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2 janvier 2012 1 02 /01 /janvier /2012 08:11

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AN /TPY-2 is the world's most advanced multi-functional, X-band radar

 

Dec 31, 2011 ASDNews Source : Raytheon Corporation

 

The Missile Defense Agency is awarding Raytheon Company (NYSE: RTN) a contract to provide two AN/TPY-2 radars to the U.S. Army as the radar component to the Terminal High Altitude Area Defense (THAAD) missile defense system. The firm-fixed-price contract is for $363.9 million.

 

"The AN/TPY-2 is the world's most advanced, mobile X-band radar," said Dave Gulla, vice president for Global Integrated Sensors at Raytheon Integrated Defense Systems. "It serves as the radar for the THAAD System, an important component of MDA's Ballistic Missile Defense System."

 

The AN/TPY-2 is a multi-functional radar that searches, detects, tracks and discriminates ballistic missile threats, seamlessly integrating with a variety of ballistic defense systems. In addition to supporting the U.S. Army in a terminal defense role as part of a THAAD Battery, AN/TPY-2 radars are deployed around the world providing continuous forward-based ballistic missile defense as a key component of the global Ballistic Missile Defense Architecture.

 

The most recent deployment of the AN/TPY-2 radar represents a major milestone in achieving the Administration's European Phased Adaptive Approach (EPAA), which aims to deter, dissuade, and, if necessary, defeat enemy ballistic missiles that threaten the U.S., deployed forces, friends and allies. The AN/TPY-2 is the critical sensor component of the EPAA.

 

Work on the AN/TPY-2 radars for this contract will be performed at Raytheon facilities in Massachusetts and by suppliers in 33 states.

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2 janvier 2012 1 02 /01 /janvier /2012 08:07

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Boeing file photo of a GMD test

 

Dec 30, 2011 AviationWeek.com

 

Boeing will retain its prime position in the U.S. Ground-based Midcourse Defense (GMD) missile defense system for another seven years now that it has won the nearly $3.5 billion Development and Sustainment Contract (DSC).

 

The Pentagon announced the win late Dec. 30 after regular trading had stopped on U.S. stock markets. Boeing - which had experienced management and technical problems over the years with GMD, to the displeasure of the Missile Defense Agency - prevailed against a team led by Lockheed Martin and Raytheon. Boeing is partnered with Northrop Grumman.

 

“This contract was competitively awarded following the receipt of two proposals,” according to the official Pentagon announcement. The scope of work under this contract includes, but is not limited to: future development; fielding; test; systems engineering, integration and configuration management; equipment manufacturing and refurbishment; training; and operations and sustainment support for the GMD weapon system and associated support facilities.

 

Fiscal 2012 research, development, test and evaluation funds will be used to initially fund efforts under the DSC, the Pentagon said.

 

“Today’s award is the culmination of a two-year proposal process that brought together a broad industry group committed to delivering innovative solutions and a cost-effective approach to program management and execution,” Dennis Muilenburg, president and CEO of Boeing Defense, Space & Security, said in a preparted statement.

 

“By combining Northrop Grumman’s 50-year experience and success on the nation’s Minuteman ICBM program with Boeing’s heritage GMD leadership, we provide the optimum mix of integrated development and sustainment capabilities for a system that demands nothing less,” said Wes Bush, chairman, CEO and president, Northrop Grumman.

 

“We believe the government conducted a fair and open competition, making the right decision for the future of the program,” said Norm Tew, Boeing vice president and program director of GMD.

 

An immediate statement from Lockheed was not available.

 

Despite the win, Boeing and the GMD are expected to come under continued scrutiny in Washington as federal budgets tighten and contractors are held to higher standards of accountability. Meantime, the Obama administration has favored Lockheed’s Aegis-based Phased Adaptive Approach to global missile defense versus GMD, which was promoted under the George W. Bush administration.

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31 décembre 2011 6 31 /12 /décembre /2011 08:25

A160-Hummingbird-photo-US-Army.jpg

 

30 décembre 2011 à 15h 33 par Stéphan Julienne L’USINE NOUVELLE

 

Trois appareils sans pilote, appelés A160 Hummingbird, vont faire leur entrée en mission de reconnaissance en Afghanistan d'ici à l'été 2012. Chacun de ces engins, développé par Boeing, peut voler jusqu'à 20 000 pieds. L'A160 est doté d'un mode de pilotage intelligent, d'un nouveau type de rotor ainsi que du dispositif ARGUS. Ce système permet en particulier de surveiller des zones de 65 km2. Il est capable de prendre des images de très haute qualité, à 1,8 gigapixel de résolution, très très loin devant le plus perfectionné des appareils photo reflex du marché.

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30 décembre 2011 5 30 /12 /décembre /2011 17:40

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30 décembre 2011 par Edouard Maire / INFO-AVIATION

 

Les militaires américains ont présenté leur nouveau drone hélicoptère A160, doté de puissantes caméras permettant d’obtenir des images de 1,8 gigapixel de résolution, a annoncé le 30 décembre la BBC.

 

Les trois premiers appareils, dénommés A160 Hummingbird, sont fabriqués par Boeing et devraient être utilisés pour la reconnaissance au Moyen-Orient. Ils vont profiter de la technologie du système Argus-IS (Autonomous Real-time Ground Ubiquitous Surveillance-Imaging System) qui a été déployé pour la première fois en 2011.

 

Cette technologie est basée sur un appareil photo 1,8 gigapixels – soit le plus grand capteur vidéo utilisé dans des missions tactiques.

 

Le système peut également filmer en temps réel à raison de 10 images par seconde. Une cadence suffisante pour suivre des personnes et des véhicules à des altitudes supérieures à 6000 mètres sur une zone de 168 km² selon l’armée américaine.

 

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Couverture du système Argus-IS depuis un A160.

 

Mais le principal avantage de ces nouveaux drones réside dans leur capacité de décoller et d’atterrir verticalement. La BBC rapporte qu’après des vols d’essais effectués en Arizona en début d’année, les drones seront envoyés en Afghanistan d’ici juin 2012.

 

« Ces aéronefs se déploieront durant une année complète comme un moyen d’exploiter les informations reçues et de les canaliser dans un programme d’enregistrement », a déclaré le lieutenant-colonel Matthew Munster, chef de produit à l’armée américaine dans l’unité de modernisation des systèmes de drones.

 

En outre, les opérateurs sur le terrain peuvent sélectionner jusqu’à 65 « cibles » distinctes de façon permanente. Les véhicules, les gens et d’autres objets peuvent être suivis automatiquement et simultanément, même s’ils se déplacent dans des directions différentes.

 

L’équipement du drone a en effet reçu de nouvelles antennes afin d’optimiser ses performances.

 

La DARPA (Defense Advanced Research Projects Agency) travaille sur les systèmes de drones avec BAE Systems (Royaume-Uni) pour développer une version plus avancée du capteur Argus-IS avec une vision de nuit. Selon l’agence américaine, les capteurs d’imagerie infrarouge seraient assez sensibles pour suivre « du personnel débarqué en pleine nuit ».

 

Une prochaine mise à jour permettra de suivre jusqu’à 130 « cibles » en même temps.

