DDG 1000 (Classe Zumwalt)

Avec son allure massive, ses deux tourelles et son étrave en éperon, le Zumwalt rappelle les cuirassés d'autrefois. Tête de série d'un nouveau programme de destroyers lance-missiles de l'US Navy, ce bâtiment doit être mis sur cale en 2009 aux chantiers Northrop-Grumman de Pescagoula. D'une longueur de 185 mètres pour un déplacement de 14.500 tonnes en charge, il sera extrêmement automatisé, ne disposant que de 150 hommes d'équipage. La silhouette très furtive des Zumwalt est inspirée des projets Arsenal Ship puis DD 21, jugés trop coûteux et abandonnés en 1997 et 2001. Le nouveau projet, baptisé DD(X) puis DDG 1000, verra l'adoption de matériaux composites pour les superstructures et l'adoption de radars à faces planes, encastrés dans celles-ci. Il y a quelques semaines, le choix de la turbine à gaz MT 30 de Rolls-Royce a également été fait pour équiper le bâtiment. Les deux machines, d'une puissance unitaire de 35 MW, permettront une vitesse maximale de 31 noeuds.

La mission principale de ces unités sera l'action vers la terre. A cet effet, ils disposeront de quatre lanceurs verticaux, soit un total de 80 cellules, capables d'accueillir des missiles de croisière Tomahawk, des missiles antinavires Harpoon ou des missiles antiaériens et anti-missiles balistiques SM-3. Un radier, situé à l'arrière, permettra de mettre en oeuvre deux embarcations rapides, le hangar étant quant à lui capable d'accueillir un hélicoptère et trois drones. La grande nouveauté proviendra de l'artillerie principale, composée de deux pièces de 155 mm. Ces deux canons du type Advanced Gun System (AGS) tireront des munitions capables d'atteindre des objectifs terrestres à plus de 180 kilomètres. Avec ce programme, l'artillerie fait donc son grand retour sur les navires, son rôle ayant été progressivement cantonné, après l'avènement du missile, aux missions défensives. En Europe, l'industrie italienne planche également sur le sujet, avec une munition de 127 mm à longue portée. C'est toutefois en Allemagne que le concept devrait voir le jour en premier, avec les quatre frégates du type 125. Ces navires devraient être dotés d'une version navalisée du canon de 155 mm PzH 2000.

A l'origine, l'US Navy prévoyait l'acquisition de 30 Zumwalt, afin de remplacer les destroyers de la classe Spruance. Toutefois, le prix très élevé de ces navires, estimé à 2.3 milliards de dollars pièce, a incité la marine américaine à réduire ses ambitions. Il n'est plus aujourd'hui question que de 12 destroyers et peut être même seuleme 8

source:http://www.meretmarine.com/article.cfm?id=104566

Citation :

Nom:
DD... ZUMWALT

Pays : Etats-Unis
Constructeur : Northrop-Grumman
Lieu de construction : Pescagoula (Etats-Unis)
Mise sur cale : 2009 // Lancement : 2011 // Mise en service : 2013

Caractéristiques techniques:
Déplacement : 14500 tonnes (10000 lège)
Dimensions : 185.00 x 24.60 x 8.40 (tirant d'eau)
Motorisation :
" 2 turbines à gaz Rolls-Royce MT 30
" 2 turbines à gaz General Electric LM 500
" 2 moteurs électriques à induction avancée Alstom
" 2 hélices
Vitesse : 31.00 noeuds
Puissance : 94660 CV - 69600 kW
Autonomie : 4500 nautiques à 20 noeuds

Armement:
" 4 lanceurs PVLS Mk 57 (80 missiles Tomahawk, Harpoon, SM-3, ESSM, VLA)
" 2 pièces de 155 mm AGS
" 2 canons de 57 mm
" Tubes lance-torpilles
" Hélicoptère et drones

