{
  "id": "lada",
  "name": "Lada Class (Project 677 Class)",
  "aliases": [],
  "domain": "naval",
  "country": "RUS",
  "category": "Diesel-electric attack submarine",
  "status": null,
  "fielded": 2010,
  "operators": [
    "RUS"
  ],
  "prolif_count": 1,
  "summary": "Lada-Class (Project 677 Lada Class) Russian Diesel-Electric Attack Submarine is the new advanced class of diesel-electric attack submarine designed by the Russian Rubin Design Bureau.",
  "specs": [
    {
      "k": "",
      "label": "Units built",
      "section": "system",
      "v": "Planned: 12 Active: 1",
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "length_m",
      "v": 72,
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "beam_m",
      "v": 7.1,
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Draft",
      "section": "dims",
      "v": "6.5 m",
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Propulsion",
      "section": "mobility",
      "v": "Electric propulsion motor on permanent magnets Storage battery with increased service life 2 diesel Air Independent Propulsion (AIP) systems based on…",
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "speed_kt",
      "v": 21,
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Endurance",
      "section": "mobility",
      "v": "45 days",
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Test depth",
      "section": "mobility",
      "v": "300 m",
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Automated combat control system",
      "section": "firecontrol",
      "v": "Yes, Litiy CICS",
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Sonar",
      "section": "firecontrol",
      "v": "sophisticated sonar equipment with bow and flank arrays, as well as towed array.",
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Launcher",
      "section": "armament",
      "v": "6 × 533-millimeter (21 in) torpedo tubes",
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Armament options",
      "section": "armament",
      "v": "Missiles: Alfa (SS-N-27 Sizzler) cruise missile, Oniks (SS-N-26) anti-ship cruise missile Torpedoes: 6 x 533 mm torpedo tubes, for 18 torpedoes, anti-submarine or anti-ship missiles.",
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "armament",
      "v": "SS-N-27 “Sizzler”",
      "src": [
        "weg-lada"
      ],
      "conf": "medium"
    },
    {
      "k": "hulls",
      "v": 3,
      "src": [
        "weg-lada"
      ],
      "conf": "medium",
      "note": "Hulls listed in the source card"
    }
  ],
  "payloads": [
    {
      "name": "SS-N-27 “Sizzler”",
      "role": "Short-Range Anti-Ship Missile",
      "src": [
        "weg-lada"
      ],
      "conf": "medium",
      "caps": {
        "Type": "Short-Range Anti-Ship Missile",
        "Warhead": "1x200 kg HE for 3M54 (1x450 kg HE for 3M54M1)",
        "Length": "8.22 m"
      },
      "range_km": 220,
      "qty": "18"
    }
  ],
  "variants": [
    {
      "name": "Sankt Peterburg",
      "text": "Commissioned: 2010 Status: Active Fleet: Northern Fleet",
      "src": [
        "weg-lada"
      ]
    },
    {
      "name": "Kronshtadt",
      "text": "Commissioned: 2022 Status: Sea Trials Fleet: Northern Fleet",
      "src": [
        "weg-lada"
      ]
    },
    {
      "name": "Velikiye Luki",
      "text": "Commissioned: 2022 Status: Under Construction Fleet: Baltic Fleet",
      "src": [
        "weg-lada"
      ]
    }
  ],
  "art": "submarine",
  "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/lada.html",
  "sources": {
    "weg-lada": {
      "title": "Lada Class (Project 677 Class) Russian Diesel-Electric Attack Submarine",
      "publisher": "U.S. Army TRADOC G-2 Worldwide Equipment Guide (ODIN)",
      "url": "https://odin.t2com.army.mil/WEG/Asset/Lada_Class_Project_677_Class_Russian_Diesel-Electric_Attack_Submarine",
      "published": "2026-03-20",
      "tier": 1,
      "checked": "2026-10-10"
    }
  }
}