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30 décembre 2011 5 30 /12 /décembre /2011 13:35

David_sling_missile-photo-Rafael.jpg

 

December 30, 2011: STRATEGY PAGE

 

The U.S. has agreed to invest another $235 million in Israeli anti-missile efforts. The money is going to two systems. The less well-known one is the David's Sling/Magic Wand air and missile defense system being developed as a replacement for the American Patriot system. The Magic Wand missiles have a longer range (300 kilometers) and better capabilities than Patriot. The American manufacturer of Patriot is cooperating with work on Magic Wand and the U.S. investment gives America access to any new technology. Magic Wand is expected to be ready for service in 2-3 years and would eventually replace Israeli Hawk and Patriot anti-aircraft batteries.

 

A year ago there were successful tests of the Stunner missiles (yet another development of the Israeli Python heat seeking air-to-air missile) to be used by Magic Wand. Stunner apparently came out of the work to develop the Spyder anti-aircraft missile.

 

Spyder is a mobile short range system using, as many such systems do these days, air-to-air missiles. Spyder launchers (truck mounted, with four box like launch cells each) can carry either the Python 5 heat seeking missile (3.22 meters/ten feet long, 105 kg/231 pounds, with a range of 15 kilometers) or the Derby radar guided missile (3.6 meters/11.2 feet long, 122 kg/267 pounds, with a range of 65 kilometers). The Derby is actually a larger Python, with more fuel and a different guidance system. Stunner appears to be a slightly longer Spyder/Derby missile, with dual seekers in the nose.

 

The Spyder radar system has a maximum range of 100 kilometers. The missiles can hit targets as high as 9 kilometers (28,000 feet) and as low as 20 meters (65 feet). With boosters (to increase speed at launch) and the right seekers, a modified Spyder could take down incoming long-range rockets. Magic Wand depends on longer range radars to get target location and speed information to the Spyder/Magic Wand launchers. Once launched, the Stunner is guided to the general location of the incoming rocket, until the Stunner's on-board sensors pick it up, and then home in and destroy the long range rocket.

 

Then there is Arrow. In 2010 Israel formed a third battery of Arrow anti-missile missiles. The battery will have the new Oren Adir (Magnificent Pine) radar, which has a longer range and is better able to identify potential targets than the existing Green Pine radar. The two older batteries have over a hundred missiles available. An Arrow battery has 4-8 launchers, and each launcher carries six missiles in containers. The Arrow was developed to knock down Scud type missiles fired from Syria, Saudi Arabia or Iraq. The two ton Arrow 1 is being replaced with the 1.3 ton Arrow 2, which can shoot down longer range ballistic missiles fired from Iran. Israel is currently developing and testing an upgraded Arrow 2, which can take down longer range Iranian missiles. The even more effective Arrow 3 is not expected to be ready for use for at least three years.

 

The United States has long shared the expense of developing the Israeli Arrow anti-missile missile system. This includes contributing over a hundred million dollars for work on the Arrow 3. More than half the nearly three billion dollar cost of developing and building Arrow has come from the United States. In addition, American firms have done some of the development work, or contributed technology. The U.S. has also provided Israel with a mobile X-band radar that enables it to detect incoming ballistic missiles father away. Currently, the Israeli Green Pine radar can only detect a ballistic missile fired from Iran when the missile warhead is about two minutes from hitting a target in Israel. The X-band radar allows the Iranian missile to be spotted when it is 5-6 minutes away, enabling the Israeli Arrow anti-missile missile to hit the Iranian warhead farther away and with greater certainty. The Arrow 3 is expected to need something like the X-band radar, to take advantage of the longer missile range. The Arrow 3 could also use satellite or UAV warnings of distant ballistic missile launches. Arrow 3 weighs about half as much as Arrow 2 and costs about a third less. First tests of Arrow 3 are to take place next year.

 

In 2010 Israel began increasing the production of its Arrow anti-missile missiles. Costing over three million dollars each, and partly constructed in the United States (by Boeing), the Arrow missiles are Israel's principal defense against Syrian and Iranian ballistic missiles. Since Arrow entered service ten years ago, only about 120 missiles have been built. Currently, Israel has over a hundred Arrow missiles available, and would like to increase that to 200 in the next few years.

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30 décembre 2011 5 30 /12 /décembre /2011 12:35

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Le F-35 Lightning manque de furtivité… photo Lockheed Martin

 

28 décembre 2011 par Rédaction – Aerobuzz.fr

 

Le JSF (Joint Strike Fighter), programme d’avion d’arme le plus cher de l’histoire de l’aviation militaire qui atteint déjà 385 milliards de dollars, pourrait encore gonfler. Une récent rapport des autorités américaines pointe 13 défauts majeurs à corriger.

 

Le programme d’avion de combat furtif F35 JSF, qui compte parmi les plus chers de l’histoire de l’humanité, accumule les déboires. Un rapport des autorités américaines pointe 13 défauts qu’il convient de corriger avant d’envisager une quelconque mise en service.

 

Parmi les principaux problèmes détectés figurent la crosse d’appontage, inadaptée aux opérations sur porte-avions, le viseur de casque, la génération de puissance et la furtivité de l’appareil. Et cette liste à la Prévert n’est pas exhaustive, elle s’ajoute aux précédents défauts constatés au niveau des logiciels du système d’arme, des vibrations et de la fatigue structurelle excessive dans certaines phases de vol, sans oublier le vide vite qui se montre capricieux.

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La crosse d’appontage du F-35 Lightning est trop courte ! Lockheed Martin

Le rapport se montre magnanime en précisant qu’il n’a rien trouvé de nature à justifier un arrêt de la production cependant il est désormais probable que les correctifs à apporter aux appareils déjà en production vont faire exploser l’enveloppe budgétaire, pourtant colossale de 385 milliards de dollars attribuée au JSF. Certes il ne s’agit que de maladies de jeunesse, mais leur ampleur et l’importance des modifications à apporter démontrent la mauvaise gestion à tous les niveaux d’un programme qui se voulait le digne successeur du F16, un avion simple, polyvalent et économique. De ce point de vue, on peut dire sans se tromper que le JSF a raté sa cible.

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30 décembre 2011 5 30 /12 /décembre /2011 08:10

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29.12.2011 par Guillaume Belfiore - clubic.com

 

Le département de la Défense des Etats-Unis vient d'officialiser le premier terminal sous Android à destination des représentants du gouvernement américain.

Au mois de septembre nous rapportions que les services secrets américains étaient en train de concevoir un smartphone très sécurisé capable d'accéder aux dossiers confidentiels lorsque les agents sont en mission. De la NSA au département de la Défense en passant par les différentes branches gouvernementales, le smartphone en question, d'apparence très banale, serait proposé à tous les employés ayant accès à des données sensibles. L'agence Reuters rapportait alors que si le gouvernement dispose déjà de téléphones sécurisés, ces derniers sont cependant limités à la fonction d'appel. D'après un représentant de l'état, trop frustrés, les généraux auraient finalement changé pour revenir sur leur smartphone personnel dans le cadre de leur travail.

