class destroyer class class stealth guided missile destroyers constructed class comprises ships built dock limited india largest destroyers operated delays construction problem found sea trials initial commissioning date ship class pushed destroyers follow project delhi class destroyers considerably capable major improvements design addition substantial land attack capabilities fitting modern sensors weapons systems development approved follow class earlier project delhi class destroyers aim follow class incorporate higher level air defence land attack anti submarine anti ship capabilities preceding class initially option year redesigned follow class incorporate higher levels technology including modern stealth characteristics year approval construction given concept function project framed navy detailed design developed dock limited construction construction class ships sanctioned government india steel lead ship cut march construction began september mumbai initial expectation class handed navy class suffered consecutive delays slow construction procedures technical problems saw ship class enter service mid delays construction programme attributed persistent design changes incorporate new weapons systems sensors failure ukrainian shipyard deliver ship propellers shafts contract later awarded russian firm finally delay delivery anti air missiles final stages completion class largest destroyers constructed ships class launched fitted technical problems found sea trials lead ship delayed project months early design description class share similar dimensions previous delhi class modifications include major upgrades weaponry sensors helicopter systems standard displacement long tons short tons load displacement long tons short tons largest destroyers operated media reports given load displacement long tons short tons stealth destroyers built india marked significant development india technology ships incorporate modern weapons sensors advanced information warfare suite auxiliary control system sophisticated power distribution architecture crew quarters class length beam draught ship power propulsion features standard combined gas gas system utilizing twin gas turbine plants gas turbines class features diesel engines board generators generators supply ship electricity propellers run configuration allows ship reach speeds excess mph aviation facilities include large flight deck designed handle larger helicopters delhi class enclosed hangar maritime helicopters primary radar class star multi mission equipped long range volume search radar star surveillance radar active towed array bow mounted hull mounted array new generation carried sub surface surveillance protect anti ship missiles coming multiple directions ship carries systems control launching system ship main air defence armament composed cell vertical launching systems allowing medium long range air defence missiles addition fitted close defence anti ship land attack missiles primary offensive armament class missiles fitted cell universal vertical allowing missile launch missiles fired distinctive noticeable armament class naval gun located forward bridge gun provides limited anti shipping capability anti air capability addition naval gun fire support role land based operations anti submarine warfare class equipped torpedo launching system torpedo tubes anti submarine rocket launchers provides combat management million lines codes written develop advanced combat management system onboard system designed data surrounding threat comes place analysis kind threat system advises commanding officer kind weaponry use tackle threat obviously happens real time ship equipped sophisticated digital networks based information highway data sensors weapon ride integrate information platforms indigenous data link system provide maritime domain awareness intricate power supply management remote control monitoring machinery achieved ships class initially total program cost long term spare parts expected cost million construction costs escalated cost program billion ship costing million defense minister cited causes delay supply warship grade steel russia increase costs russian specialists inflation build period wage revision october delay cost weapons sensors
Kolkata-class destroyer