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Class overview
Name	Seaward class
Builders	Garden Reach Shipbuilders and Engineers
Operators	Indian Navy
Succeeded by	Trinkat class
Completed	7
Retired	7
General characteristics
Type	Large Patrol Craft
Displacement	210 tons full load
Length	37.5 m (123 ft)
Propulsion	2 × diesel motors with 6,820 hp 2 shafts
Speed	30 kn (56 km/h; 35 mph)
Range	5,800 nmi (10,700 km; 6,700 mi) at 15 kn (28 km/h; 17 mph)
Complement	32
Sensors and processing systems	BEL 1245 surface radar
Armament	2 × Bofors 40mm/60 gun 1 × 7.62 mm MG 18 MK 7, 10 MK 12 depth charges

The Seaward-class defence boats are large patrol craft designed by Mazagon Dock Limited (MDL) and built by Garden Reach Shipbuilders and Engineers (GRSE) for the Indian Navy. All of these vessels have been decommissioned, due to the large maintenance overhead they require.

Midlife refits

The ships of this class were built with low strength mild steel and thin plates, and consequently had low corrosion tolerance. As such adhering to prescribed docking intervals was essential.

INS Seaward (T54) was commissioned in September 1982. Its medium refit was due in March 1988 and its long refit in April 1992. Ignoring the vulnerability to corrosion of this ship, the medium refit was delayed by over three years and was carried out from July 1991 to April 1992. As a result, the long refit could not be planned. However, another short refit including the replacement of the engines was taken up in December 1993. The short refit was converted into a medium refit in February 1994. While carrying out repairs, extensive damage to the hull below the waterline was noticed in March 1994. The medium refit was extended to May 1996 because the engines and other materials procured for this ship were used for carrying out ongoing repairs on another, similar, ship (SDBT-55).

Ships

References

1. "Supply of two serviceable Main Engines to the Mauritius Police Force by the Government of India on a gratis basis". High Commission of Port Louis, Mauritius (Press release). 7 October 2011. Retrieved 9 March 2020.
2. "The NCG to acquire high-speed crafts from foreign countries". Government of Mauritius (Press release). 12 December 2019. Retrieved 9 March 2020.

External links

• Seaward Defence Boats - Bharat Rakshak
• SDB - Seaward Defense Boats - Global Security

v t e Ship classes of the Indian Navy
Aircraft carriers	Vikrant (1961) Viraat Vikramaditya Vikrant (2013) Vishal
Destroyers	Hunt Q and R Rajput Delhi Kolkata Visakhapatnam Project 18
Frigates	River Blackwood Whitby Leopard Nilgiri Godavari Brahmaputra Talwar Shivalik Nilgiri Project 17B
Corvettes	Bathurst Arnala Durg Veer Abhay Khukri Kora Kamorta ASW-SWC Next Generation Missile Vessels
Fast attack craft	Vidyut Chamak NGFAC
Nuclear submarines	Attack Charlie Akula-II Indian SSN Ballistic missile Arihant S5**
Conventional submarines	Kalvari Vela Sindhughosh Shishumar Kalvari Project 75I
Midget submarines	Indian Navy Swimmer Delivery Vehicle
Amphibious warfare ships	Kumbhir Magar Shardul Jalashwa Indian MRSV
Research and survey vessels	Makar Sandhayak Sagardhwani Dhruv GRSE class
Patrol craft	Ajay Seaward Sukanya Super Dvora Mk II Trinkat Bangaram Car Nicobar Saryu
Minesweeper	Bangor Ton Ham Mahé Pondicherry GSL Mine Counter-Measure Vessels
Replenishment ship	Ambika Komandarm Fedko Aditya Deepak HSL
Tugboats	Anand Anjan Arga Balram Bahadur Bhim Gaj IRS Bhishm Madan Singh
Ferries	GSL Manoram Shalimar
Barges	Poshak Puran Vipul Modest Corporated Hooghly Sahayak GSL
Torpedo recovery	Astravahini Astradharani
Dredgers	Nikaraksha
Training	Tir ABG
Decommissioned Under construction Planned List of active Indian Navy ships Submarines of the Indian Navy List of ships of the Indian Navy Future of the Indian Navy

• Patrol vessels of the Indian Navy