{
  "id": "type-037i",
  "name": "Type 037I Class (Haiqing Class)",
  "aliases": [],
  "domain": "naval",
  "country": "CHN",
  "category": "Corvette",
  "status": null,
  "fielded": 1982,
  "operators": [
    "CHN",
    "LKA"
  ],
  "prolif_count": 2,
  "summary": "The Type 037I submarine chaser (NATO reporting name: Haiqing class), is a follow-on class of submarine chasers to the preceding Type 037-class of the People's Liberation Army Navy. There are two designation sof this class, the base Type 037I and the improved Type 037IS.",
  "specs": [
    {
      "k": "crew",
      "v": 71,
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "length_m",
      "v": 62.8,
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "beam_m",
      "v": 7.2,
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Draft",
      "section": "dims",
      "v": "2.4 m",
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Displacement (standard)",
      "section": "dims",
      "v": "395 tons",
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "displacement_t",
      "v": 478,
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium",
      "label": "Displacement (full load)"
    },
    {
      "k": "propulsion",
      "v": "4 × Chinese PR 230ZC",
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Engine power",
      "section": "mobility",
      "v": "4 × Chinese PR 230ZC diesel engines at 4,000 hp (2,983 kW) with 4 shafts",
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "range_km",
      "v": 2408,
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium",
      "note": "\\1,300 nmi (2,400 km) at 15 kn (28 km/h)"
    },
    {
      "k": "speed_kt",
      "v": 28,
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Radars and sonars",
      "section": "firecontrol",
      "v": "1 x Pot Head Radar",
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Name",
      "section": "firecontrol",
      "v": "1 x Tamir-11 HF",
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Gun Weapon Systems",
      "section": "armament",
      "v": "The earlier boats are fitted with two manually operated twin-barrel 37 mm guns, but they have been replaced by two automatic 37 mm guns on the later variants. They also have various other mounted heavy machine guns for patrol duty.",
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Mines",
      "section": "armament",
      "v": "12 max. mines (two mine rails fitted)",
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Mortar System: mortar launcher",
      "section": "armament",
      "v": "The ships are armed with two 6-tubed anti-submarine mortar launchers.",
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Mortar System: mortar type",
      "section": "armament",
      "v": "Type 87 Mortar",
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    },
    {
      "k": "armament",
      "v": "Type 76A",
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium"
    }
  ],
  "payloads": [
    {
      "name": "Type 76A",
      "role": "Naval Gun",
      "src": [
        "weg-type-037i"
      ],
      "conf": "medium",
      "caps": {
        "Type": "Naval Gun",
        "Caliber": "37mm"
      },
      "qty": "4 × Type 76A 37 mm gun (2 × 2)"
    }
  ],
  "variants": [
    {
      "name": "Type 037I",
      "text": "Pennant Numbers: 688, 693 , 694 and 697 Pendant No. 275/285, 290, 302, 305, 609/610, 618/622, 626/629, 636/637, 689/692, 695/699, 701, 707, 723/733 and 740/742",
      "src": [
        "weg-type-037i"
      ]
    },
    {
      "name": "Type 037IS",
      "text": "Pennant Numbers: Approx. 611－614, 619, 631, 632－635, 710－713, 743, 744, 761－763 and 786－789",
      "src": [
        "weg-type-037i"
      ]
    }
  ],
  "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/type-037i.html",
  "sources": {
    "weg-type-037i": {
      "title": "Type 037I Class (Haiqing Class) Chinese Corvette",
      "publisher": "U.S. Army TRADOC G-2 Worldwide Equipment Guide (ODIN)",
      "url": "https://odin.t2com.army.mil/WEG/Asset/Type_037I_Class_Haiqing_Class_Chinese_Corvette",
      "published": "2026-03-20",
      "tier": 1,
      "checked": "2026-10-10"
    }
  }
}