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๐Ÿ‡ฐ๐Ÿ‡ท

Sejong the Great

naval4.5 Genactive
Manufacturer:HD Hyundai Heavy Industries / Hanwha OceanIntroduced: 2008|Status: active|Origin: South Korea
NAVALSPEC // SEJONG-THE-GREAT
Sejong the Great
2026 Strategic Capability IndexGlobal audited benchmark for this military asset domain
View in Naval Rankings
FIREPOWER
98
MOBILITY
90
PROTECTION
89
SENSORS
93
COMBAT VALUE
93
UNIT COST
$923.0M
Platform Dossier & Identity
IDENTITY
Typedestroyer
Categorynaval
Statusactive
Generation4.5 Generation
Introduced2008
Service StatusActive
Data SourceROK Navy Fleet Headquarters / Janeโ€™s Fighting Ships
Defense Tech Capability Scorecard
TACTICAL AUDIT
EW SUITE
88/100
Electronic Attack & Jamming Defense
STEALTH / RCS
78/100
Radar Signature Reduction
ACTIVE PROTECTIONEQUIPPED
Hard-Kill Interception
BMS BATTLE MGMTNETWORKED
Tactical Datalink Integration
Tactical Specifications Matrix
SPEC SHEET
Length165.9 m
Width21.4 m
Height6.25 m
Weight11,000,000 kg
Crew300 personnel
Max Speed56 km/h
Range10,000 km
Endurance60 hrs
Fuel Capacity1,500,000 L
Powerplant4x General Electric LM2500 gas turbines (100000 shp) in COGAG arrangement
Weapons & Ordnance Manifest
750 RDS AMMO
PRIMARY WEAPON
128x VLS cells (80x Mk 41 VLS + 48x K-VLS for SM-2 Block IIIB, K-ASROC Red Shark, and Haeseong/Hyunmoo-3C)750 RDS
SECONDARY WEAPONS
1x 127mm/62 Mk 45 Mod 4 naval gun1x 30mm Goalkeeper CIWS1x RIM-116 RAM Block 1 21-cell launcher
GUIDED MISSILES
RIM-66 SM-2 Block IIIBHyunmoo-3C cruise missileK-ASROC Red SharkSSM-700K Haeseong
TORPEDOES
2x triple 324mm K745 Blue Shark torpedo tubes
Avionics & Sensor Suite
SENSORS
RadarEQUIPPED
AN/SPY-1D(V) Aegis 3D phased array radar and SPG-62 fire control directors(370 km)
Fire Control (FCS)EQUIPPED
Digital Integrated Ballistic FCS
Radar Warning (RWR)EQUIPPED
Integrated Radar Warning Receiver
ECM SuiteACTIVE ECM
Multi-Band Electronic Jammer Suite
Thermal & FLIREQUIPPED
Thermal FLIR โ€ข Infrared (IRST) โ€ข Night Vision
Sonar SuiteEQUIPPED
DSQS-21BZ bow-mounted sonar and SQR-220K towed array sonar system(50 km)
Supply Chain & Industrial Intel Sheet
MIB AUDIT
PRIME CONTRACTOR75% WORKSHARE
HD Hyundai Heavy Industries๐Ÿ‡ฐ๐Ÿ‡ท
PROPULSION SYSTEM๐Ÿ‡ฐ๐Ÿ‡ท
Marine Gas Turbines / Nuclear / CODLOGVendor: Hanwha EngineThrust/Power: Combined Gas Turbine Propulsion
RADAR / AVIONICS MANUFACTURER๐Ÿ‡ฐ๐Ÿ‡ท
Integrated 3D Multi-Function Naval Radar ArrayManufacturer: Hanwha SystemsArchitecture: 3D Naval Air Search & Fire Control Radar
PRIMARY ARMAMENT VENDOR๐Ÿ‡ฐ๐Ÿ‡ท
Mk 41 / Sylver Vertical Launch System & Heavy TorpedoesVendor: LIG Nex1Payload: VLS Missile Array
SENSORS / OPTICS SUITE๐Ÿ‡ฐ๐Ÿ‡ท
Sonar Acoustic Suite & Optical SurveillanceVendor: Thales Group
SECURE SEMICONDUCTORS๐Ÿ‡บ๐Ÿ‡ธ
Intel FederalNode: 16nm Rad-Hardened Military Silicon
Passive Armor & Countermeasures
SURVIVABILITY
Armor Compositionmedium
Armor Thickness110 mm
CountermeasuresSLQ-200(V)K Sonata EW system, KDAGAIE Mk2 chaff/flare decoys, SLQ-261K torpedo acoustic countermeasure (TACM)
Tactical Communications & Data Link
C4ISR
Tactical RadioLink 11 / Link 16 tactical tactical data network
Satellite UplinkEquipped
Tactical Data LinkIntegrated (Link 16/MADL)
Military EncryptionType-1 Cryptographic
Procurement & Life-Cycle Cost
COST AUDIT
Unit Purchase Cost$923,000,000
Annual Operating Cost$40,000,000
Annual Maintenance Cost$20,000,000
Operational Deployments & Operator Nations
1 Operator Nations~3 Active Units
Operator NationDeployment StatusEstimated Fleet Inventory
๐Ÿ‡ฐ๐Ÿ‡ทSouth KoreaDomestic Operator
3units
Performance Analysis
HUD BENCHMARK
6-Axis Telemetry Ratings0-100 SCALE
Firepower
98/100
Mobility
90/100
Protection
89/100
Sensors
93/100
Reliability
92/100
Maintainability
89/100
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Additional Intelligence Information
AUDIT LOG
Intelligence SourceROK Navy Fleet Headquarters / Janeโ€™s Fighting Ships
Last Verification Date2026-10-07