Overblog
Suivre ce blog
Editer l'article Administration Créer mon blog
20 mars 2015 5 20 /03 /mars /2015 12:30
M198 155mm howitzer being unloaded from a ship at Beirut’s port in Lebanon, February 8, 2015 photo Military In the Middle East

M198 155mm howitzer being unloaded from a ship at Beirut’s port in Lebanon, February 8, 2015 photo Military In the Middle East

 

March 20, 2015: Strategy Page

 

The United States recently sent Lebanon 72 M198 155mm howitzers and 25 million rounds of ammunition (mostly for rifles, but also thousands of mortar and 155mm shells). The U.S. valued the shipment at $25 million but that was being generous. The Americans began replacing their 1980s vintage M198s with M777s in 2007. Thus the United States has lots of M198s that were going to be scrapped or put in storage (and eventually scrapped). Artillery is much less in demand since the 1990s because of the development of cheaper and more accurate guided rockets and artillery shells. That said, the Lebanese were grateful for the American howitzers since these are still useful and Lebanon received them as a gift.

 

Until recently the M198 was the standard towed 155mm howitzer for the United States and many NATO counties. Each one weighs eight tons, and can fire conventional rounds as far as 22.4 kilometers. For rocket-assisted projectiles the range is 30 kilometers. These unguided shells land anywhere within a 200 meter circle. That's at 25 kilometers range. Accuracy gets worse at longer ranges. It takes 12 minutes for the M198 to be ready to fire after the truck towing it stops. It can pack up and move again in about 4 minutes. Using GPS the M198 can be in position to fire in less than ten minutes and shift to another target in about 8 minutes.

 

The M198 has been replaced by the M777A1 lightweight 155mm howitzers. The M777s cost $1.9 million each and the U.S. has bought 800 of them so far, for use by the army and marines (who are getting 377 of them). The manufacturer, BAE, has also received a contract to refurbish 33 M777s that returned from service in Afghanistan. This cost $91,000 per howitzer. The British designed howitzer is also used by Canada and Britain. The U.S. Army uses M777s in airborne and Stryker brigades. A five ton truck is used to tow the guns, but a special, 4.5 ton LWPM (Lightweight Prime Mover) is available to do that as well.

 

The five ton M777A1 is 40 percent lighter than the weapon it replaces, the M198. This is because the M777A1 makes extensive use of titanium, and new design techniques. It fires shells with a maximum range of 40 kilometers (using RAP, or rocket assisted projectile, ammo). A crew of five operates the gun, which can be ready to fire in under three minutes, and ready to move in under two minutes. The M777A1 is light enough to be moved (via a sling) by CH-53E and CH-47D helicopters. Its sustained rate of fire is two rounds a minute, with four rounds a minute for short periods.

 

What will really makes the M77A1 (and the M198) useful is the new GPS guided Excalibur shell which entered service in 2007. The Excalibur shell falls within a ten meter circle (the middle of that circle being the "aim point") at any range compared to the unguided shell that lands within a 200 meter (or larger) circle depending on range. The Excalibur shell is essential, because ten 155mm shells (of any type, with their propellant and packaging) weigh about a ton. Ammo supply has always been a major problem with artillery, and Excalibur is the solution making one shell where previously ten or more unguided ones were needed.

 

For users like Lebanon ammo supply is less of a problem because the howitsers will be operating within tiny Lebanon and never that far from a port or airbase were new supplies of ammo will arrive. Besides the U.S. isn’t giving any of the expensive Excalibur shells away.

Partager cet article

commentaires

Présentation

  • : RP Defense
  • RP Defense
  • : Web review defence industry - Revue du web industrie de défense - company information - news in France, Europe and elsewhere ...
  • Contact

Recherche

Articles Récents

  • Externalisation de la Défense et de la Sécurité en France ? - 15 Décembre
    Le Comité directeur de l'ANAJ-IHEDN a le plaisir de vous inviter à la conférence : Vers une externalisation de la Défense et de la Sécurité en France ? Guillaume FARDE Maître de conférences à Sciences Po Paris, auteur de Externaliser la sécurité et la...
  • Chronique culturelle - 24 Nov.
    24 novembre 1977 : premier vol du Super Etendard de série 24.11.2016 source JFP 24 novembre 885 : début du siège de Paris par les Vikings. Très actifs durant le IXè siècle, les Vikings ont pris l’habitude de remonter les fleuves du Nord de la France pour...
  • Sortie en librairie le 21 novembre du livre LÉGIONNAIRE
    source MAREUIL EDITIONS Pour la première fois, un ancien officier de la Légion et un Légionnaire donnent la parole à 64 de leurs camarades. Pendant 2 ans, Victor Ferreira a rencontré près d’une centaine de Légionnaires à travers le monde en leur posant...
  • Brazilian Navy H225M Naval Combat Configuration
    17 nov. 2016 Airbus Helicopters Helibras and Airbus Helicopters have opened a new chapter in the history of the H225M multirole utility helicopter with the official presentation of the first aircraft in naval combat configuration. More info Helibras and...
  • Chronique culturelle - 17 Nov.
    La Bataille du Pont d'Arcole - Horace Vernet 17.11.2016 source JFP 17 novembre 1794 : début de la bataille de la Sierra Negra (Espagne) « opposant les troupes des généraux de Pérignon et Dugommier à celles du général espagnol de Carvajal. Cette victoire...
  • Le CEAM présente le CEILDT - Centre d’Expertise et d’Instruction des Liaisons de Données Tactiques
    15 nov. 2016 CEAM Petit clip de présentation sur le Centre d’Expertise et d’Instruction des Liaisons de Données Tactiques (CEILDT). Petit clip de présentation sur le Centre d'Expertise et d'Instruction des Liaisons de Données Tactiques (CEILDT).
  • Audition de M. Marwan Lahoud, président du groupement des industries françaises aéronautiques et spatiales
    photo Aseemblée Nationale 9 novembre 2016 Commission de la défense nationale et des forces armées - Compte rendu n° 15 Présidence de Mme Patricia Adam, présidente — Audition, ouverte à la presse, de M. Marwan Lahoud, président du groupement des industries...
  • Chronique culturelle - 15 Nov.
    Jean Gabin, chef de char du Régiment Blindé de Fusiliers Marins 15.11.2016 source JFP 15 novembre 1315 : bataille de Morgarten (Suisse actuelle). Convoités à la fois par la Bavière et l'Autriche, les Cantons suisses (Uri, Schwytz et Unterwald) donnent...
  • Chammal : les artilleurs appuient les forces irakiennes
    10 nov. 2016 Ministère de la Défense Opération Chammal : les artilleurs de la Task Force Wagram appuient les forces irakiennes et participent à la sécurisation des zones conquises aux alentours de Mossoul. Opération Chammal : les artilleurs de la Task...
  • Chronique culturelle - 10 Nov.
    La bataille de Tolbiac, toile marouflée, Panthéon de Paris, France - Joseph Blanc (1846-1904) 10.11.2016 source JFP 10 novembre 496 : bataille de Tolbiac (Zulpich - Allemagne actuelle). Le roi Clovis écrase les Alamans près de l'actuelle ville de Cologne...

Categories