Jusqu'à présent, seuls les smartphones Blackberry de Research in Motion ainsi que la version 6.5 du système Windows Mobile avait obtenu l'approbation de la Défense américaine. Il semblerait cependant que les autorités se soient intéressées au niveau de sécurité des systèmes Android et iOS. Un premier smartphone a été approuvé, il s'agit du Dell Venue sur lequel une version spéciale d'Android 2.2 est greffée.

Couplé à un serveur distant, l'appareil offrirait ainsi les outils nécessaires pour la gestion des réseaux, des restrictions d'accès à l'appareil photo dans certaines situations, des fonctionnalités de synchronisation, un pare-feu ou encore des outils permettant de bloquer l'accès en cas de perte ou de vol. Dans un document mis à disposition du public, le département de la Défense précise que tous les smartphones Android susceptibles d'être retenus devront restreindre l'accès de l'utilisateur seulement aux applications mobiles préalablement approuvées par le département. Par ailleurs les applications commerciales devront pouvoir être hébergées sur un serveur central. Notons également que la connexion Internet devra être filtrée via un proxy.

Rappelons qu'en avril 2011 l'armée américaine avait choisi des smartphones Android pour équiper ses soldats. Un premier prototype, baptisé « Joint Battle Command-Platform », avait été mis au point par la société MITRE avec un kit de développement (Mobile/Handheld Computing Environment) mis à disposition cet été. L'écosystème ouvert d'Android semble d'ailleurs avoir été la principale raison de ce choix.

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29 décembre 2011 4 29 /12 /décembre /2011 08:40

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M2A3 Bradley Fighting Vehicle

 

28.12.2011 DRS - army-guide.com

 

DRS Technologies Awarded $24.5 Million Army Contract for Engineering and Support Services on the Improved Bradley Aquistition Subsystem (IBAS) used on M2A3 Bradley Fighting Vehicles

 

PARSIPPANY, NJ -- DRS Technologies, Inc., a Finmeccanica Company, announced that the U.S. Army has awarded the company’s Reconnaissance, Surveillance and Target Acquisition (RSTA) Group a $24.5 million contract to provide engineering services and support activities for the Improved Bradley Acquisition Subsystem (IBAS).

 

The new federal contract was awarded by the Close Combat Weapon Systems Project Office of the Aviation and Missile Command at the Army’s Redstone Arsenal. Under the contract, RSTA will provide level-of-effort (hours-based) support for program management, engineering, logistics, field service, repairs, product assurance, procurement and subcontract activity to support IBAS sustainment requirements.

 

“This latest contract awarded to DRS Technologies reflects the Army’s longstanding confidence in our joint efforts to continuously improve the IBAS subsystem, enhance its reliability and ensure a growing level of effectiveness,” said RSTA President Terry Murphy. “As the prime contractor for IBAS, DRS is exceptionally well-positioned to manage the full range of IBAS-related support activities with cost-effective solutions.”

 

IBAS is an upgraded target-acquisition and missile-control subsystem for the M2A3 Bradley Fighting Vehicle. Its technology includes a second-generation forward looking infrared camera, a daylight television camera, direct view optics, aided dual-target tracking, an eye-safe laser rangefinder and a two-axis stabilized head mirror. The improved subsystem offers greater reliability while reducing maintenance time and logistics costs when compared with previous systems.

 

The engineering services contract extends over five years, and began in September, 2011. RSTA, based in Melbourne, Fla., and Dallas, Tex., earned the contract based on experience and cost competitiveness.

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29 décembre 2011 4 29 /12 /décembre /2011 08:20

DARPA Logo

 

WASHINGTON, Dec. 28 (UPI)

 

A U.S. military project to develop new countermeasures to nerve agents is being previewed next month to potential contract bidders.

 

The U.S. Defense Advanced Research Projects Agency said the project would involve human butyrylcholinesterase, a bio-scavenger that binds a nerve agent in the blood stream before it can affect the nervous system.

 

"The use of chemical agents by enemy forces or terrorists poses a threat to U.S. troops and civilian populations," DARPA said. Human butyrylcholinesterase "has emerged as a potential new approach to reduce toxicity of chemical warfare nerve agents.

 

"A biological scavenger should have little or no behavioral or physiological side effects, which is an improvement over currently available treatments."

 

The workshop for possible proposers for collaborative contracts will be Jan. 20. DARPA will lay out its goal to demonstrate that recombinant butyrylcholinesterase can be expressed using a pharmaceutical platform in Nicotiana benthamiana plants.

 

Interested organizations have until Jan. 17 to register.

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29 décembre 2011 4 29 /12 /décembre /2011 08:00
Airborne Platforms Bolster Ocean Patrol

Photo: Boeing

 

Dec 28, 2011 By David Eshel - defense technology international

 

Tel Aviv - Regional threats to stability, growing tension over the exploitation of natural resources in economic exclusion zones (EEZ), the impact of piracy and terrorism, and criminal activities in the littorals are among factors driving demand for advanced airborne maritime surveillance assets.

 

Maritime surveillance is one of the fastest-growing defense markets, with countries seeking a range of technologies to improve their ability to monitor traffic in territorial waters and secure ports and other shore facilities from threats. For naval forces, airborne assets are needed to track and warn of submarine activities and protect disputed territories. Strong and effective surveillance is also a key component in assembling international coalitions for stability operations and in fighting piracy.

 

Effective and far-reaching maritime monitoring is a priority in the Middle East and Asia-Pacific. In the eastern Mediterranean, deep-sea drilling has yielded major deposits of oil and natural gas off Israel and Cyprus, and shown the importance of defending offshore rigs (DTI November, p. 22). In Asia the dramatic growth of the Chinese navy has increased tension with countries such as India over energy sources and territorial claims, and led to a surge in submarine fleets, and with it demand for maritime patrol and antisubmarine-warfare (ASW) aircraft.

 

The Lockheed P-3 Orion has compiled a decades-long record of maritime patrol, and is in use with the U.S. Navy and other maritime forces around the world. Modernization programs have kept the iconic aircraft relevant in a rapidly changing world of evolving threats and capabilities. Israel Aerospace Industries (IAI) was awarded two contracts worth $37 million to integrate the EL/M-2022A surveillance radar, developed by IAI and its Elta subsidiary, onto P-3s. The contracts were awarded by two undisclosed militaries that are upgrading their patrol aircraft. The radar sets were tailored to fit in the nose and tail. One forward-looking antenna will provide 240-deg. coverage and two additional antennas will provide 360-deg. coverage.

 

The EL/M-2022A is an advanced, multimode surveillance system incorporating synthetic aperture radar (SAR) and inverse SAR 3-D technology, as well as expertise gained by missions conducted by the Israeli military. EL/M-2022A can be deployed on maritime aircraft in support of ASW, EEZ patrols, coastal defense, drug smuggling and fisheries patrols, and search-and-rescue missions. The radar’s modular architecture permits integration onto rotary- and fixed-wing aircraft including unmanned aerial vehicles (UAV). It has a high degree of commonality with Elta’s EL/M-2032 fire-control radar. Excluding the operator’s console, EL/M-2022A hardware weighs less than 100 kg (220 lb.).

 

A patrol aircraft developed by Boeing, the P-8 Poseidon, will replace the U.S. Navy’s remaining P-3Cs. The P-8A is a long-range multi-mission platform. It has an advanced mission system that ensures maximum interoperability in battlespace. According to Boeing, all sensors on board contribute to a single fused tactical situation display, which is shared over military standard and Internet Protocol data links, allowing for seamless delivery of information among U.S. and coalition forces.

