ATMOS (Autonomous Truck Mounted howitzer System) is a 155 mm/52 calibre self-propelled gun system manufactured by Israeli military manufacturer Soltam Systems.

ATMOS
An ATMOS system of the Philipine Army
TypeSelf-propelled howitzer
Place of originIsrael
Service history
In service2001
Wars2020 Nagorno-Karabakh conflict
Production history
ManufacturerSoltam Systems (now Elbit Systems)
Specifications
Crew2 to 6

Caliber155 mm (6.1 in)
Maximum firing range>40 km (25 mi) with ERFB-BB

The system is long range, fast moving, truck mounted with high firepower and mobility, rapid deployment, short response time, operable in all terrain areas. The system is integrated with a fully computerized system, providing an automatic control, accurate navigation and target acquisition, the system is offered with various gun barrel lengths, ranging from 39 to 52 calibre, in order to meet different customer requirements.

Overview edit

The ATMOS is fitted with a 155 mm/52 calibre ordnance which conforms to NATO Joint Ballistic Memorandum of Understanding (JBMoU), and is mounted on a 6 × 6 cross-country truck chassis. The breech mechanism is horizontal sliding which automatically opens to the right with a self-sealing metal obturating ring. The buffer is a hydraulic cylinder with a hydro-pneumatic recuperator, and the recoil length is variable from 850 to 1,100 mm. Two pneumatic equilibrators balance the barrel, weapon elevation and traverse are all hydraulic and computer controlled. The gun's aiming gears, load assist systems and spades are operated by a hydraulic power pack. With a 155 mm/52 barrel, a 41 km (25 mi) maximum range can be achieved, using Extended Range Full-Bore - Base Bleed (ERFB-BB) projectile,[1] 30 km (19 mi) firing the NATO L15 High Explosive (HE) projectile and 24.5 km (15.2 mi) firing the older M107 HE projectile.

The ATMOS 2000 carries a total of 27 155 mm projectiles and associated charges[2][unreliable source?] and can be operated by a 4-man crew, consisting of two loaders positioned on either side at the rear. The system provides a rate of fire of between 4 and 9 rds/min.

Development edit

 
52 calibre ATROM system

Late in 2001, Soltam Systems released details of the latest version of its ATMOS 2000 whose existence was first revealed late in 1999.[3] At that time, it was also referred to as the 155 mm Self-Propelled Wheeled Gun (SPWG). The ATMOS was developed as a private venture and is aimed mainly for export markets, although it has already been demonstrated to the Israel Defense Forces (IDF). Wheeled self-propelled guns are usually cheaper to procure than their more common tracked counterparts, have lower life cycle costs and are easier to operate and maintain. In addition, they also have greater strategic mobility and do not rely on Heavy Equipment Transporters (HETs). By late 2001, the system fired over 1,000 rounds, during extensive trials in Israel.

In mid-2003, an undisclosed export customer had placed a contract with the company worth USD5 million for an undisclosed batch of ATMOS 2000 systems. From late 2004 the Israel Defense Forces (IDF) carried out extensive field tests the ATMOS 155 mm/39 calibre system.[4]

Variants edit

  • ATROM – Romanian version that uses the same Soltam M-17 155mm gun on a locally developed ROMAN 26.360 DFAEG 6x6 truck chassis.[5] The system never entered production and the project was put on hold after three prototypes were built.[6]
  • AHS Kryl – Polish version on a Jelcz 663 armoured 6×6 chassis and integrating WB Electronics "Topaz" artillery fire control system. Production was planned for 2021, but never started.
  • M758 ATMG - Thai version on a Tatra armoured 6×6 chassis jointly developed by Soltam and DTI. 24 systems were in service as of 2023.[7]

Operators edit

 
Map of ATMOS 2000 operators in blue

Current operators edit

  Azerbaijan
  Botswana
  Cameroon
  Denmark
  Philippines
  Thailand
  Rwanda
  Uganda
  Zambia

Future operators edit

  Colombia
  • Colombian Army: The Colombian Army will acquire 18 units of the self-propelled howitzer developed by the Elbit Systems.[21]
  Israel

Potential operators edit

  Brazil
  Romania
  • Of the five self-propelled artillery battalions, three are to be tracked and two are to be wheeled.[24] According to Gen. Incicaș, the chief of the General Directorate for Armaments, the wheeled battalions are intended for the Vânători de munte, while the tracked battalions are intended for the heavy infantry units and the 282nd Armored Brigade.[25] Currently, Elbit Systems is confirmed to participate with the ATMOS system in the contract bid.[24]
  Bulgaria

Evaluation only edit

  Poland
  Romania
  • ATROM variant prototypes only, the system never entered production.[5]
  United States
  • The US Army is interested in a more mobile artillery platforms. Some "Mobile Howitzer Trials and Shoot-Off" had been occurring in 2021.[28] The systems tested were the CAESAR, the ATMOS 2000, the Archer and the Nora B-52. The Army was impressed by the Archer,[29][unreliable source?]also very positive with the CAESAR.[30] But not much has filtered about potentially ordering one of these systems. As some M777 howitzers were donated to Ukraine, it is certainly possible that the Army would consider a truck mounted variant to compensate as a gap filler to cover the donated howitzers. But ultimately decided to not move forward with the decision.

