{
  "id": "buyan",
  "name": "Buyan Class (Project 21630 Buyan)",
  "aliases": [
    "Astrakhan"
  ],
  "domain": "naval",
  "country": "RUS",
  "category": "Corvette",
  "status": null,
  "fielded": 2006,
  "operators": [
    "RUS"
  ],
  "prolif_count": 1,
  "summary": "The Buyan Class (Project 21630 Buyan) Russian Corvetteare series of corvettes (small artillery and missile ships in Russian classification) developed by Zelenodolsk Design Bureau for the Russian Navy.",
  "specs": [
    {
      "k": "length_m",
      "v": 62,
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "beam_m",
      "v": 9.6,
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Draft",
      "section": "dims",
      "v": "2 m",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Displacement (standard)",
      "section": "dims",
      "v": "500 tons",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "displacement_t",
      "v": 520,
      "src": [
        "weg-buyan"
      ],
      "conf": "medium",
      "label": "Displacement (full load)"
    },
    {
      "k": "propulsion",
      "v": "4 x Zvezda M520",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Engine power",
      "section": "mobility",
      "v": "14,584 shp",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "speed_kt",
      "v": 28,
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "range_km",
      "v": 2778,
      "src": [
        "weg-buyan"
      ],
      "conf": "medium",
      "note": "1,500 nmi (2,800 km; 1,700 mi)"
    },
    {
      "k": "",
      "label": "Endurance",
      "section": "mobility",
      "v": "10 days",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Navigation Radar",
      "section": "firecontrol",
      "v": "1 x MR-231 Navigation Radar",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Phased Array Radar",
      "section": "firecontrol",
      "v": "51x P-26M Pozitiv-M phased array radar system (Pozitiv-ME1.2 for export)",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Fire Control System",
      "section": "firecontrol",
      "v": "1x 5P-10-03 Laska fire control system (5P-10-03E for export) and the 1 x МР-123 fire control system",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Sonar System",
      "section": "firecontrol",
      "v": "1 x Anapa-M anti-saboteur sonar system (Anapa-ME for export)",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "NBC Water Washdown System",
      "section": "protection",
      "v": "Yes",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Electronic Warfare",
      "section": "protection",
      "v": "2 × 10 PK-10 decoy launchers",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Weapon System Ammunition: caliber",
      "section": "armament",
      "v": "100 mm",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Weapon System Ammunition: shell weight",
      "section": "armament",
      "v": "26.8 kg; 0.39 kg",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Weapon System Ammunition: shell",
      "section": "armament",
      "v": "HEI-Frag, Frag-T",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Weapon System Ammunition: basic load",
      "section": "armament",
      "v": "3,000",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "armament",
      "v": "1 x AK-100 Naval Cannon; 2 x AK-630-M2 CIWS; 1 x BM-21 Grad; 1 x 3M-47 Gibka; DP-65",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium"
    },
    {
      "k": "hulls",
      "v": 3,
      "src": [
        "weg-buyan"
      ],
      "conf": "medium",
      "note": "Hulls listed in the source card"
    }
  ],
  "payloads": [
    {
      "name": "1 x AK-100 Naval Cannon",
      "role": "Naval Cannon",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium",
      "caps": {
        "Type": "Naval Cannon",
        "Caliber": "100 mm",
        "Rate of fire": "50 to 60 rounds per minute"
      }
    },
    {
      "name": "2 x AK-630-M2 CIWS",
      "role": "Fully automatic naval close-in weapon system based on a six-barreled 3",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium",
      "caps": {
        "Type": "Fully automatic naval close-in weapon system based on a six-barreled 30 mm rotary cannon.",
        "Caliber": "30 mm",
        "Rate of fire": "4,000–5,000 rounds/min"
      },
      "range_km": 5
    },
    {
      "name": "1 x BM-21 Grad",
      "role": "Rocket Launcher",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium",
      "caps": {
        "Type": "Rocket Launcher",
        "Rate of fire": "2 rounds/s"
      },
      "range_km": 20
    },
    {
      "name": "1 x 3M-47 Gibka",
      "role": "A turret for ships that is equipped with Igla missiles.",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium",
      "caps": {
        "Type": "A turret for ships that is equipped with Igla missiles.",
        "Guidance": "dual waveband infra-red (S-version)",
        "Speed": "570m/s"
      },
      "range_km": 5
    },
    {
      "name": "DP-65",
      "role": "55 mm ten-barreled remotely-controlled naval grenade launcher system.",
      "src": [
        "weg-buyan"
      ],
      "conf": "medium",
      "caps": {
        "Type": "55 mm ten-barreled remotely-controlled naval grenade launcher system."
      }
    }
  ],
  "variants": [
    {
      "name": "Astrakhan",
      "text": "Commissioned: 2006 Status: Active Fleet: Caspian Fleet",
      "src": [
        "weg-buyan"
      ]
    },
    {
      "name": "Volgodonsk",
      "text": "Commissioned: 2011 Status: Active Fleet: Caspian Fleet",
      "src": [
        "weg-buyan"
      ]
    },
    {
      "name": "Makhachkala",
      "text": "Commissioned: 2012 Status: Active Fleet: Caspian Fleet",
      "src": [
        "weg-buyan"
      ]
    }
  ],
  "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/buyan.html",
  "sources": {
    "weg-buyan": {
      "title": "Buyan Class (Project 21630 Buyan) Russian Corvette",
      "publisher": "U.S. Army TRADOC G-2 Worldwide Equipment Guide (ODIN)",
      "url": "https://odin.t2com.army.mil/WEG/Asset/Buyan_Class_Project_21630_Buyan_Russian_Corvette",
      "published": "2026-03-20",
      "tier": 1,
      "checked": "2026-10-10"
    }
  }
}