 

After several years of debate, the Navy decided to replace its specialized versions of P-3 reconnaissance aircraft with UAVs by the end of the decade. Northrop Grumman is team leader and prime contractor for the MQ-4C Broad Area Maritime Surveillance (BAMS) UAV. The high-altitude, long-endurance (HALE) platform is based on the Global Hawk, and designed to cruise at 60,000 ft. Unlike Global Hawk, which flies only at high altitude, MQ-4C is required to descend to lower altitude to get a closer view of suspected targets. To fly safely with manned and unmanned aircraft, the MQ-4C will be equipped with sense-and-avoid radar, which alerts an operator to air traffic in its vicinity. The MQ-4C will have 36-hr. endurance and operate at 60,000 ft., avoiding strong winds and severe weather. The payload is 3,200 lb. The UAV will have 2-D advanced, electronically scanned array radar for 360-deg. coverage of vast sections of ocean.

 

Another UAV for maritime use, Northrop Grumman’s MQ-8B Fire Scout, a vertical-takeoff-and-landing rotorcraft, accommodates a variety of sensors. It was deployed for the first time aboard the USS McInerney.

 

The P-8A and BAMS programs are in their advanced stages. Last January, Boeing received a $1.6 billion contract for low-rate initial production of the first six aircraft. Initial operational capability is slated for 2013. In 2008, the Navy awarded Northrop Grumman a $1.16 billion System Development and Demonstration contract for BAMS.

 

The P-8A/MQ-4C duo already provides a role model for Asia-Pacific nations that are challenged with covering vast ocean areas from shore bases. The Royal Australian Air Force, currently operating 18 Lockheed AP-3Cs, has expressed interest in the P-8A and its HALE component. As part of Project Air 7000 Phase 1, Canberra is expected to buy eight P-8As to replace its 18 AP-3Cs. The P-8A aircraft will be augmented by seven UAVs to fulfill the remaining roles. Australia completed the last upgrade of its AP-3Cs in 2005, which included the installation of an Elta’s EL/M-2022(V)3 maritime surveillance radar and a FLIR Systems Star Safire II thermal imager.

 

Israel is investing in its maritime surveillance and reconnaissance capabilities to protect new finds in offshore oil and gas deposits, which have become a security priority for coming years. One segment that will likely get much attention is enhancing unmanned maritime surveillance in the eastern Mediterranean, to guard the gas and oil drilling platforms being moved within Israel’s vulnerable EEZ and in other areas.

 

Eli Gambash, marketing manager for IAI’s Malat division, says the company’s Heron-1 and Heron-TP UAVs, equipped with the new EL/M-2022 inverse SAR and automatic identification system, are ideal for maritime surveillance, coastal protection and antipiracy missions. The Heron-TP has also been tested with SAR for maritime surveillance, with the antenna stored in a belly fairing. “The Heron-1 with Elta radar covers a 400-nm. radius and identifies objects amid the clutter of the sea with enormous precision,” says Gambash, a captain in Israel’s naval reserve. “With the Heron you can remain in a certain place, completely passive, yet be in full situational control.”

 

India is rapidly expanding maritime surveillance, targeting and ASW capabilities with acquisitions of advanced systems. The country is a pioneer in the use of unmanned systems for surveillance. Its navy has been operating Israeli Searcher II and Heron I UAVs for years—Searchers carry EL/M-2022U lightweight maritime surveillance radar, and Herons are equipped with a suite of sensors, including radar, electro-optic payloads, sigint, comint and electronic support measures sensors, and line-of-sight or satellite data links. Israel is believed to have offered the newer Heron-TP to India to augment current UAVs.

 

India is also embarking on two maritime patrol programs to upgrade the littoral surveillance capabilities of the navy and coast guard. New Delhi is evaluating a potential buy of six aircraft, as part of the navy’s Medium-Range Maritime Reconnaissance program. These aircraft would cover 500 nm., flying 6 hr. on station, and replace the navy’s Dornier Do-228 aircraft, currently used for littoral surveillance.

 

A similar platform is being considered to replace the coast guard’s Britten-Norman BN-2B Islanders.

 

A third program in the planning stage seeks nine amphibious aircraft for surveillance over territorial waters in the Andaman Sea. The platforms likely to meet the requirement are the CASA/IPTN CN235MP—produced and supported in Indonesia—and the Saab 2000 MPA. The latter will be offered with advanced AESA radar from Selex, addressing what Saab considers a new Indian requirement. The plane will be fitted to carry RBS-15 antiship missiles, manufactured by Saab Bofors Dynamics. Optional weapons include the Boeing Harpoon missiles India is buying for the P-8I, the Indian version of the P-8A aircraft.

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28 décembre 2011 3 28 /12 /décembre /2011 17:50

grounded-airbornE-laser-source-MDAA.jpg

 

December 28, 2011: STRATEGY PAGE

 

The U.S. Department of Defense has halted work on its U.S. Air Force ALT (Airborne Laser Testbed). The project will be put into storage, until such time as more effective technology is available to revive the effort, or it is decided that the ALT is not worth the storage expense. ATL has cost over $5 billion during the last 16 years. It never worked, at least not in a practical sense. A year ago, for the second time in a row, the ALT failed in an attempt to use its laser to destroy a ballistic missile. That time, the problem was with the radar and fire control system, which failed to lock the laser on the actual missile (although the radar did detect the actual missile launch.) In the past, the main problem has been a lack of power to drive the laser to lethal levels. Because of that, the ALT program has been an expensive near miss for nearly two decades. Two years ago ALT was demoted from a system in development, to a research program. The reason for this was all about energy supply. Even if ALT worked flawlessly, it does not have enough energy to hit a launching missile from a safe (from enemy fire) distance, ALT needs more than twenty times as much energy that it has now, and it will be a while before that problem is solved.

 

There have been some successes with this kind of weapon. Last year, the U.S. Navy successfully tested their laser weapon, using it to destroy a UAV. This was the seventh time the navy laser has destroyed a UAV this way. The laser cannon was mounted on a KINETO Tracking Mount, which is similar, but larger (and more accurate than) the mount used by the Phalanx CIWS (Close In Weapons System). The navy laser weapon test used the radar and tracking system of the CIWS. Last year, CIWS was upgraded so that its sensors could detect speedboats, small aircraft and naval mines. The problem here is that knocking down UAVs is not something that the navy needs help with, and the current laser gun technology has to be improved quite a bit before it's worth mounting on a ship.

 

Six years ago, manufacturers of combat lasers believed these weapons were only a few years away from battlefield use. To that end, Northrop-Grumman set up a new division to develop and build battle lasers. This optimism was caused by two successful tests seven years ago. In one, a solid state laser shot down a mortar round. In another, a much more powerful chemical laser, hit a missile type target. Neither of these tests led to any useable weapons, and the combat laser remains the "weapon of the future." The basic problems are reliability, and ammo (power to generate the laser).

