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8" Self-Propelled Howitzer M110
203mm Self-Propelled Howitzer M110A2
Type Self-propelled artillery
Place of origin United States
Specifications
Weight 28.3 metric tons (62,390 lb)
Length 10.8 m (Bad rounding hereScript error in)
Width 3.1 m (Bad rounding hereScript error in)
Height 3.1 m (Bad rounding hereScript error in)
Crew 13 (Driver, 2 Gunners, 2 Loaders, (8 Support Crew–Other Vehicle))

Armor 13 mm (.51 in)
Main
armament
8" (203 mm) M201A1 Howitzer
2 Rounds
Engine General Motors 8V71T, 8-cylinder, supercharged diesel
405 hp (302 kW)
Suspension Torsion bar
Operational
range
523 km (325 mi)
Speed 54.7 km/h (Script error mph)

The 8 inch (203 mm) Self-Propelled Howitzer M110 was the largest available self-propelled howitzer in the United States Army's inventory. It was deployed in division artillery in general support battalions and in separate corps- and Army-level battalions. Missions include general support, counter-battery fire, and suppression of enemy air defense systems. The M110 was exported to a number of countries and remains in service with three NATO armies — the Greek, Spanish and Turkish.

General characteristicsEdit

According to the operators manual, the M110's typical rate of fire was 3 rounds per two minutes when operated at maximum speed, and 1 round per 2 minutes with sustained fire. The M110 featured a hydraulically operated rammer to automatically chamber the 200+ pound projectile. These rammers were prone to breakdown and generally slowed operation of the gun, because the rammers required crews to completely lower the massive barrel before using it. Highly trained and motivated U.S. Army crews could achieve 2 to 4 rounds per minute by using the hand-operated manual rammer, which was essentially a heavy steel pole with a hard rubber pad on one end. Using the manual rammer was physically demanding, but crews were not required to lower the massive barrels nearly as much as with the hydraulic rammer.

The M110's range varied from 16,800 meters to approximately 25,000 meters when firing standard projectiles, and up to 30,000 meters when firing rocket-assisted projectiles.

History Edit

The heritage of the M110 goes back to the British 8 inch (203 mm) howitzer of World War I.

A number of these were used by the American Forces and the design used as the basis for their howitzer. The M110A2 is the latest version with double muzzle brake, the earlier A1 version had a plain muzzle. It first entered service with the US Army in 1963. It has been used in the Vietnam War by the United States Army, and in Operation Desert Shield and Operation Desert Storm by the British Army. The US Army and USMC relied on the M109 series 155 millimeter gun systems during this conflict; sending remaining M110s to Reserve/National Guard units. These units then took possession of M109s as they returned from service in the Gulf. The last round fired from an M110 took place at Ft. Drum NY on 23 June 1991. [1]

The gun system has been retired from US Army service; howitzers above 155 mm caliber are no longer effective as technology has closed the range and firepower gap, and heavier weapon systems require more resources to operate. Gun barrels from retired M110s were initially used as the outer casing in the manufacture of the GBU-28 bunker buster bomb.

The M110A2s were made from refitted M107 175mm SP Guns (Hunnicutt).

At the end of the Cold War under U.S. Division Plan 86, all armored and mechanized infantry divisions included a battalion of heavy artillery that included two batteries of M110A2 8" SP howitzers with 6 guns each for a total of 12 guns, plus one battery of nine MLRS rocket artillery.

ProjectilesEdit

ReferencesEdit

  1. UK M110 Artillery in action Gulf War 1991 http://www.youtube.com/watch?v=dJfcVG8mu_s
  • TM 9-2350-304-10 dated Oct. 1979

External linksEdit

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