{
  "id": "m110a1",
  "name": "M110A1",
  "aliases": [],
  "domain": "land",
  "country": "USA",
  "category": "203mm self-propelled howitzer",
  "status": null,
  "fielded": 1977,
  "operators": [
    "USA"
  ],
  "prolif_count": 0,
  "summary": "The M110A1 American 203mm Self-Propelled Howitzer (SPH), is a variant of the M110 American 203mm Self-Propelled Howitzer. Versions of the M110 with the longer barrel are the M110A1 (no muzzle brake) and the M110A2 (fitted with muzzle brake).",
  "specs": [
    {
      "k": "",
      "label": "Manufacturer",
      "section": "system",
      "v": "General Motors Corp.",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "crew",
      "v": 5,
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Chassis",
      "section": "mobility",
      "v": "chassis identical to the M110's",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Displacement time",
      "section": "system",
      "v": "1 min",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Emplacement time",
      "section": "system",
      "v": "1 min",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "width_m",
      "v": 3.15,
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "combat_weight_t",
      "v": 31.2,
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "engine_name",
      "v": "1 x Detroit Diesel 8V-71T Engine",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "engine_hp",
      "v": 805,
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "road_range_km",
      "v": 523,
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "speed_road_kmh",
      "v": 55,
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "speed_xc_kmh",
      "v": 15,
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Fording depth",
      "section": "mobility",
      "v": "1.2 m",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Suspension",
      "section": "mobility",
      "v": "Torsion bar, 5 road wheels, front drive, last road wheel acts as rear idler, shock absorber on each road wheel, no return rollers ability to lock suspension out when firing rear-mounted hydraulic spade for bracing firing platform.",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Rate of fire (max)",
      "section": "armament",
      "v": "2+ rd/min",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Max elevation",
      "section": "armament",
      "v": "+65 deg",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Min elevation",
      "section": "armament",
      "v": "-2 deg",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Thermal Sight Vehicle Commander",
      "section": "firecontrol",
      "v": "Infrared night-vision equipment",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Thermal Sight Gunner",
      "section": "firecontrol",
      "v": "Infrared night-vision equipment",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Hull Armor",
      "section": "protection",
      "v": "20-mm maximum (estimated)",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Turret Armor",
      "section": "protection",
      "v": "20-mm maximum (estimated)",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "NBC Protection",
      "section": "protection",
      "v": "Yes",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "main_armament",
      "v": "M201 Howitzer, 203mm Howitzer",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium"
    },
    {
      "k": "range_max_km",
      "v": 30,
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium",
      "label": "Maximum firing range",
      "note": "Longest-range ammunition listed"
    }
  ],
  "payloads": [
    {
      "name": "HERA",
      "role": "203 mm ammunition",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium",
      "caps": {
        "Muzzle velocity": "710 m/s",
        "Projectile weight": "90.78 kg",
        "Fuze": "INA"
      },
      "range_km": 30,
      "qty": "2 ea"
    },
    {
      "name": "DPICM",
      "role": "203 mm ammunition",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium",
      "caps": {
        "Muzzle velocity": "711 m/s",
        "Projectile weight": "96.6 kig",
        "Fuze": "INA"
      },
      "range_km": 22.5,
      "qty": "2 ea"
    },
    {
      "name": "HE",
      "role": "203 mm ammunition",
      "src": [
        "weg-m110a1"
      ],
      "conf": "medium",
      "caps": {
        "Muzzle velocity": "713 m/s",
        "Projectile weight": "92.53 kg",
        "Fuze": "INA"
      },
      "range_km": 21.3,
      "qty": "2 ea"
    }
  ],
  "variants": [
    {
      "name": "M110A2",
      "text": "improved variant of the M110A1. It entered service in 1978 and was fitted with double muzzle brake. Maximum range of fire was increased to 29 km.",
      "src": [
        "weg-m110a1"
      ]
    }
  ],
  "art": "sph",
  "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/m110a1.html",
  "sources": {
    "weg-m110a1": {
      "title": "M110A1 American 203mm Self-Propelled Howitzer (SPH)",
      "publisher": "U.S. Army TRADOC G-2 Worldwide Equipment Guide (ODIN)",
      "url": "https://odin.t2com.army.mil/WEG/Asset/M110A1_American_203mm_Self-Propelled_Howitzer",
      "published": "2026-03-20",
      "tier": 1,
      "checked": "2026-10-10"
    }
  }
}