🇰🇷

Sejong the Great-class (KDX-III)

naval4.5 Genactive

Manufacturer:HD Hyundai Heavy Industries / Hanwha OceanIntroduced: 2008|Status: active|Origin: South Korea

NAVALSPEC // SEJONG-THE-GREAT-CLASS

2026 Strategic Capability IndexGlobal audited benchmark for this military asset domain

View in Naval Rankings

FIREPOWER

N/A

MOBILITY

N/A

PROTECTION

N/A

SENSORS

N/A

COMBAT VALUE

N/A

UNIT COST

N/A

Platform Dossier & Identity

IDENTITY

Typedestroyer

Categorynaval

Country🇰🇷South Korea

ContractorHD Hyundai Heavy Industries / Hanwha Ocean

Statusactive

Generation4.5 Generation

Introduced2008

Service StatusActive

Data SourceIISS Military Balance / Official Specifications

Defense Tech Capability Scorecard

TACTICAL AUDIT

EW SUITE

50/100

Electronic Attack & Jamming Defense

STEALTH / RCS

50/100

Radar Signature Reduction

ACTIVE PROTECTIONPASSIVE

Hard-Kill Interception

BMS BATTLE MGMTNETWORKED

Tactical Datalink Integration

Tactical Specifications Matrix

SPEC SHEET

Length165.9 m

Width21.4 m

Height46 m

Weight10,600,000 kg

Crew300 personnel

Max Speed56 km/h

Range10,200 km

Powerplant4x General Electric LM2500 gas turbines (COGAG, 100,000 shp)

Weapons & Ordnance Manifest

PRIMARY WEAPON

128 total missile cells: 80-cell Mk 41 VLS (SM-2 Block IIIB/IV) + 48-cell K-VLS (Hyunmoo-3 Cruise, Red Shark ASW)

SECONDARY WEAPONS

16x SSM-700K Haeseong Anti-ShipMk 45 Mod 4 127mm gunGoalkeeper 30mm CIWSRAM Block 1

Avionics & Sensor Suite

SENSORS

RadarNONE

Visual Detection Only

Fire Control (FCS)MANUAL

Direct Aiming Optics

Radar Warning (RWR)NONE

No Dedicated RWR

ECM SuiteNONE

Standard Decoys Only

Thermal & FLIRNONE

Optical Day Vision Only

Sonar SuiteOPTIONAL

Sonar Unlisted

Supply Chain & Industrial Intel Sheet

MIB AUDIT

PRIME CONTRACTOR75% WORKSHARE

HD Hyundai Heavy Industries🇰🇷

PROPULSION SYSTEM🇰🇷

Marine Gas Turbines / Nuclear / CODLOGVendor: Hanwha EngineThrust/Power: Combined Gas Turbine Propulsion

RADAR / AVIONICS MANUFACTURER🇰🇷

Integrated 3D Multi-Function Naval Radar ArrayManufacturer: Hanwha SystemsArchitecture: 3D Naval Air Search & Fire Control Radar

PRIMARY ARMAMENT VENDOR🇰🇷

Mk 41 / Sylver Vertical Launch System & Heavy TorpedoesVendor: LIG Nex1Payload: VLS Missile Array

SENSORS / OPTICS SUITE🇰🇷

Sonar Acoustic Suite & Optical SurveillanceVendor: Thales Group

SECURE SEMICONDUCTORS🇺🇸

Intel FederalNode: 16nm Rad-Hardened Military Silicon

Passive Armor & Countermeasures

SURVIVABILITY

Armor Compositionnone

Tactical Communications & Data Link

C4ISR

Satellite UplinkNo

Tactical Data LinkStandard

Military EncryptionCommercial

Procurement & Life-Cycle Cost

COST AUDIT

Unit Purchase CostN/A

Annual Operating CostN/A

Annual Maintenance CostN/A

Performance Analysis

HUD BENCHMARK

6-Axis Telemetry Ratings0-100 SCALE

Firepower

N/A

Mobility

N/A

Protection

N/A

Sensors

N/A

Reliability

N/A

Maintainability

N/A

Similar Platforms

DOMAIN PEERS

🇺🇸Arleigh Burke Flight III

United States•destroyer

CV95

🇰🇷Sejong the Great

South Korea•destroyer

CV93

🇯🇵Maya class

Japan•destroyer

CV94

🇬🇧Type 45 Destroyer

United Kingdom•destroyer

CV87

🇦🇷Almirante Brown-class

Argentina•destroyer

CV80

Additional Intelligence Information

AUDIT LOG

Intelligence SourceIISS Military Balance / Official Specifications

Last Verification Date2026-10-10