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M110 155 mm projectile

October 28, 2023

The M110 155mm Projectile is an artillery shell used by the U.S. Army and U.S. Marine Corps. The M110 was originally designed as a chemical artillery round to deliver blister agents via howitzer as a replacement for the World War I-era 75mm chemical projectiles.[5] The design was later repurposed as a white phosphorus smoke round for marking, signaling, and screening purposes. The white phosphorus variants of the shell also have a secondary, incendiary effect.[6]

Projectile, 155mm Howitzer, M110/A1/A2
TypeArtillery Shell
Place of originUnited States
Service history
In service1940s–present
Used byUnited States
WarsWorld War II
Korean War
Operation Powerpack
Vietnam War
Invasion of Grenada
Invasion of Panama
Gulf War
War in Afghanistan (2001-2021)
Iraq War
Operation Inherent Resolve
Production history
Produced1940s–present
Specifications
Overall length26.8 inches (68.1 cm)[1]
FillingDistilled Sulfur Mustard (HD)
White Phosphorus (WP)[2]
Filling weight9.7 lb (4.4 kg) (HD)
14.6 lb (6.6 kg) (WP, M110 and M110A1)[3]
15.6 lb (7.1 kg) (WP, M110A2)[4]
Detonation
mechanism		Timed Fuze

Original design edit

Officially designated Projectile, 155mm howitzer, M110, the original round was a 26.8-inch (68.1 cm), steel shell with a rotating band near its base and a burster rod down its center.[7] The original shell typically contained 9.7 pounds (4.4 kg) of Sulfur mustard (H) or distilled sulfur mustard (HD), which would fill the hollow space in the shell.[8] As early as the 1960s, a white phosphorus version was created under the same designation with 14.6 pounds (6.6 kg) of white phosphorus filler. Both versions were designed for employment by the M114 Howitzer and the M44 Self-Propelled Howitzer for use as terrain denial (in the case of the mustard-filled versions), target-marking, and obscuration (in the case of the white phosphorus versions.[9])

Design variants and markings edit

M110 edit

The original version of the shell came in two variations, one filled with mustard (HD) (Projectile, Gas, Persistent, HD, 155mm Howitzer, M110) and one filled with white phosphorus (WP) (Projectile, Smoke, WP, 155mm Gun, M110). To distinguish between the two, the HD versions were gray marked with two, horizontal, green bands, like most other chemical artillery shells. The WP versions were gray with a single, horizontal, yellow band, as is standard for military smoke munitions.[10]

Both versions are now considered obsolete, with the WP version seeing updated versions in later incarnations of the shell.

The HD version has not been produced since the 1960s and was never used in combat. Remaining stockpiles of the HD version are in the process of being destroyed in accordance with the 1997 Chemical Weapons Convention.[11]

M110A1 edit

The first upgrade to the M110 shell is only slightly modified from the original, maintaining the 14.6 pounds (6.6 kg) white phosphorus filler weight of the original with slight modifications to the release mechanisms to make the shell more reliable. It is primarily used for signaling and small-scale screening missions.[12] The M110A1 is gray with a single, yellow, horizontal band, which is standard for military smoke munitions.[13]

M110A2 edit

The second upgrade to the M110 shell is more dramatically modified from the other two variants with thinner casing to increase the amount of filler that can be placed in the shell. The M110A2 contains 15.6 pounds (7.1 kg) of white phosphorus, which increases the duration of the smoke it produces. This change makes the M110A2 ideal for target marking and large-scale obscuration missions.[14] The M110A2 is gray with a single, yellow, horizontal band, which is standard for military smoke munitions.[15]

Similar projectiles edit

References edit

  1. ^ https://www.cma.army.mil/wp-content/uploads/PCD-Chemical-Munitions.pdf[bare URL PDF]
  2. ^ "Chemical Reference Handbook". 1967.
  3. ^ "Chemical Reference Handbook". 1967.
  4. ^ "M110 155mm Projectile".
  5. ^ https://www.cma.army.mil/wp-content/uploads/PCD-Chemical-Munitions.pdf[bare URL PDF]
  6. ^ "M110 155mm Projectile".
  7. ^ https://www.cma.army.mil/wp-content/uploads/PCD-Chemical-Munitions.pdf[bare URL PDF]
  8. ^ "Chemical Reference Handbook". 1967.
  9. ^ "Chemical Reference Handbook". 1967.
  10. ^ "Chemical Reference Handbook". 1967.
  11. ^ https://www.cma.army.mil/wp-content/uploads/PCD-Chemical-Munitions.pdf[bare URL PDF]
  12. ^ "M110 155mm Projectile".
  13. ^ "Chemical Reference Handbook". 1967.
  14. ^ "M110 155mm Projectile".
  15. ^ "Chemical Reference Handbook". 1967.

