  4. ^ "GRSE to supply vessels to Indian Navy - NWI - Naval Warfare - Shephard Media". www.shephardmedia.com. Retrieved 26 November 2018.
  5. ^ a b "Rs 2500 cr Indian Navy 4 vessel project bagged by Garden Reach Shipbuilders - The Financial Express". www.financialexpress.com. Retrieved 26 November 2018.
  6. ^ a b "KEEL LAYING CEREMONY FOR 1st WARSHIP OF ASW SHALLOW WATER CRAFT PROJECT AND 3rd WARSHIP OF SURVEY VESSEL LARGE PROJECT". PIB. 6 August 2021.
  7. ^ a b "First of the four ships under Survey Vessel (Large) project for Indian Navy launched in the presence of Raksha Rajya Mantri at GRSE, Kolkata" (Press release). PIB. 5 December 2021.
  8. ^ a b @indiannavy (5 December 2021). "Sandhayak and her three other sister ships are scheduled to be delivered between Oct 22 and Jan 24" (Tweet) – via Twitter.
  9. ^ "GRSE bags over Rs 2,000 crore contract to build 4 large survey vessels for Navy". Deccan Chronicle. 30 October 2018. Retrieved 26 November 2018.
  10. ^ @OfficialGRSE (8 November 2019). "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" (Tweet) – via Twitter.
  11. ^ Mathew, Arun. "GRSE Lays Keel for Second Survey Vessel (Large) for Indian Navy". DefPost. Retrieved 1 December 2020.
  12. ^ "GRSE-ICIC security". GRSE. Retrieved 5 June 2021.
  13. ^ "Annual Report 2019-20" (PDF). GRSE. Retrieved 25 September 2020.
  14. ^ @OfficialGRSE (16 November 2020). "Production of Survey Vessel(Large),Yard 3027, has commenced today" (Tweet) – via Twitter.
  15. ^ @OfficialGRSE (1 February 2021). "Production of 4th and last in the series of 04 Survey Vessel (Large), Yard 3028 has commenced today" (Tweet) – via Twitter.
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