Blindage et surblindage des HMMWV

[eckers]

Et 7mm c'est donc inférieur au PVP. CQFD

[lrrps]

Je sais pas avec quoi ru as tiré mais a priori le 338LM traverse sans aucun souci 7mm d'acier de blindage.

Si ç'est de l'acier doux, oui.

[Berkut]

Ca dépendra de la mun, de l'angle, de la distance à la cible et de la qualité de l'acier. A priori, une FMJ .338 à 90° sur une pauvre innocente plaque d'acier balistique de 7mm non loin risque de faire un joli trou dedans vu qu'elle déchire 15mm RHA à 500m et désosse au moins du Classe IIIA à 1000m

[g4lly]

Si ç'est de l'acier doux, oui.

15mm d'HB400 a 500m ... c'est doux?!

[Berkut]

Si t'es derrière, pas vraiment :lol:

[lrrps]

La plaque était suspendue à 100 m, angle de tir 90° .

Si vous habitez la Normandie venez me voir, je me ferai un plaisir de vous faire la démonstration.

[Serge]

Voici le nouveau programme de protection des Hummer:

Textron Marine & Land Systems Awarded Contract to Provide Innovative Approaches for Protecting HMMWV Vehicles

NEW ORLEANS, LA --- Textron Marine & Land Systems (TM&LS) announced today that it has been awarded a $3.29 million firm-fixed price contract from the U.S. Army Tank-Automotive and Armaments Command for work on the Modernized Expanded Capacity Vehicle Survivability (MECV-S) system. TM&LS is teaming with Granite Tactical Vehicles to deliver innovative crew protection and vehicle survivability enhancements for the Army's HMMWV vehicles. The program's follow-on potential is for work on up to 5,750 vehicles.

The Army is seeking technical solutions to address current and future threats to its HMMWV tactical vehicle fleet through the use of scalable armor technologies. The TM&LS/Granite team will install its MECV-S protection system, a production-ready Technology Readiness Level 8 system, on two government-furnished HMMWVs and deliver them this summer to Aberdeen Proving Ground, Md. for Improvised Explosive Device testing. Computer Aided Design models also will be submitted for analysis.

"Our TM&LS/Granite MECV-S solution would replace the current HMMWV crew compartment in a one-for-one exchange. It offers vehicle occupants an armored monocoque V-hull protective capsule and restores the vehicle's tactical mobility with proven components," explains TM&LS Senior Vice President and General Manager Tom Walmsley.

The lightweight, highly-survivable TM&LS/Granite vehicle protection system possesses a lower center of gravity than an up-armored HMMWV and is resistant to small arms fire, blasts and the secondary effects of blasts such as fire, crushing, rollover and collision. It is compatible with all versions of HMMWVs currently in service and provides MRAP-style protection by incorporating angles and a V-shaped blast deflection under-body plate.

A system that is easily supported and maintained, the Textron/Granite solution also retains all of the original HMMWV cab's characteristics by utilizing existing controls, linkages and drive system.

Granite Tactical Vehicles, located in Mt. Airy, NC, is a designer and manufacturer of tactical vehicles for military applications, law enforcement agencies and private contractors. Granite has manufacturing capabilities comprised of an 180,000 square-foot industrial facility on a 20-acre site, and a nearby two-mile rough terrain test and proving ground, which includes a measured RMS course to study and verify vehicle performance.

Textron Marine & Land Systems designs, produces and supports advanced wheeled combat vehicles and cutting-edge maritime craft used by U.S. and international armed forces, as well as civilian entities around the globe. Its COMMANDO family of armored vehicles offers a full range of vehicle options delivering enhanced survivability, mobility, lethality and sustainability. Textron Marine & Land Systems' innovative turret technology and related subsystems also deliver outstanding performance and reliability.

http://www.asdnews.com/mobile/news/50027/Textron_Marine_&_Land_Systems_Awarded_Contract_to_Provide_Innovative_Approaches_for_Protecting_HMMWV_Vehicles.htm

[Chronos]

La caisse et le châssis ont l'air de mieux supporter ces blindages que les précédents.

Quid du remplacement du Hummer c'est un kit qui va surtout s'exporter non ?

Modifié le 8 juin 2015 par Chronos

[Serge]

Il peut s'exporter mais le but est de continuer à blinder les HMMWV jusqu'à l'arrivée massive des JLTV.