 

Solid state lasers have been around since the 1950s, and chemical lasers first appeared in the 1970s. The chemical laser has the advantage of using a chemical reaction to create the megawatt level of energy for a laser that can penetrate the body of a ballistic missile that is still rising in the air hundreds of kilometers away. The chemical reaction uses atomized liquid hydrogen peroxide and potassium hydroxide and chlorine gas to form an ionized form of oxygen known as singlet delta oxygen (SDO). This, in turn is rapidly mixed with molecular iodine gas to form ionized iodine gas. At that point, the ionized iodine gas rapidly returns to its resting state, and while doing so releases photons pulsing at the right frequency to create the laser light. These photons are channeled by mirrors and sent on their way to the target (which is being tracked and pinpointed by other lasers). The airborne laser weighs about six tons. It can be carried in a C-130H, producing a laser powerful enough to hit airborne or ground targets fifteen kilometers away. The laser exists via a targeting turret under the nose of the aircraft. The laser beam is invisible to the human eye. The chemicals are mixed at high speeds, and the byproducts are harmless heat, potassium salt, water, and oxygen. A similar laser, flying in a larger aircraft (B-747 based ALT) was supposed to have enough range to knock down ballistic missiles as they took off. But the ALT never developed sufficient range to be an effective weapon.

 

Nearly half a century of engineering work has produced thousands of improvements, and a few breakthroughs, in making the lasers more powerful, accurate and lethal. More efficient energy storage has made it possible to use lighter, shorter range ground based lasers effective against smaller targets like mortar shells and short-range rockets. Northrops' move was an indication that the company felt confident enough to gamble its own money, instead of what they get for government research contracts, to produce useful laser weapons. A larger high energy airborne laser would not only be useful against ballistic missiles. Enemy aircraft and space satellites would also be at risk. But companies like Northrop and Boeing are still trying to produce ground and airborne lasers that can successfully operate under combat conditions. The big problem with anti-missile airborne lasers has always been the power supply. Lots of chemicals are needed to generate sufficient power for a laser that can reach out for hundreds of kilometers and do sufficient damage to a ballistic missile. To be effective, the airborne laser needs sufficient power to get off several shots. So far, no one has been able to produce such a weapon. That's why these lasers remain "the weapon of the future," and will probably remain so for a while.

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28 décembre 2011 3 28 /12 /décembre /2011 17:45

Predator-C-photo-General-Atomics.jpg

photo General Atomics

 

December 28, 2011: STRATEGY PAGE

 

The U.S. Air Force has decided to take a shortcut in developing its next generation tactical reconnaissance UAV (MQ-X) and simply adopt a beefed up version of the existing Avenger ("Predator C"). This jet powered aircraft was developed privately by the firm that makes the Predator and Reaper UAV that MQ-X will replace. Avenger took its first flight in early 2009. The air force has already agreed to buy at least one Avenger and send it to Afghanistan. Avenger test flights over the last two years were encouraging enough for the air force to adopt Avenger as the base design for MQ-X.

 

Development of the Avenger began nearly a decade ago. The first flight was supposed to have been four years ago but there were technical problems that kept coming up. Apparently it was worth the wait, as the U.S. Navy was impressed and particularly interested in using Avenger to replace the soon-to-be-retired EA-6Bs in their most dangerous attack missions. The air force likes the ability to arm Avenger with a smart bomb, including the 900 kg (2,000 pound) GBU-34 penetrator version.

 

Avenger appears to be a larger jet powered version of the five ton Reaper (Predator B). Avenger is 13.2 meters (41 feet) long, with a 20.1 meter (66 foot) wingspan, and built to be stealthy. The V shaped tail and smooth lines of the swept wing aircraft will make it difficult to detect by radar. There is a humpbacked structure on top of the aircraft for the engine air intake. There is an internal bomb bay to hold about a ton of weapons, sensors or additional fuel to provide another two hours of flying time (in addition to the standard 20 hours endurance). The 4,800 pound thrust engine is designed to minimize the heat signature that sensors can pick up. Total payload is 1.36 tons (3,000 pounds) and total weight of the aircraft is nine tons. Cruising speed is 740 kilometers an hour. The Avenger is designed to fly high (up to 20,000 meters/60,000 feet) and cross oceans. Until 2009 the Avenger didn't officially exist and was a "black" (secret) program. Avenger is, like Reaper, a combat UAV that will often carry weapons as well as sensors. Each Avenger costs about $15 million. The Avenger B would probably be a little larger, and more expensive. The air force has not yet revealed their wish list of changes for Avenger B.

 

All this attention to stealth should be no surprise. The Avenger manufacturer, General Atomics, has a division devoted to building stealth features into aircraft. This includes the world's largest indoor radar cross section testing facility. Despite the bomb bay the Avenger is expected to be used primarily to carry ground surveillance radar, which could be mounted on the bottom of the aircraft in an aerodynamically smooth enclosure.

 

The U.S. Navy has been interested in Avenger since the beginning of development. Thus the Avenger wings can be built to fold for use on carriers, and have a tail hook needed for carrier landings. The Avenger can operate from carriers. The Avenger uses landing gear from the F-5, an aircraft of the same weight class. The naval version is now called the Sea Avenger.

 

The navy, and several air forces, are also looking at the Avenger as an ELINT (electronic intelligence) aircraft. The ability to carry a ton of sensors and stay in the air for twenty hours per sortie has a lot of appeal for an aircraft that is already stealthy and doesn't carry a pilot. Moreover, the Avenger can perform ELINT missions entirely autonomously, making it more difficult to detect. General Atomics believes it can get the Predator C to operate (takeoff and land) from a carrier before any of the other contenders (mainly the 19 ton X-47). The Avenger weighs less than half as much and has an exemplary track record.

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28 décembre 2011 3 28 /12 /décembre /2011 12:50

http://www.aviationweek.com/media/images/defense_images/Ships/DDG1000NorthropGrumman.jpg

 

Northrop Grumman Concept

 

Dec 27, 2011 By Michael Fabey - defense technology international

 

The DDG-1000 Zumwalt-class destroyer brings out the split personality of U.S. Navy brass. Depending on which admiral is speaking on which day, the ship is either a science-project testbed or one of the most technologically advanced and needed destroyers for the fleet.

 

Analysts disagree about whether the ship is a joke, or potentially the Navy’s most valuable surface warship. And debate about the Zumwalt’s true worth to the fleet is heating up as the ship transitions from a PowerPoint presentation to vessel status.

 

Testing and development of the new technologies—e.g., hybrid drive, composite deckhouse, new guns—is on track or ahead of schedule. Indeed, the Navy says it is eyeing some of the futuristic work for bridge technologies on its next-generation fleet.

 

With November’s keel-laying of the first ship—already halfway built—and two contracts awarded in September for the remaining two hulls, there is some rethinking of the Navy’s plan to build only three ships. Part of that will depend on the results of a Government Accountability Office (GAO) investigation into the decision to restart the DDG-51 destroyer line—which helped cut the proposed Zumwalt fleet by more than half—to deploy more Aegis-equipped ships for quicker and more affordable ballistic missile defense (BMD).

 

Due in January, the GAO report is likely to steer the Navy toward buying more Zumwalts and fewer Burke-class ships because the DDG-1000 will likely be cheaper to operate and maintain, as well as a better platform for growth, say analysts such as Norman Polmar, a naval historian.