October 28, 2023
m110, projectile, m110, 155mm, projectile, artillery, shell, used, army, marine, corps, m110, originally, designed, chemical, artillery, round, deliver, blister, agents, howitzer, replacement, world, 75mm, chemical, projectiles, design, later, repurposed, whit. The M110 155mm Projectile is an artillery shell used by the U S Army and U S Marine Corps The M110 was originally designed as a chemical artillery round to deliver blister agents via howitzer as a replacement for the World War I era 75mm chemical projectiles 5 The design was later repurposed as a white phosphorus smoke round for marking signaling and screening purposes The white phosphorus variants of the shell also have a secondary incendiary effect 6 Projectile 155mm Howitzer M110 A1 A2TypeArtillery ShellPlace of originUnited StatesService historyIn service1940s presentUsed byUnited StatesWarsWorld War II Korean War Operation Powerpack Vietnam War Invasion of Grenada Invasion of Panama Gulf War War in Afghanistan 2001 2021 Iraq War Operation Inherent ResolveProduction historyProduced1940s presentSpecificationsOverall length26 8 inches 68 1 cm 1 FillingDistilled Sulfur Mustard HD White Phosphorus WP 2 Filling weight9 7 lb 4 4 kg HD 14 6 lb 6 6 kg WP M110 and M110A1 3 15 6 lb 7 1 kg WP M110A2 4 DetonationmechanismTimed Fuze Contents 1 Original design 2 Design variants and markings 2 1 M110 2 2 M110A1 2 3 M110A2 3 Similar projectiles 4 ReferencesOriginal design editOfficially designated Projectile 155mm howitzer M110 the original round was a 26 8 inch 68 1 cm steel shell with a rotating band near its base and a burster rod down its center 7 The original shell typically contained 9 7 pounds 4 4 kg of Sulfur mustard H or distilled sulfur mustard HD which would fill the hollow space in the shell 8 As early as the 1960s a white phosphorus version was created under the same designation with 14 6 pounds 6 6 kg of white phosphorus filler Both versions were designed for employment by the M114 Howitzer and the M44 Self Propelled Howitzer for use as terrain denial in the case of the mustard filled versions target marking and obscuration in the case of the white phosphorus versions 9 Design variants and markings editM110 edit The original version of the shell came in two variations one filled with mustard HD Projectile Gas Persistent HD 155mm Howitzer M110 and one filled with white phosphorus WP Projectile Smoke WP 155mm Gun M110 To distinguish between the two the HD versions were gray marked with two horizontal green bands like most other chemical artillery shells The WP versions were gray with a single horizontal yellow band as is standard for military smoke munitions 10 Both versions are now considered obsolete with the WP version seeing updated versions in later incarnations of the shell The HD version has not been produced since the 1960s and was never used in combat Remaining stockpiles of the HD version are in the process of being destroyed in accordance with the 1997 Chemical Weapons Convention 11 M110A1 edit The first upgrade to the M110 shell is only slightly modified from the original maintaining the 14 6 pounds 6 6 kg white phosphorus filler weight of the original with slight modifications to the release mechanisms to make the shell more reliable It is primarily used for signaling and small scale screening missions 12 The M110A1 is gray with a single yellow horizontal band which is standard for military smoke munitions 13 M110A2 edit The second upgrade to the M110 shell is more dramatically modified from the other two variants with thinner casing to increase the amount of filler that can be placed in the shell The M110A2 contains 15 6 pounds 7 1 kg of white phosphorus which increases the duration of the smoke it produces This change makes the M110A2 ideal for target marking and large scale obscuration missions 14 The M110A2 is gray with a single yellow horizontal band which is standard for military smoke munitions 15 Similar projectiles editM104 155mm Projectile M121 155mm Projectile M687 155 mm ProjectileReferences edit https www cma army mil wp content uploads PCD Chemical Munitions pdf bare URL PDF Chemical Reference Handbook 1967 Chemical Reference Handbook 1967 M110 155mm Projectile https www cma army mil wp content uploads PCD Chemical Munitions pdf bare URL PDF M110 155mm Projectile https www cma army mil wp content uploads PCD Chemical Munitions pdf bare URL PDF Chemical Reference Handbook 1967 Chemical Reference Handbook 1967 Chemical Reference Handbook 1967 https www cma army mil wp content uploads PCD Chemical Munitions pdf bare URL PDF M110 155mm Projectile Chemical Reference Handbook 1967 M110 155mm Projectile Chemical Reference Handbook 1967 Retrieved from https en wikipedia org w index php title M110 155 mm projectile amp oldid 1161957073, wikipedia, wiki, book, books, library,

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