Delhi-class destroyer

INS Delhi underway
Class overview
Name:	Delhi class
Builders:	Mazagon Dock Limited
Operators:	Indian Navy
Preceded by:	Rajput class
Succeeded by:	Kolkata class
Planned:	3
Completed:	3
Active:	3
General characteristics
Type:	Guided-missile destroyer
Displacement:	6,200 tonnes (full)
Length:	163 m (535 ft)
Beam:	17.4 m (57 ft)
Draught:	6.5 m (21 ft)
Propulsion:	2 × M36E gas turbine plants; 2 shafts; 4 × DT-59 reversible gas turbines; 2 × RG-54 gearboxes; 64,000 shp (48,000 kW)
Speed:	over 28 knots (52 km/h; 32 mph)
Range:	5,000 mi (8,000 km)
Complement:	350 (incl 40 officers)
Sensors and processing systems:	1 × MR-775 Fregat MAE air search radar 1 × Bharat RAWL (Dutch Signaal LW08) surface search radar 3 × MR-212/201 Vaygach-U (NATO: Palm Frond) navigation radars, JRC SATCOM 1 × Bharat APSOH or HUMSA sonar 1 × Garden Reach Model 15-750 variable depth sonar or 1 × Thales ATAS
Armament:	16 × Kh-35 Switchblade (SS-N-25) SSM (4 × quadruple KT-184 launchers) 32 × Barak 1 (4 × 8 cell VLS units) 2 × Shtil SAM systems (48 × Shtil-1 missiles) 1 × 100 mm AK-100 gun 2 × 30 mm AK-630 gatling guns 2 × RBU-6000 213 mm anti-submarine mortar arrays 1 × 5 533-millimetre (21 in) torpedo tubes
Aircraft carried:	2 × Sea King helicopters

The Delhi-class destroyers are guided-missile destroyers of the Indian Navy. Three ships of this class are in active service.

The Delhi-class vessels are the third-largest warships to be fully designed and built in India, after the Kolkata-class destroyers and the Shivalik-class frigates. They were built at Mazagon Dock Limited in Mumbai.

The development of the ship began as "Project 15" in 1977. The ships were designed indigenously and built by Mazagon Docks Limited (MDL) at a cost of Rs 7 Billion each.

The Delhi class has both Soviet and Western design influences, incorporating elements of the Sovremenny, Rajput and Kashin-II-class destroyers, and the Godavari-class frigate.

These vessels are fully fitted with flag facilities. The Delhi class is also capable of operating in a NBC environment. Radar cross-section reduction is presumed to be minimal, to the extent that some sharp angles have been flattened.

In the main air defence role, a pair of 2 3S-90 launchers – one installed forward of the bridge and the other atop the dual helicopter hangar – are fitted with the Shtil SAM system. The Shtil system consists of the Russian Shtil missile and 24 such missiles are carried in a below-decks magazine. The launchers elevate up to 70° but have a limited firing arc of 30° within the centreline. The launcher groups require a crew of 20 men and weigh about 50 tons.

The Delhi class is being upgraded with the Rafael Barak 1 point air defence missile system, which overcomes the limited firing arc of the Shtil system. It has an eight-cell vertical launch system and the missile command-to-line-of-sight (CLOS) radar guidance with a range from 500 m (1,600 ft) to 10 km (6.2 mi). The missile's maximum range is 32 km (20 mi). The ship has a surveillance capacity of over 350 km (220 mi) and can sterilise an area of 250 km (160 mi).

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Wikipedia