 

Others disagree. “They’re floating test- beds,” says Stuart Slade, naval analyst at Forecast International.

 

Not so, say program officials. “This is fully operational worldwide, globally deployable,” says Program Manager Capt. James Downey. “It is not . . . a test ship.”

 

“The Navy is looking for long-range, 24/7 surface-fire support,” says Bill Marcley, vice president of total ship mission systems and DDG-1000 program manager for Raytheon Integrated Defense Systems, a Zumwalt prime. “This is the only platform that can deliver that in all-weather conditions.”

 

For the U.S. Marine Corps, the vessel will fill the current void in long-range volume support fires. “The DDG-1000 has enormous capacity,” says Gen. James Amos, Marine Corps commandant.

 

The ship features a 74-mi.-range gun that shoots a guided projectile more than six times the distance with about three times the amount of explosives as the DDG-51’s guns, program officials note. The ship’s 155-mm Long Range Land Attack Projectile completed two live-fire tests this year.

 

But it is the perceived lack of another kind of firepower—the alleged inability of the ship to handle Standard Missiles (SMs) used for BMD—that concerns Navy leaders. Adm. (ret.) Gary Roughead said as much before he stepped down as chief of naval operations, adding it would be too much of an investment to make the necessary changes to the Zumwalt.

 

According to defense analysts and industry sources, the Zumwalt’s baseline design has always included an ability to fire Raytheon’s SM-2, though the Navy likely would have to modify the missiles. To fire the SM-3 BMD interceptor, sources say, the Zumwalt’s vertical launch system cell would have to be rewired and some combat system software might be modified, although it’s unclear how costly this would be. Navy officials acknowledge that “the DDG-1000 design could be configured to provide these [missile defense] capabilities,” the Congressional Research Service reports. Further, analysts note, the Zumwalt is designed to accommodate bigger missiles envisioned for the future.

 

Cost, though, is a factor when it comes to the DDG-1000. The Navy has invested $20 billion in the ships—half for R&D—and program officials say the production price is about $3.1 billion per ship, almost 50% more than a Burke on the restarted line and a third more than later DDG-51s, according to sources.

 

But Zumwalt lifecycle costs should more than make up any Burke acquisition savings, analysts say, because the ship design cuts shipboard personnel by half and hourly operating costs by a third, according to GAO. The Navy stands to save $18 billion over the life of the initial 32 ships for the advanced destroyers, according to GAO—about $600 million per ship in 2002 dollars.

 

A 10-ship Zumwalt fleet, according to other government estimates, would save the Navy $4.5 billion, when the tally includes recruiting, training and benefits. A three-ship fleet would save $1.8 billion.

 

Detractors say the ship may not live up to its potential. The naysayers will be proved wrong, respond Raytheon and Navy program officials, when the Zumwalt is delivered in 2014.

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28 décembre 2011 3 28 /12 /décembre /2011 08:20

http://www.aviationweek.com/media/images/defense_images/Fighters/AT-6s-JimHaseltine.jpg

 

Photo: Jim Haseltine

 

Dec 27, 2011 By Michael Bruno - aerospace daily and defense report

 

Congressional auditors in Washington have dismissed a bid protest by Hawker Beechcraft, which the company filed after being ruled out of consideration for a U.S. Air Force light air support aircraft program.

 

The U.S. Government Accountability Office (GAO) decision, dated Dec. 22 and released Dec. 23, indicates that Hawker’s protest was based on procedural issues regarding timeliness of notifications — arguments that the GAO dismissed.

 

But the GAO ruling also provides insight into the Air Force’s decision-making over the light air support (LAS) competition to provide 20 light-attack/advanced-trainer aircraft to the Afghan air force — namely, that the service found the company’s AT-6 proposal insufficient.

 

According to the ruling, the Air Force concluded that Hawker had not adequately corrected deficiencies in its proposal and that “multiple deficiencies and significant weaknesses found in [Hawker’s] proposal make it technically unacceptable and results in unacceptable mission capability risk.”

 

Hawker representatives could not immediately be reached for comment, and more information was not provided in the GAO ruling.

 

The Air Force decision appeared to leave Embraer’s Super Tucano as the only offering for the contract (Aerospace DAILY, Nov. 23). The Air Force is to purchase the aircraft with money from the U.S.-bankrolled Afghan Security Forces Fund. The Air Force, meanwhile, also was looking to buy more aircraft for itself to use to train allied forces, although that move might be delayed or canceled by Congress as Washington wrestles with tightening budgets.

 

Even though other companies showed interest in the light-attack requirement when it first emerged, only the AT-6 and Super Tucano were evaluated by the Air Force in a flyoff conducted in January as part of the LAS competition.

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27 décembre 2011 2 27 /12 /décembre /2011 18:25

http://www.aviationweek.com/media/images/defense_images/Fighters/F22Line-LockheedMartin.jpg

 

Photo: Lockheed Martin

 

Dec 27, 2011 By Amy Butler - aviation week and space technology

 

Washington - With the final F-22 rolling off Lockheed Martin’s assembly line last week, the Marietta, Ga., facility is now focusing its efforts on making its C-130J and C‑5M operations more efficient.

 

The Raptor business is not dead, though. A massive program, once estimated to cost as much as $8 billion to modify the twin-engine stealthy fighters, is under way and delivering through the next several years.

 

The $67 billion F-22 program was the Air Force’s most ambitious fighter project to date. While this led to the fielding of a revolutionary capability—craftily dubbed the “fifth-generation” fighter capability by Lockheed Martin’s marketing officials when it was eyed for termination over less-expensive legacy models—it also embodied an ethos in the Air Force to pursue high technology at all cost.

 

Civil and military onlookers suggest that this ambition took on a life of its own and eventually became a weakness. This came to head in June 2008 when then-USAF Chief of Staff Gen. T. Michael Moseley and then-USAF Secretary Michael Wynne were asked by then-Defense Secretary Robert Gates to resign following multiple missteps, including unauthorized lobbying by the Air Force to buy more F-22s than approved by Gates.

 

After 20 years of design and production, what began as an effort to buy 650 fighters capable of evading former Soviet radar defenses to escort bombers to targets there came to an end with Raptor 195 rolling out of the final assembly facility Dec. 13—22 years after the Berlin Wall came down. The USAF has purchased 187 combat F‑35s with eight test models.

 

The F-22’s tooling, which once covered 250,000 sq. ft. of the plant and employed, at its peak, 900 people, will now be dismantled for storage; 150 workers remain dedicated to final checkout and testing of the last Raptor. Delivery to the Air Force, its only customer since the U.S. forbade international sales, is slated for next year.

 

Tooling from Lockheed’s F-22 work in Fort Worth and Boeing’s wing and aft-fuselage facility in Seattle has been categorized and put in storage at the Sierra Army Depot in California, says Jeff Babione, vice president and general manager of the F-22 program. The remainder of the tooling in Marietta will be sent to California by the end of next year.

 

In preparing the tooling for storage, Babione says Lockheed was able for the first time to use multimedia resources. The goal is that future workers who need to pull items out of storage to craft a part will have videos of today’s line workers’ methods for reference.

