According to information published by the Indian Ministry of Defence on December 5, 2021, Sandhayak, the first of the four Survey Vessels (Large) project being built for the Indian Navy, was launched in Kolkata on December 05, 2021. These vessels have been designed and developed by Defence Public Sector Undertaking, Garden Reach Shipbuilders and Engineers (GRSE) Limited, which is among the leading warship building companies in India.
Follow Navy Recognition on Google News at this link
Survey Vessel Sandhayak in Kolkata, India (Picture source: Twitter account of Indian Navy)
These survey ships are capable of full scale coastal & deep-water hydrographic survey of Ports & Harbour approaches and determination of navigational channels & routes. These ships are also capable of undertaking survey of maritime limits and collection of Oceanographic & Geographical data for Defence applications, thus boosting the maritime capabilities of the country.
These ships are propelled by two Marine Diesel Engines combined with Fixed Pitch Propellers and fitted with Bow & Stern Thrusters for manoeuvring at low speeds during surveys. In their secondary role, these ships would be capable of performing roles such as Search & Rescue and Disaster Relief, besides serving as Hospital ship with limited facilities during emergencies. The ships will have a retractable Hangar for stowage of a Utility helicopter.
The contract for building four survey ships was signed between MoD and GRSE on 30 Oct 18 at a total cost of Rs 2435 Crs. The ships are fully designed by the Design team of GRSE to meet the requirements of the Indian Navy and are being built utilising the concepts of "Integrated Construction" and in compliance with applicable provisions and regulations of the Classification Society.
It has over 80 per cent indigenous content by cost and this will also ensure that large scale defence production is executed by Indian manufacturing units, thereby generating employment and expertise within the country.
As per the build strategy adopted by GRSE, the first ship is being built at GRSE Ltd and the construction of the balance of three ships is envisaged at M/s L&T Shipbuilding, Kattupalli.
The erstwhile Sandhayak incidentally was also launched at GRSE, Kolkata 44 years ago on 06 Apr 1977.