Ce kit est l'ancien SCTV.

Petit rappel:

En 2010, l'US Army a commandé le dernier lot de HMMWV.

Les HMMWV n'ont pas été prévus pour être blindés. Pourtant, dès la Somalie, les premiers kits apparaissent. Vient le programme ECV pour améliorer le véhicule sur tous les points. Malgré l'amélioration du châssis, celui-ci souffre. Avec les années 2000, commencent des guerres qui imposent des blindages toujours de plus en plus lourd.

Avec le vieillissement du parc, les HMMWV bénéficient d'un programme de reconstruction. Celui-ci rallonge la durée de vie des véhicules (20 ans) et offre des véhicules presques neufs pour un coût moindre (-25%). L'US Army profite de cette reconstruction pour intégrer un nouvel habitacle blindé. C'est la partie MECV-S que l'on voit aujourd'hui.

[Berkut]

Là en regardant les deux humvies, il n'y a plus un seul point commun entre le modèle de gauche et de droite. Je suis même pas sûr que le châssis soit le même, à part les pneumatiques (et encore...) il ne doit plus rien à voir d'identique sauf les éléments secondaires (éclairage, intérieur, etc...)

Par contre le "V-shape" du plancher est assez plat, je me demande si cela fait la différence.

[alpacks]

  En gros ils ont refait un Hummer qui n'a plus rien a voir a un Hummer ... Mais qui reste un Hummer ... Comme si il était capital de conserver absolument le design d'origine du Hummer  :P

  Autant réaliser un nouveau véhicule et tant pis si c'est la fin de la légende industrielle du Hummer ?

[Serge]

Evolution de l'ancien MECV-S, Textron et Granite présentent le SCTV :

Wednesday, October 23, 2013 10:58 PM

Textron Survivable Combat Tactical Vehicle System SCTV increases crew protection of HMMWV.

At AUSA 2013, Textron Marine & Land Systems and Granite Tactical Vehicle present an upgrade of armour to increase the crew protection of HMMWV light tactical vehicle. The Survivable Combat Tactical Vehicle (SCTV™) System offers occupants an armored monocoque v-hull crew capsule and restores tactical mobility with proven components.

HMMWV fitted with Survivable Combat Tactical Vehicle (SCTV) system at AUSA 2013, Defense Exhibition in Washington D.C., United States.

The Survivable Combat Tactical Vehicle Capsule is the protective capsule that replaces the current HMMWV crew compartment in a one-for-one exchange and is an integral component of the Textron/Granite total system integration.

The SCTV™ is a lightweight, highly protected system that is low in maintenance, rotary wing transportable, and compatible with all versions of HMMVWs currently in service. The solution capitalizes on previous training and maintains the characteristics of the original HMMWV cab by utilizing most of the existing controls, linkages and drive systems - the familiar and proven characteristics that make the HMMWV the vehicle of choice.

The SCTV™ HMMVW integrated vehicle system protects in-theater troops against blast and IED threats during combat operations on the asymmetric battlefield. The continuing need for substantial and sustained deployments across the full spectrum of operations requires innovative solutions to protect troops. Crew survivability has become a key performance parameter for all vehicle platforms. The SCTV™ has a lower center of gravity than an up-armored HMMVW and is resistant to small arms fire, blasts and the secondary effects of blasts such as fire, crushing, rollover and collision.

Pre-assembled SCTV™ components are easily transported by road, sea or air. The retrofit can be accomplished in fewer man-hours than the current armor and frag kits. The SCTV™ is low maintenance and supported by the military's existing parts inventory.

Modifié le 28 octobre 2013 par Serge

[Serge]

Une proposition pour redonner au Humvee sa mobilité originelle jusqu'à sa fin de vie :

Northrop Offers Back-to-the-Future Upgrade to Humvee Fleet

Military.com Oct 14, 2014 | by Richard Sisk

There is no funding in the Army budget for a Humvee upgrade, Northrop Grumman officials on Tuesday presented an upgrade to the military workhorse that would lighten the truck and extend its life in the fleet.

Northrop Grumman officials said they had come up with a back-to-the-future fix that would return the High Mobility Multi-Purpose Wheeled Vehicle (Humvee) to its original performance and payload designs of the 1980s while keeping the armor that was added to counter improvised explosive devices in Iraq.

