{
  "id": "gwanggaeto-the-great",
  "name": "Gwanggaeto the Great Class (KDX-I Class)",
  "aliases": [],
  "domain": "naval",
  "country": "KOR",
  "category": "Destroyer",
  "status": null,
  "fielded": 1998,
  "operators": [
    "KOR"
  ],
  "prolif_count": 1,
  "summary": "The Gwanggaeto the Great-class destroyers, often called KDX-I, are destroyers but are classified by some as frigates, operated by the Republic of Korea Navy. It was the first phase of ROKN's KDX program, in moving the ROK Navy from a coastal defense force to a blue-water navy.",
  "specs": [
    {
      "k": "crew",
      "v": 185,
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "length_m",
      "v": 135.4,
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "beam_m",
      "v": 14.2,
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Draft",
      "section": "dims",
      "v": "4.30 m",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Displacement (standard)",
      "section": "dims",
      "v": "3,181 tons",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "displacement_t",
      "v": 3855,
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium",
      "label": "Displacement (full load)"
    },
    {
      "k": "speed_kt",
      "v": 30,
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "range_km",
      "v": 8334,
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium",
      "note": "4,500 nmi (8,300 km; 5,200 mi) at 18 kn (33 km/h; 21 mph)"
    },
    {
      "k": "",
      "label": "FCS Name",
      "section": "firecontrol",
      "v": "2 x Thales Goalkeeper Fire Control System",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Air Search Radar",
      "section": "firecontrol",
      "v": "1 x Thales MW-08 air search",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Surface Search Radar",
      "section": "firecontrol",
      "v": "1 x ISC-Cardion AN/SPS-55M surface search",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Navigation Radar",
      "section": "firecontrol",
      "v": "1 x Daewoo DTR-92 navigation",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Active and Passive Sonar",
      "section": "firecontrol",
      "v": "1 STN Atlas Elektronik DSQS-21BZ hull-mounted active/passive/search/attack",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Towed Linear Passive Sonar",
      "section": "firecontrol",
      "v": "1 x Thales towed linear passive hydrophone array of undisclosed type",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Active Protection System",
      "section": "protection",
      "v": "2 x 330-340 round Matra-Defense Dagaie Mark 2 decoy rocket launching system",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Torpedo Decoy",
      "section": "protection",
      "v": "1 x U.S. AN/SLQ-25 NIXIE towed acoustic torpedo decoy system.",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "EW",
      "section": "protection",
      "v": "1 x ArgoSystems APECS-II/AR-700 intercept/jammer suite",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "NBC Water Washdown System",
      "section": "protection",
      "v": "Yes",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Torpedo System: launcher",
      "section": "armament",
      "v": "2 x triple 324-mm ASW torpedo tubes",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Torpedo System: basic load",
      "section": "armament",
      "v": "46",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Aircraft Facilities: aircraft",
      "section": "armament",
      "v": "2 x Super Lynx [carries Sea Skua ASM missiles or U.S. Mark 46, Mod. 5 ASW torpedoes].",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "armament",
      "v": "1 x OTO Melara 127/64; 2 x Goalkeeper CIWS; 1 x 16-cell Mark 48 VLS launcher; RIM Sea-7 Sparrow",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium"
    },
    {
      "k": "hulls",
      "v": 3,
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium",
      "note": "Hulls listed in the source card"
    }
  ],
  "payloads": [
    {
      "name": "1 x OTO Melara 127/64",
      "role": "Naval Gun",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium",
      "caps": {
        "Type": "Naval Gun",
        "Caliber": "127 mm",
        "Rate of fire": "40 rounds/min"
      },
      "range_km": 100,
      "qty": "1"
    },
    {
      "name": "2 x Goalkeeper CIWS",
      "role": "Close-in-Weapon System (CIWS)",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium",
      "caps": {
        "Type": "Close-in-Weapon System (CIWS)",
        "Caliber": "30 mm",
        "Rate of fire": "70 rounds/second (4,200 rounds/minute)"
      },
      "range_km": 0.4,
      "qty": "2"
    },
    {
      "name": "1 x 16-cell Mark 48 VLS launcher",
      "role": "Armament",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium",
      "caps": {}
    },
    {
      "name": "RIM Sea-7 Sparrow",
      "role": "Surface-to-Air Missile",
      "src": [
        "weg-gwanggaeto-the-great"
      ],
      "conf": "medium",
      "caps": {
        "Type": "Surface-to-Air Missile",
        "Speed": "Mach 2.5"
      },
      "range_km": 15
    }
  ],
  "variants": [
    {
      "name": "ROKS Gwanggaeto the Great",
      "text": "Commissioned: 1996 Status: Active",
      "src": [
        "weg-gwanggaeto-the-great"
      ]
    },
    {
      "name": "ROKS Eulji Mundeok",
      "text": "Commissioned: 1997 Status: Active",
      "src": [
        "weg-gwanggaeto-the-great"
      ]
    },
    {
      "name": "ROKS Yang Man-chun",
      "text": "Commissioned: 2000 Status: Active",
      "src": [
        "weg-gwanggaeto-the-great"
      ]
    }
  ],
  "art": "destroyer",
  "image": null,
  "verified": null,
  "changelog": [
    {
      "date": "2026-10-10",
      "change": "Entry created from the Worldwide Equipment Guide (ODIN), bulk import"
    }
  ],
  "url": "https://www.defensepedia.com/systems/gwanggaeto-the-great.html",
  "sources": {
    "weg-gwanggaeto-the-great": {
      "title": "Gwanggaeto the Great Class (KDX-I Class) South Korean Destroyer",
      "publisher": "U.S. Army TRADOC G-2 Worldwide Equipment Guide (ODIN)",
      "url": "https://odin.t2com.army.mil/WEG/Asset/Gwanggaeto_the_Great_Class_KDX-I_Class_South_Korean_Destroyer",
      "published": "2026-03-20",
      "tier": 1,
      "checked": "2026-10-10"
    }
  }
}