 

This has already been put to the test. An inlet part for a Block 20 aircraft at Tyndall AFB, Fla., needed to be replaced though there was no spare requirement for it. Parts were located in storage and electronic book references helped workers to craft the item, Babione says.

 

Once the F-22 tooling in Marietta is stored, the space will be dedicated to parts to support growing C-130J production—the rate has recently increased to 36 per year—as well as the C-5M retrofit line. “The current flow is not optimum for those two lines,” Babione says, adding that travel time for tasks on the production floor are expected to decrease once the new parts storage area is established.

 

Though the company has been ramping down employees and investment on the F-22 since the Pentagon decided in 2009 to end its purchases, there is still some overhead from the program that will be absorbed by other programs in Lockheed Martin Aeronautics Systems, including the C-130J, C-5M and F-35. “They will all see an increase in their rates because of the loss of the work in this factory,” Babione says.

 

Overhead has been an issue of interest for senior Pentagon officials as they negotiate new contracts against the backdrop of potentially draconian spending cuts to defense. Earlier this month, Brett Lambert, industrial policy chief at the Pentagon, noted that some contractors still must shrink their physical footprints for savings.

 

Lockheed officials contend that the new parts storage area will prove valuable to the customer by providing efficiencies in assembling the airlifters.

 

Meanwhile, the company is continuing work on modification packages for the Raptor. The first, increment 3.1, will be fielded in the next two years and is designed to use the active, electronically scanned array radar to provide mapping from “extremely long ranges,” and allow for improved autonomy to attack ground targets with the new 250-lb. Small-Diameter Bomb. Also included are some undisclosed electronic protection systems.

 

Two smaller updates—4 and 5—designed for AIM-120D and AIM-9X launches, respectively, are slated to be finished around 2015.

 

The next major increment—3.2—will include the long-awaited integration of Link 16 onto the F-22 to finally allow it to communicate with legacy fighters. It will also include improvements by using the onboard F-22 sensor suite for enhanced guidance of the AIM-120D and AIM-9X.

 

The Air Force is also eyeing use of an automatic ground collision-avoidance system on the F-22, although a contract has not yet been negotiated for that work.

 

The price of Raptor 195 is $152 million, up from roughly $300 million in then-year dollars for the first aircraft, including engines but not the amortized cost of development.

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27 décembre 2011 2 27 /12 /décembre /2011 13:35

predator drone mq9 reaper photo USAF

photo USAF

 

December 27, 2011: STRATEGY PAGE

 

Two months ago, the U.S. MQ-1 Predator UAV fleet hit a million hours in the air. Over 20 percent of those hours were flown this year. The Predator replacement, the MQ-9 reaper has flown nearly 250,000 hours so far. America's large UAVs (MQ-1, MQ-1C, MQ-9, RQ-4 and RQ-170) flew some 400,000 hours this year. That's compared to 300,000 hours last year, 185,000 hours in 2009 and 151,000 hours in 2008. It took 12 years of service (1995-2007, including development) for the MQ-1 Predator alone to reach its first 250,000 hours. It took another two years (2007-2009) to fly an additional 250,000 hours (500,000 total). It took less than a year to reach another 250,000 hour milestone (Spring 2010).

 

So far, between the air force and CIA (a major operator of UAVs over Pakistan, and other places) has 500 MQ-1 and MQ-9s built or on order. Some 20 percent of these have been lost to accidents. Fourteen were lost that way this year. But the troops can't get enough of these aircraft overhead.

 

The U.S. Air Force has ordered nearly fifty MQ-9 Reaper UAVs this year. Each of the new MQ-9s will cost about $6.2 million each. The price more than doubles as sensors, fire control and communications gear is added, and this is typical with combat aircraft, and that's what the air force considers the Reaper.

 

The air force has over 70 MQ-9s in service, and the new orders will take about a year to complete. The air force wants to buy another 200 before replacing the MQ-9 with the MQ-X. The MQ-1 Predator is being replaced by the MQ-9, and the last USAF MQ-1 was built last year. The total USAF fleet of MQ-1s and MQ-9s consists of over 250 UAVs. By the end of the decade, the army and air force will have over a thousand of these large, armed, UAVs.

 

The MQ-1 Predator UAV has evolved into a family of three aircraft. The original Predator is a one ton aircraft that is 8.7 meters (27 feet) long with a wingspan of 15.8 meters (49 feet). It has a hard point under each wing, which usually carry one (47 kg/107 pound) Hellfire each. Each hard point can also carry a Stinger air-to-air missile. Max speed of the Predator is 215 kilometers an hour, max cruising speed is 160 kilometers an hour. Max altitude is 8,000 m (25,000 feet). Typical sorties are 12-20 hours each.

 

The MQ-9 Reaper is a 4.7 ton, 11.6 meters (36 foot) long aircraft with a 21.3 meters (66 foot) wingspan that looks like the MQ-1. It has six hard points, and can carry 682 kg (1,500 pounds) of weapons. These include Hellfire missiles (up to eight), two Sidewinder or two AMRAAM air-to-air missiles, two Maverick missiles, two 227 kg (500 pound) smart bombs (laser or GPS guided.) Max speed is 400 kilometers an hour, and max endurance is 15 hours. The Reaper is considered a combat aircraft, to replace F-16s or A-10s on many missions.

 

The U.S. Army MQ-1C Gray Eagle weighs 1.5 tons, carries 136 kg (300 pounds) of sensors internally, and up to 227 kg of sensors or weapons externally. It has an endurance of up to 36 hours and a top speed of 270 kilometers an hour. Gray Eagle has a wingspan of 18 meters (56 feet) and is 9 meters (28 feet) long. The MQ-1C can land and take off automatically, and carry four Hellfire missiles (compared to two on the Predator).

 

China is trying to export UAVs nearly identical to the Predator, but about 20 percent lighter. The replacement for the MQ-9 (MQ-X) is still in the design stage, although budget cuts and improved sensors (multiple cameras on one aircraft) may force the air force to just "evolve" the MQ-9. Currently this means adding electronic warfare and missile defense equipment, to enable the aircraft to survive in areas where the enemy has better anti-aircraft weapons. There is also a need for better flight control software, and improved ability to handle cold weather operations (as in places like Afghanistan), where wing icing is a constant problem.

 

The air force also wants to improve the reliability of its UAVs, and reduce the loss rate (an accident causing destruction, or at least a million dollars of damage, per 100,000 flight hours). As of last year, the rate for its MQ-1 Predators was down to about 7. Although this is twice the rate of manned fighter aircraft (like the F-15 or F-16), and five times the rate of the old, but very reliable, B-52, it's about the same rate as single engine private aircraft (8.2).

 

Only a few years ago, the loss rate for the 1.1 ton MQ-1 was 30. The 4.7 ton larger MQ-9 Reaper had a loss rate of about 15 last year, after four years in service. It was a decade ago that the MQ-9 made its first flight. The Predator has been in action since the late 1990s. The design and operation of the MQ-9 learned much from the experience of the MQ-1.

 

Unmanned aircraft have always had a much higher loss rate, which is largely the result of not having a pilot on board, and not doing all that could be done to compensate for that. Older model UAVs had much higher rates. The 1980s era RQ-2A Pioneer had an annual rate of up to 363 per 100,000 hours. Despite that, the RQ-2 proved very useful during the 1991 Gulf war.

