M110 howitzer

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8" M110 self-propelled howitzer
Torsion bar
Maximum speed 30 mph (54.7 km/h)

The 8 inch (203 mm) M110 self-propelled howitzer is an American self-propelled artillery system consisting of an

suppression of enemy air defense
systems.

Description

According to the operator's manual, the M110's typical rate of fire was three rounds per two minutes when operated at maximum speed, and one round per two minutes with sustained fire. The M110 featured a hydraulically operated rammer to automatically chamber the 200 lb (91 kg)+ 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. Well trained and motivated crews could achieve two to four rounds per minute for short periods by using the manual rammer, 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 barrels as much as with the hydraulic rammer.

The M110's range varied from 10.4 mi (16.8 km) to approximately 16 mi (25 km) when firing standard projectiles, and up to 19 mi (30 km) when firing rocket-assisted projectiles.[2]

History

The M110 howitzer first entered service with the U.S. Army in 1963 and was used in the

5th Battalion 11th Marines, and the British Army's 32nd Regiment Royal Artillery.[3]

In 1977 the upgraded M110A1 entered service, featuring a longer M201 series barrel which gave an increased range. The M110A2 is the latest version with a double

Camp Atterbury as late as the summer of 1994.[4]

The howitzer has been retired from U.S. Army service having been replaced by the M270 Multiple Launch Rocket System.

The M110A2s were made from refitted M110s or M107 175 mm SP guns[5]

Dutch artillerymen with their M110 in firing position, 1972

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 SP howitzers with six guns each for a total of 12 guns, plus one battery of nine M270 Multiple Launch Rocket System rocket artillery.[citation needed]

Israel used M110s along with M107s during

PLO and Lebanese allies with deadly effect during Siege of Beirut.[citation needed
]

Iran used its M110s during Iran–Iraq War against Iraqi forces during its offensives against Iraq.[citation needed]

People's Protection Units.[citation needed
]

Projectiles

A 203 millimetre W33 nuclear artillery shell on display

Operators

Map with M110 operators in blue and former operators in red
U.S. Army M110A2 howitzers in a staging area prior to transport, Port of Antwerp, 1984

Current operators

Former operators

See also

  • List of U.S. military vehicles by model number
  • 2S7 Pion – Soviet L/55.3 203 mm self-propelled cannon
  • 2S4 Tyulpan – Soviet 240 mm self-propelled mortar
  • List of crew served weapons of the US Armed Forces
  • M55 – 203 mm self-propelled gun, predecessor to the M110
  • M107
    – a 175 mm self-propelled gun on the same chassis
  • Sholef – Israeli 155 mm self-propelled howitzer
  • T92 Howitzer Motor Carriage – a 240 mm howitzer M1 fitted on a M26 Pershing chassis

References

  1. ^ Defense Industry Bulletin, April 1968, p. 47.
  2. ^ "The M110 at Military-today.com".
  3. ^ 32 Regiment RA in action - Gulf War 1991
  4. ^ a b UK M110 Artillery in action Gulf War 1991
  5. ^ (Hunnicutt).
  6. ^ Thomas B Cochran; William M Arkin; Milton M Hoenig (1984). Nuclear Weapons Databook, Volume I: US Nuclear Forces and Capabilities (PDF) (Report). Natural Resources Defense Council. p. 47. Archived (PDF) from the original on 1 September 2021. Retrieved 22 June 2021.
  7. ^ Henry E Hudgins (January 1977). Aerodynamics, Dimensions, Inertial Properties and Performance of Artillery Projectiles (PDF) (Report). Picatinny Arsenal. p. 4. Archived (PDF) from the original on 19 December 2021. Retrieved 24 December 2021.
  8. ^ Stockholm International Peace Research Institute. "Transfers and licensed production of major conventional weapons". Retrieved 10 December 2011.
  9. ^ Defense Security Cooperation Agency. "Excess Defense Articles". Archived from the original on 14 January 2012. Retrieved 10 December 2011.
  10. ^ "Εξοπλισμός Εθνικής Φρουράς (Κύπρος)". www.ellinikos-stratos.com. Retrieved 3 July 2023.
  11. ^ "Deals in the Works". Federation of American Scientists. Retrieved 29 March 2011.
  12. ISBN 978-1-032-50895-5
    . Retrieved 19 August 2023.
  13. ISBN 978-0-7106-2686-8
    . Retrieved 19 August 2023.
  14. ^ Yusuke, Tsuge. "陸自最大サイズの巨砲「203mm自走りゅう弾砲」まもなく退役 進む"火砲リストラ" 最後の部隊は". Vehicle news. Retrieved 28 September 2023.
  15. ^ "昭和の名戦車「74式戦車」ついに完全引退！ 2024年3月をもって本州から戦車部隊が消滅【自衛隊新戦力図鑑】". Motor-Fan CAR. Retrieved 17 April 2024.
  16. ISBN 979-11-5598-079-8. Archived
    (PDF) from the original on 9 October 2022.
  • TM 9-2350-304-10 dated October 1979

External links

Wikimedia Commons has media related to M110 203 mm self-propelled howitzer.
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