Equipements électroniques:
Détection surveillance :
" Radar de veille tridimensionnel SPY-2
" Radar SPY-3 (désignation d'objectif, confuite de tir)
" Sonar de coque IUSW-21
" Sonar remorqué MFTA
Contre mesures :
" Brouilleur
" Détecteur
" Bruiteur remorqué
" lance-leurres SRBOC Mk 46
" Lance-leurres Nulka
" Leurre antitorpille SSTD
Système de commandement :
NFCS

Equipage:
Total : 150

Remarques:
Nouvelle série de bâtiments prévus pour remplacer les Spruance. 8 à 12 unités pourraient être construites.

http://www.meretmarine.com/bateauclasse.cfm?classeid=231

Photos concept:

ca bouge

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Raytheon Co., Integrated Defense Systems, Tewksbury, Mass., is being awarded a $217,000,000 cost plus fixed fee modification to a previously awarded contract (N00024-05-C-5346) for the procurement of two Volume Search Radar (VSR) for the Zumwalt Class Destroyer Program and USS Gerald R. Ford (CVN 78 ). Work will be performed in Moorestown, N.J. (95 percent) and Sudbury, Mass. (5 percent), and is to be completed by March 2013. Contract funds will not expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, D.C. is the contracting activity.

Citation :

Computer Sciences Corp., Defense Solution Division, Washington, D.C., is being awarded a $6,788,914 firm-fixed-price delivery order for support to the DDG 1000 program office. This effort provides technical, operational and programmatic support to PMS 500 in developing and analyzing strategies for the detail, design, and production of DDG 1000, and updating strategies to support evolving program requirements. This task includes collecting and analyzing data, preparing outlines and assisting in the preparation of status, information and decision briefings, issue papers, requirement documentation and study reports. In addition, the contractor shall develop and update management information files and presentation material required by PMS 500 as well as lessons learned and archives of both contractor and government created documents and briefs are considered to be a critical function. This contract contains options which, if exercised, would bring the cumulative value of this contract to $13,862,000. Work will be performed in Washington, D.C., and is expected to be completed by August 2009. Contract funds will not expire at the end of the fiscal year. This contract was not competitively procured. The Naval Sea Systems Command, Washington Navy Yard, D.C., is the contracting activity (N00024-09-F-B035).

Citation :

Two Band Tracking - The U.S. Navy Dual Band Radar (DBR) Program


06:49 GMT, May 5, 2010 NEWTOWN, Conn. | Raytheon announced on May 3 that the U.S. Navy has successfully tracked a target simultaneously at both X-band and S-band frequencies using an engineering development model (EDM) of the Dual Band Radar (DBR). According to Raytheon, the DBR is the first naval radar system capable of simultaneous, coordinated operation across two frequency ranges. The DBR is developed by prime contractor Raytheon and subcontractor Lockheed Martin

The DBR combines the Raytheon X-band SPY-3 multifunction radar and the Lockheed Martin S-band Volume Search Radar (VSR) and a common radar suite controller. During the test event, the DBR simultaneously used the SPY-3 and the VSR's search capabilities to acquire and track the target. The test also demonstrated the system's ability to perform automatic handover from the S-band to X-band in precision tracking mode, a key feature of the radar and its single track manager.

The DBR will provide surveillance and ship missile defense capabilities for the Zumwalt-class destroyer (DDG-1000) and the Ford-class aircraft carrier (CVN-78) in both littoral and deep water environments. Some Navy officials had also wanted to equip the future-build Arleigh Burke class (DDG-51) with the DBR. The leaders believed that adding a new radar to an older platform would increase the platform's capabilities while reducing costs compared to the DDG-1000. The question of which radar will sail on the new DDG-51 vessels appears to have been resolved. The Navy awarded Raytheon a contract in September 2009 for advance procurement of SPY-1D long-lead-time materials for the first of the new DDG-51 destroyers to be built under the revamped program.

Forecast International prepares a market intelligence report on the DBR suite that is included in the Electronics Systems Service. Market intelligence reports on the DDG-51 Arleigh Burke class, the DDG-1000 Zumwalt class and the Gerald R. Ford are included in FI's Naval Systems Warships Forecast.

Defpro
DBR Platform - DDG-1000 Zumwalt Class Destroyer

Blockhouse du DDG1000 a Norfolk ….un monstre de 900 to !

