{
  "id": "2k11-krug",
  "name": "2K11 Krug (SA-4 Ganef)",
  "aliases": [
    "2K11 ZRD-SD"
  ],
  "domain": "missile",
  "country": "RUS",
  "category": "Medium-range surface-to-air missile system",
  "status": null,
  "fielded": 1965,
  "operators": [
    "RUS",
    "ARM",
    "AZE",
    "KGZ",
    "SYR",
    "TKM",
    "UKR"
  ],
  "prolif_count": 6,
  "summary": "The 2K11 Krug (NATO code SA-4 Ganef) is a Soviet-made medium-range air defense missile. The development of the system started in 1958.",
  "specs": [
    {
      "k": "",
      "label": "Manufacturer",
      "section": "system",
      "v": "MZiK",
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium"
    },
    {
      "k": "crew",
      "v": [
        3,
        5
      ],
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Chassis",
      "section": "mobility",
      "v": "GM-123 chassis",
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium"
    },
    {
      "k": "engine_name",
      "v": "V59",
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Thrust / power",
      "section": "mobility",
      "v": "420 hp",
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium"
    },
    {
      "k": "range_max_km",
      "v": 780,
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Guidance",
      "section": "firecontrol",
      "v": "radio command with semi-active radar terminal homing",
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Hull Armor",
      "section": "protection",
      "v": "15 mm",
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Turret Armor",
      "section": "protection",
      "v": "15 mm",
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "NBC Protection",
      "section": "protection",
      "v": "Collective overpressure",
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium"
    }
  ],
  "payloads": [
    {
      "name": "2P24 SPU launch vehicle",
      "role": "Armament",
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium",
      "caps": {}
    },
    {
      "name": "9M33",
      "role": "Suface-to-Air Missile",
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium",
      "caps": {
        "Type": "Suface-to-Air Missile",
        "Guidance": "Radio command",
        "Warhead": "Frag-HE",
        "Warhead weight": "150 kg",
        "Speed": "Mach 4",
        "Length": "8,784 m"
      },
      "range_km": 55,
      "qty": "2 ea"
    },
    {
      "name": "1S32 Pat Hand SSNR",
      "role": "H-band continuous wave fire control and guidance radar",
      "src": [
        "weg-2k11-krug"
      ],
      "conf": "medium",
      "caps": {
        "Type": "H-band continuous wave fire control and guidance radar"
      },
      "range_km": 128
    }
  ],
  "variants": [
    {
      "name": "Krug-A",
      "text": "first operational deployment version, entered service in 1967",
      "src": [
        "weg-2k11-krug"
      ]
    },
    {
      "name": "Krug-M:",
      "text": "a modified version of Krug-A, entered service in 1971",
      "src": [
        "weg-2k11-krug"
      ]
    },
    {
      "name": "Krug-M1",
      "text": "a modified version of Krug-M, entered service in 1974",
      "src": [
        "weg-2k11-krug"
      ]
    }
  ],
  "art": "tel",
  "image": {
    "file": "2k11-krug.jpg",
    "thumb": "2k11-krug-thumb.jpg",
    "credit": "Andrey Butko",
    "license": "CC BY-SA 3.0",
    "url": "https://commons.wikimedia.org/wiki/File:Donetsk_raketa_05.jpg",
    "title": "File:Donetsk raketa 05.jpg"
  },
  "verified": null,
  "changelog": [
    {
      "date": "2026-10-10",
      "change": "Entry created from the Worldwide Equipment Guide (ODIN), bulk import"
    },
    {
      "date": "2026-10-10",
      "change": "Added photo (CC BY-SA 3.0)"
    }
  ],
  "url": "https://www.defensepedia.com/systems/2k11-krug.html",
  "sources": {
    "weg-2k11-krug": {
      "title": "2K11 Krug (SA-4 Ganef) Russian Medium-Range Surface-to-Air Missile (SAM) System",
      "publisher": "U.S. Army TRADOC G-2 Worldwide Equipment Guide (ODIN)",
      "url": "https://odin.t2com.army.mil/WEG/Asset/2K11_Krug_SA-4_Ganef_Russian_Medium-Range_Surface-to-Air_Missile_SAM_System",
      "published": "2026-03-20",
      "tier": 1,
      "checked": "2026-10-10"
    }
  }
}