Indian Navy’s Delhi Class Destroyers

Contents

•Introduction•Specifications•Over View•Weapons•Sensors•Propulsion•References

Introduction• 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 largest warships to be fully designed

and built in India, although they will soon be superseded by the Kolkata class destroyers and the Vikrant class aircraft carrier. • They were built at Mazagon Dock Limited in Mumbai.• Each ship can support two helicopters, the Sea King or the HAL Dhruv. • The Sea King helicopters are equipped with a Super Searcher radar

and primarily used in air surveillance and anti-submarine roles. • The helicopters are capable of flying four and half hours non-stop.

The HAL Dhruv helicopters are primarily for utility roles. • The INS Delhi has a crew of approximately 30 officers and 350 sailors.

Specifications• 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 x M36E gas turbine plants;2 shafts;4 x

DT-59 reversible gas turbines;2 x RG-54 gearboxes;64,000 shp• Speed: 28 knots (52 km/h)+• Range: 5,000 mi (8,000 km)• Complement: 350 (incl 40 officers)

Over View• The construction of the Delhi class, the largest warships yet built in

India, was delayed by the collapse of the Soviet Union and the Black Sea naval yards being taken over by the newly independent Ukraine. • Delhi was laid down in 1987 and launched in 1991 but was not

commissioned for another six years.• Three Delhi Class destroyers were built for the Indian Navy by

Mazagon Dock based in Mumbai, under the Project 15 program. • The Delhi destroyer was designed by the Indian Navy with the

detailed and production design phase carried out by Mazagon Dock. INS Delhi was commissioned in 1997, INS Mysore in June 1999 and INS Mumbai (formerly Bombay) in January 2001.• With a displacement of 6,700t, overall length of 163m and beam of

17m, the Delhi Class is the largest warship built in India. The ship is fitted with sophisticated anti-ship, anti-aircraft and anti-submarine sensor and weapon systems.

Weapons• The ship's integrated combat data system is supplied by Bharat Electronics

Ltd (BEL) of Hyderabad.• The main gun at the bow of the ship is a 100mm gun supplied by Russia. • The ship is also fitted with four six-barrel AK 650 gatling guns.• The ship is equipped with four quad launchers for the Uran anti-ship

missile system. • The Uran system launches the Kh-35 (Nato designation SS-N-25) antiship

cruise missile, which uses an inertial guidance system to steer the missile towards the target area and an active radar homing head for terminal guidance.

• The minimum and maximum ranges of the missile are 5km and 130km.• The surface-to-air missile system is the Russian Shtil (SA-N-7), known by

the NATO reporting name Gadfly. • Despite a successful series of firing trials in June 2003, technical problems

have put the future of the missile system in doubt.• INS Delhi, INS Mysore and INS Mumbai are fitted with the Rafael Barak

point air defense missile system.

Sensors• The ship's radar suite includes Rashmi I-band navigation

radar by Bharat Electronics, Russian Kite Screech and Bass Tilt H,I and J band fire control radars for the guns, Garfun B fire control radar for the Kh-35 Uran SSM, Front Dome fire control radar for the SA-N-17 SAM, RALW - LW08 air search radar operating in D-band and supplied by Bharat Electronics Ltd and Thales Nederland (formerly Signaal) and the Bharat / Thales RAWS - DA05 E-band surface search radar.• The ship's hull mounted active search sonar capability is

based on the TSM2633 by Thales Underwater Systems or the APSOH by Bharat.• The Delhi Class also has a variable depth sonar, Model 15-

750 developed and manufactured in India by Indal and Garden Reach.

Propulsion

• The ship's propulsion is based on a combined diesel and gas CODAG system. • The Russian gas turbine system is the AM-50. The KVM-18 diesel motors are supplied by Bergen and Garden Reach. • The propulsion system drives two shafts and provides a maximum speed of 28kt.

References• http://upload.wikimedia.org/wikipedia/commons/thumb/3/38/INS_Delhi-1.JPG/300px-

INS_Delhi-1.JPG• http://lh3.ggpht.com/-nvee1mbRg90/T7EUAyOixPI/AAAAAAAAFSE/Up3pI9RY1YQ/

Delhi-Class-Destroyer-INS-Mysore-Indian-Navy-02_thumb%25255B2%25255D.jpg?imgmax=800

• http://www.militaryimages.net/photopost/data/512/Delhi12.jpg• http://lh5.ggpht.com/-k9MRsiO2p08/UBwVXmFaZcI/AAAAAAAAGDI/OplQOFkbi7E/s0/

Delhi-Class-Destroyer-INS-Delhi-D61-Indian-Navy-03.jpg• http://static.indianexpress.com/m-images/Fri%20Sep

%2018%202009,%2017:27%20hrs/M_Id_109490_INS_kochi.jpg• http://s019.radikal.ru/i637/1203/b9/d4669362200f.jpg• http://i597.photobucket.com/albums/tt58/shanksinha/Kolkata-Class.jpg• http://www.bharat-rakshak.com/NAVY/Images/P15b.jpg• http://4.bp.blogspot.com/-QvBMKVBD1uU/TeU2bj5aobI/AAAAAAAAAH8/

I__PGMYRuBA/s320/VL+Shtil-1.jpg• http://media2.intoday.in/indiatoday/images/stories/ins_teg--2_350_071612104853.jpg• http://www.naval-technology.com/projects/delhi-class-destroyers/

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