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Sejong the Great-class destroyer
Photo: U.S. Navy photo by Mass Communication Specialist 1st Class Brandon Raile · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
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SejongtheGreat-classdestroyer

Destroyers · South Korea · 2007
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SejongtheGreat-classdestroyer

Sejong the Great-class destroyer
Sejong the Great-class destroyer Photo: U.S. Navy photo by Mass Communication Specialist 1st Class Brandon Raile · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
* Absolute score — assessed within category · no era adjustment
Firepower
92
Air Defence
90
ASW Capability
85
Sensors
88
Survivability
90
Versatility
87
Endurance
85
Aviation
75
Technology
90
Cost-Effectiveness
80
Origin South Korea
ManufacturerHD Hyundai Heavy Industries
CategoryDestroyers
EraPost-Cold War
In service2007
Operators1 countries
Quantity6
Data Quality82%
MASS(Military Archive Scoring System)
88
Destroyers MASS Rating
1/14
Post-Cold War
3/478
All-Time
Destroyers · 10 axes scored
Firepower
92
Air Defence
90
ASW Capability
85
Sensors
88
Survivability
90
Versatility
87
Endurance
85
Aviation
75
Technology
90
Cost-Effectiveness
80
ⓘ Regardless of era, the same scoring system applies to all units in the destroyers category.
01 / Overview
Sejong the Great-class destroyer
Category
Production
2007–
Quantity
6
Unit Price (current)
$923.0M
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
DESTROYERS · POST-COLD WAR
1
PERFORMANCE/PRICE
78
UNIT COST (2025 USD)
$923.0M
Inflation: +%0
88
destroyers category
ⓘ Performance/Price and MASS score are computed across all units in the destroyers category, regardless of era.
02 / Specs & Design
◎Identification5MOD.5
  • Hull Classificationdestroyer
  • Ship TypeGuided-missile destroyer
  • Builder / ShipyardHyundai Heavy Industries, Daewoo Shipbuilding & Marine Engineering
  • Ships in Class6
  • In ServiceYes
◈Displacement3MOD.3
  • Light Displacement7,650 t
  • Standard Displacement8,200 t
  • Full Load Displacement12,000 t
▣Dimensions3MOD.3
  • Length (overall)170 m
  • Beam21.4 m
  • Draft6.25 m
◇Complement1MOD.1
  • Total Complement300
◆Propulsion9MOD.9
  • PropulsionCOGAG
  • Arrangement (CODAG/COGAG…)4 × General Electric LM2500 COGAG; 2 × shafts; 100,000 shp
  • Number of Engines4
  • Shaft Power100,000 kW
  • Shafts / Screws2
  • Top Speed30 kn
  • Range5,500
  • Endurance30 day
  • Nuclear-PoweredNo
▤Gun Armament5MOD.5
  • Main Gun5-inch (127 mm)/L62 caliber Mk 45 Mod 4
  • Main Gun Calibre127 mm
  • Main Gun Count1
  • Secondary Guns30 mm Goalkeeper CIWS, 20mm Block 1B Phalanx CIWS
  • CIWS1 × 30 mm Goalkeeper, 1 × RAM Block 1, 2 × 20mm Block 1B Phalanx
⬢Missile Armament6MOD.6
▲Underwater Warfare4MOD.4
◎Aviation5MOD.5
◈Sensors & Combat Systems6MOD.6
▣Cost1MOD.1
  • Unit Cost923 USD
◇Fleet Status8MOD.8
  • Completed4
  • Active4
  • Under Construction2
  • Planned6
  • Cancelled0
  • Lost0
  • Retired0
  • Preserved0
03 / History
SERVICE LIFESPANStill in Service
  1. 2007Production started
19
years in service
6
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE12terms
Anti-Submarine Warfare. Capability to detect, track, and engage submarines.
Anti-submarine warfare (ASW) rocket or missile: a weapon system used to detect and engage underwater targets, typically deployed from aircraft.
Aegis combat system or equivalent refers to naval combat systems integrating radar, missiles, and guns for air defense and anti-submarine warfare capabilities.
Systems designed to detect, track, intercept, and destroy ballistic missiles and their warheads.
Combined gas turbine and gas turbine propulsion system where two gas turbines drive a single shaft via a combining gearbox.
Military action involving the use of electromagnetic spectrum to disrupt, deceive, or destroy enemy electronic systems.
The upper deck of an aircraft carrier, equipped for aircraft takeoff, landing, and maintenance operations.
Sonar system installed on the hull of a ship, used for underwater detection and navigation by emitting and receiving sound waves.
Cruise missiles designed to strike land targets from naval platforms, typically launched from ships or submarines.
Radar system using multiple small antennas whose signals are combined to create a steerable beam without physical movement, enabling rapid scanning and tracking of multiple targets.
A system of hydrophones towed behind a vessel to detect submarines and torpedoes, minimizing interference from the ship's self-noise.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Destroyers entry →