"It's not a program of record," said Frank P. Simpkins, director for Land Forces Programs at Northrop Grumman, but "the Army has a 25-year plan for this system. They have to pull the money from somewhere. What we're showing them is a solution." Simpkins presented the upgrade at the annual meeting of the Association of the U.S. Army in Washington, D.C.

The Army is proceeding with the program to build the Humvee-replacement, the Joint Light Tactical Vehicle, which is scheduled to come on line by 2019-2021. However, the Army does not have the budget to completely replace the Humvee fleet with JLTV and Northrop Grumman officials said the Humvee will need to be upgraded.

"This vehicle (the Humvee) is still going to be in the inventory" through 2040, said Jeff Wood, a Northrop Grumman official. He also emphasized that the potential upgrade would not be in competition with the JLTV.

The proposed Northrop Grumman refits would involve upgrades to the Humvee's power train, suspension, dashboard, hydraulics and central tire inflation systems.

"This solution has been engineered to handle the weight of the armor. It's a bumper-to-bumper modernization," Simpkins said.

The fixes would cost about $145,000 per vehicle but would produce significant savings over the life cycles of the Humvee fleet, the Northrop Grumman officials said.

The upgrades would come in a kit and the installation could be performed while the Humvees are forward deployed, Simpkins said.

"I can turn it in a week," he said of the installation. "We've kitted it in a way that I can deliver this forward."

Several Humvees with the upgrades have been delivered to the Army for testing and training, Wood said. "I'm very confident that he have a good solution" to the degraded performance of the Humvees under the added weight of the armor, Wood said.

However, the Army has yet to render a verdict.

-- Richard Sisk can be reached at richard.sisk@monster.com

[Serge]

Une proposition pour redonner au Humvee sa mobilité originelle jusqu'à sa fin de vie :

Northrop Offers Back-to-the-Future Upgrade to Humvee Fleet

Military.com Oct 14, 2014 | by Richard Sisk

There is no funding in the Army budget for a Humvee upgrade, Northrop Grumman officials on Tuesday presented an upgrade to the military workhorse that would lighten the truck and extend its life in the fleet.

Northrop Grumman officials said they had come up with a back-to-the-future fix that would return the High Mobility Multi-Purpose Wheeled Vehicle (Humvee) to its original performance and payload designs of the 1980s while keeping the armor that was added to counter improvised explosive devices in Iraq.

"It's not a program of record," said Frank P. Simpkins, director for Land Forces Programs at Northrop Grumman, but "the Army has a 25-year plan for this system. They have to pull the money from somewhere. What we're showing them is a solution." Simpkins presented the upgrade at the annual meeting of the Association of the U.S. Army in Washington, D.C.

The Army is proceeding with the program to build the Humvee-replacement, the Joint Light Tactical Vehicle, which is scheduled to come on line by 2019-2021. However, the Army does not have the budget to completely replace the Humvee fleet with JLTV and Northrop Grumman officials said the Humvee will need to be upgraded.

"This vehicle (the Humvee) is still going to be in the inventory" through 2040, said Jeff Wood, a Northrop Grumman official. He also emphasized that the potential upgrade would not be in competition with the JLTV.

The proposed Northrop Grumman refits would involve upgrades to the Humvee's power train, suspension, dashboard, hydraulics and central tire inflation systems.

"This solution has been engineered to handle the weight of the armor. It's a bumper-to-bumper modernization," Simpkins said.

The fixes would cost about $145,000 per vehicle but would produce significant savings over the life cycles of the Humvee fleet, the Northrop Grumman officials said.

The upgrades would come in a kit and the installation could be performed while the Humvees are forward deployed, Simpkins said.

"I can turn it in a week," he said of the installation. "We've kitted it in a way that I can deliver this forward."

Several Humvees with the upgrades have been delivered to the Army for testing and training, Wood said. "I'm very confident that he have a good solution" to the degraded performance of the Humvees under the added weight of the armor, Wood said.

However, the Army has yet to render a verdict.

-- Richard Sisk can be reached at richard.sisk@monster.com

[Philippe Top-Force]

2 052 Humvee pour l'Irak, l'Afghanistan et d'autres pays; 2 293 camions tactiques pour l'Afghanistan http://t.co/whgLlAIjg3

— Philippe Top-Action (@top_force)

June 8, 2015