Citation :

Deckhouse of new destroyer ZUMWALT (DDG 1000) makes unplanned stop at Norfolk
Nov 6, 2012 By Christopher P. Cavasin

No, the strange-looking blockhouse structure is not yet a ship — but wait a few years, it’ll be back with a proper hull under it.
The appearance of the future USS ZUMWALT (DDG 1000) will be unlike any other ship in service, and the 600-foot-long destroyer is starting to come together at the General Dynamics Bath Iron Works shipyard in Bath, Maine.
The biggest component of the ship built elsewhere is the composite structure deckhouse, fabricated in Gulfport, Miss., by Huntington Ingalls and delivered to the U.S. Navy on Oct. 9. The 900-ton structure was loaded on a barge for transport to Maine.
The trip was interrupted this week as a nor’easter started brewing off the mid-Atlantic coast, and the tow put in to Norfolk, Va., Monday, Nov. 5 to wait out the storm. These Navy photos were taken the morning of Nov. 6, at the Norfolk Naval Base, where the ship is expected to stay for five to seven days, until the weather clears.
The photos provide an unprecedented look at the DDG 1000′s unique superstructure, loaded with embedded radars and other sensors. In keeping with the ship’s stealth-oriented design, the engine uptakes are completely inside the structure and vent out the top, and no masts will be fitted.
After the superstructure is installed, the ZUMWALT is expected to be launched next summer and delivered in fiscal 2014.
Two more ship of the class are under construction at Bath, the MICHAEL MONSOUR (DDG 1001) and LYNDON B. JOHNSON (DDG 1002).


Photos by Mass Communication Specialist 3rd Class Zachary S. Welch, U.S. Navy.

DefenseNews

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Delivery of First 2 Zumwalt DDGs Delayed

WASHINGTON — Problems with the complex technology being installed in the new destroyers of the Zumwalt class have forced the Navy and shipbuilder General Dynamics Bath Iron Works to delay delivery of the first two ships, the US Navy said Monday night.

The Zumwalt (DDG 1000) had been scheduled to be delivered to the Navy this summer, but that has dropped back to November. Delivery of the second ship, Michael Monsoor (DDG 1001), production of which is about a year behind Zumwalt, has also been pushed back a few months in 2016, to November of that year.

Work on the third and last ship in the class, Lyndon B. Johnson (DDG 1002), has not been affected, and that ship is still scheduled for delivery in December 2018.

"The schedule delay is due primarily to the challenges encountered with completing installation, integration and testing of the highly unique, leading edge technology designed into this first-of-class warship," Cmdr. Thurraya Kent, spokeswoman for the Navy's acquisition directorate, said in a statement.

The three ships are all under construction at GD's shipyard in Bath, Maine. Zumwalt was launched last October and is 94 percent complete, Kent said, and the ship is expected to begin engineering sea trials later this year. Monsoor is scheduled for launch this year as well.

Bath also builds Aegis destroyers of the DDG 51 Arleigh Burke class. Completion delays with Zumwalt and Monsoor could affect Aegis destroyer production, Kent indicated.

"Navy and General Dynamics Bath Iron Works continue to work together in evaluating schedule impacts for all ships under construction in Bath, Maine, which also includes ships under construction for the Aegis Class Destroyer Program," Kent said in the statement. "Both the Navy and BIW are committed to collectively managing risks and controlling costs to deliver both DDG 1000 and DDG 51-class ships to the fleet in the most efficient manner possible."

The DDG 1000 design features an innovative, integrated power system able to switch electrical power between propulsion, sensor and weapon systems, along with a new combat system and numerous technical innovations. The Pentagon's Office of Test and Evaluation did not discuss the DDG 1000 in its latest report on selected acquisition programs, issued in January, and in its report a year earlier did not discuss any major technical problems with the ships' construction.
http://www.defensenews.com/story/defense/naval/ships/2015/03/09/navy-shipbuilding-destroyer-zumwalt-stealth-monsoor-bath-iron-works-general-dynamics/24681311/