See also edit

References edit

  1. ^ "ATMOS 155mm truck-mounted howitzer for increased mobility and enhanced firing capabilities" (PDF). Elbit Systems. Archived (PDF) from the original on 5 June 2023.
  2. ^ "Atmos 2000 155mm Self-Propelled Artillery System". Army Technology. Archived from the original on 1 December 2023.
  3. ^ "ATMOS 2000 155 mm self-propelled gun-howitzer". militarytoday.com. Archived from the original on 7 August 2023.
  4. ^ Pengelley, Rupert. "Soltam offers ATMOS as mobile modular 155mm fire support solution". faqs.org. Archived from the original on 29 June 2011.
  5. ^ a b "ATROM 155 mm self-propelled gun-howitzer". militarytoday.com. Archived from the original on 14 November 2023. Retrieved 16 September 2023.
  6. ^ "Modern Romanian Armour". tanks-encyclopedia.com. Archived from the original on 7 January 2024. Retrieved 16 September 2023.
  7. ^ a b Grevatt, Jon (31 August 2022). "Defense & Security 2022: Royal Thai Army expands artillery production". Janes. Archived from the original on 20 March 2023.
  8. ^ a b "SIPRI Arms Transfers Database". Stockholm International Peace Research Institute. Retrieved 7 December 2013.
  9. ^ The Military Balance 2018 (1st ed.). Routledge. 14 February 2018. p. 463. ISBN 9781857439557.
  10. ^ The Military Balance 2010 (1st ed.). Routledge. 2 February 2010. p. 298. ISBN 9781857435573.
  11. ^ Fiorenza, Nicholas (4 August 2023). "Denmark receives first ATMOS SPHs and PULS MRLs". Janes. Archived from the original on 24 December 2023.
  12. ^ Jørgensen, Lars Bach (26 January 2023). "Denmarks buys artillery system and rocket launchers from Israel". TV2 (in Danish). Archived from the original on 3 October 2023.
  13. ^ "Se video af nyt ildstøttesystem til Forsvaret" [See video of new fire support system for the Armed Forces]. The Ministry of Defence's Materiel and Procurement Agency (in Danish). 26 January 2023. Archived from the original on 29 September 2023.
  14. ^ Mangosing, Francis (5 January 2022). "Israeli self-propelled howitzers delivered to PH Army". INQUIRER.net. Archived from the original on 15 November 2023. Retrieved 8 January 2022.
  15. ^ Grevatt, Jon (4 November 2013). "Elbit, Thai industry collaborate on ATMOS 155 mm SP howitzer". Janes. Archived from the original on 9 November 2013. Retrieved 7 November 2013.
  16. ^ "Royal Thai Army Expands M758 Autonomous Truck-Mounted Gun (ATMG) Production". MilitaryLeak. 14 November 2023. Archived from the original on 14 November 2023. Retrieved 14 November 2023.
  17. ^ Binnie, Jeremy (7 November 2016). "Rwanda exercises new ATMOS 2000 howitzers". Janes. Archived from the original on 8 November 2016. Retrieved 7 November 2016.
  18. ^ "Rwanda armed forces equipped with ATMOS and PLZ-89 howitzers". Army Recognition. 20 November 2017. Archived from the original on 26 September 2023.
  19. ^ The Military Balance 2010 (1st ed.). Routledge. 2 February 2010. p. 331. ISBN 9781857435573.
  20. ^ Cherisey, Erwan de (22 June 2021). "Zambian military parades new equipment". Janes. Archived from the original on 29 May 2023.
  21. ^ Saumeth, Erich (3 January 2023). "Colombia da marcha atrás en el último minuto y opta por el Atmos en lugar del Caesar" [Colombia backs down at the last minute and opts for the Atmos instead of the Caesar]. Infodefensa (in Spanish). Archived from the original on 12 May 2023. Retrieved 4 January 2023.
  22. ^ Azulai, Yuval (4 April 2017). "Elbit selected to develop IDF artillery capability". en.globes.co.il. Archived from the original on 2 September 2023.
  23. ^ Caiafa, Roberto (12 July 2021). "Exército Brasileiro avalia compra de 36 obuseiros autopropulsados de 155 mm" [Brazilian Army evaluates purchase of 36 155 mm self-propelled howitzers]. Infodefensa (in Spanish). Archived from the original on 8 October 2022. Retrieved 6 October 2022.
  24. ^ a b "Mașina de luptă ASCOD și obuzierul pe roți ATMOS pot ajunge în România via Automecanica Moreni. Parteneriatele urmează să fie parafate" (in Romanian). 31 October 2023.
  25. ^ Cite error: The named reference Incicaș was invoked but never defined (see the help page).
  26. ^ Ангелов, Георги А. (12 September 2023). "Ракети, радари, бронирани машини. Как България се разбърза да превъоръжи армията заради агресията на Русия" [Missiles, radars, armored vehicles. How Bulgaria hastened to rearm the army because of Russia's aggression]. Свободна Европа (in Bulgarian). Archived from the original on 1 December 2023. Retrieved 24 September 2023.
  27. ^ Dombe, Ami Rojkes (10 March 2016). "The Polish Army Will Receive Self-Propelled Howitzer Based on Elbit's ATMOS". Israel Defense. Archived from the original on 16 April 2023.
  28. ^ Lye, Harry (19 May 2021). "UK eyes US mobile howitzer shoot-off to inform Mobile Fires Platform". Army Technology. Archived from the original on 2 October 2023. Retrieved 15 April 2023.
  29. ^ "BAE Systems' 155mm ARCHER successfully completes U.S. Army's shoot-off evaluation". BAE Systems. 11 October 2021. Archived from the original on 15 April 2023.
  30. ^ Lagneau, Laurent (19 January 2022). "Artillerie : Le CAESAr du français Nexter se distingue aux États-Unis en tirant des obus "Excalibur"". Zone Militaire (in French). Archived from the original on 19 April 2023. Retrieved 15 April 2023.

External links edit

Video