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27 décembre 2011 2 27 /12 /décembre /2011 13:30

http://upload.wikimedia.org/wikipedia/commons/b/b8/M16a1m16a2m4m16a45wi.jpg

photo Offspring 18 87

 

December 27, 2011: STRATEGY PAGE

 

During the last decade there have been several attempts to get the United States to replace the 5.56mm rifle round with something more powerful. A 6.8mm round was popular for a while, but never caught on. Now there's a new round, the 300BLK. This is a 7.62 bullet using a similar size (35mm long) cartridge as the 5.56mm round. Thus all you need is a new barrel for your M-4 or M-16 rifle. The larger and heavier 7.62mm round is more effective at blasting through walls and doors and many troops believe it has better stopping (of soldiers it hit) power. American troops would sometimes use captured AK-47s (and their 7.62mm ammo) to test this theory. This fed the demand for something like the 300BLK. A year ago, the 300BLK was approved for manufacture, and tests, on and off the battlefield are under way. The 300BLK can use the same magazines as the 5.56mm round.

 

But the fate of the 6.8mm round should be considered before declaring the 300BLK has a bright future. Six years ago the new 6.8mm rifle round developed for SOCOM (Special Operations Command) became available commercially as the 6.8mm Remington SPC (Special Purpose Cartridge). There were some problems in manufacturing the 6.8mm SPC. Remington began work on the new round in 2002. It used the case from the old Remington .30-.30 (which was not a true .30-.30, as it was rimless.) SOCOM began testing the 6.8mm round in M-16s and M-4s modified to accommodate it. The 6.8mm round was more accurate at longer ranges and had more hitting power than the 5.56mm round the M-16 was originally designed for. Out to about 600 meters, the 6.8mm round had about the same impact as the heavier 7.62mm round used in sniper rifles and medium machine-guns.

 

The 6.8mm, 5.56mm, 300BLK and 7.62x39 AK-47 round are all considered "assault rifle" rounds. This concept of a less powerful rifle round came out of research begun towards the end of World War I. During the 1930s, the Germans studied their World War I experience and concluded that a less powerful and lighter rifle round would be more effective. This resulted in research on a smaller 7mm round, but with World War II fast approaching, this effort eventually produced a shortened regular (7.92mm) rifle round. During that war, the Germans developed the first modern assault rifle, the SG-44. This weapon looked a lot like the AK-47, and that was no accident. The SG-44, like the AK-47, used a shortened rifle cartridge that was developed before the war (7.92mm for the Germans, 7.62mm for the Russians, which is still used in the AK-47).

 

This gave the infantryman an automatic weapon that could still fire fairly accurate shots at targets 100-200 meters away. The SG-44, and the AK-47, had about the same stopping power as the 6.8mm SPC and 300BLK at those shorter ranges. What a coincidence. The AK-47 didn't have the accuracy of higher powered bullets, but the Russians didn't see this as a problem, because most troops using it had little marksmanship training. If they had to kill someone, they could fire at full auto. The U.S. M-16, and its high speed 5.56mm round, was more accurate than the AK-47 when firing individual shots at shorter ranges. But the wounding power of the 5.56mm (.22 caliber) bullet fell off rapidly at ranges over a hundred meters. The American military, and especially SOCOM, train their troops to fire individual shots, and do it with great accuracy at any range. A number of new rifle sights have made even easier to do, and makes first round hits at longer ranges easier to make. This made the longer range shortcomings of the 5.56mm round more obvious.

 

SOCOM used the 6.8mm round in Iraq and Afghanistan, and the troops liked it, but not enough to cause widespread adoption. There was also resistance from senior (non-SOCOM) generals to any consideration for replacing the 5.56mm round with the 6.8mm. To further complicate matters, there was a new 6.5mm “Grendel” round being tested as well, and some troops preferred it to the 6.8mm SPC. This was because the 6.5mm round is more accurate than the 6.8mm one at ranges beyond 500 meters. At the moment, no decision has been made about any replacement for the 5.56mm round. The 300BLK is unlikely to change that.

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27 décembre 2011 2 27 /12 /décembre /2011 13:20

http://en.rian.ru/images/15975/03/159750370.jpg

 

WASHINGTON, December 27 (RIA Novosti)

 

The United States is preparing for talks that could lead to cuts in tactical nuclear weapons and warheads in storage in a future arms agreement with Russia, a senior arms control official said in an interview with RIA Novosti.

 

“At the moment we are engaged in what I would say is a ‘homework period,’” said Rose Gottemoeller, Assistant Secretary of State for the bureau of arms control, verification and compliance. “We are preparing a way for new negotiations but we are not yet ready to embark on new negotiations.”

 

When President Barack Obama signed the new Strategic Arms Reduction Treaty (START) with Russia on April 8, 2010 he pledged to look forward to future nuclear arms negotiations and began planning for them, Gottemoeller said.

 

Obama sought a deal on new categories of arms in future reduction negotiations, she said.

 

“The first category would be further reductions in deployed nuclear warheads. These warheads are the easiest ones to see from outer space, from either Russian satellites or U.S. satellites. Up to this point in the history of arms control efforts we've always focused on deployed weapons,” she said.

 

The U.S. also wanted a deal on other nuclear weapons.

 

“One - non-deployed nuclear weapons, weapons that are in storage facilities or reserve, and the third category is non-strategic weapons or tactical nuclear weapons. Those last two categories are brand new and for that reason we have been very interested in working with the Russian Federation on some new approaches that will be necessary for verifying such agreements,” Gottemoeller said.

 

The United States is also interested in some of the conceptual and definition questions that are involved, because “what we consider a tactical nuclear weapon may be different from what the Russian Federation considers to be a tactical nuclear weapon or non-strategic nuclear weapon,” she said.

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26 décembre 2011 1 26 /12 /décembre /2011 17:45

SM-3_launch-photo-US-Navy.jpg

photo US Navy

 

TUCSON, Ariz., Dec. 26, 2011 /PRNewswire

 

Raytheon Company (NYSE: RTN) received a $122.5 million contract from the U.S. Missile Defense Agency for continued development of Standard Missile-3 Block IA and IB programs. Under this modification, Raytheon will provide SM-3 design and engineering, in service engineering support, production engineering, surveillance and flight test support, and transition to production.

 

The contract was announced Dec. 22 by the Department of Defense.

 

About SM-3

 

    Raytheon's SM-3s are designed to defend against short- to intermediate-range ballistic missile threats in the ascent and midcourse phases of flight.

    SM-3 Block IA is Raytheon's first variant in the SM-3 family; it is deployed today in support of the first phase of the administration's Phased Adaptive Approach (PAA) for ballistic missile defense.

    Raytheon has delivered more than 130 SM-3 Block IAs ahead of schedule and under cost.

    The SM-3 Block IB is Raytheon's second variant in the SM-3 family.

    The SM-3 Block IB has an enhanced kinetic warhead seeker, throttleable divert and attitude control system, and advanced signal processing.

    Raytheon's SM-3 Block IB is the cornerstone of phase two of the administration's PAA and is on track for a 2015 deployment at sea and ashore.

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26 décembre 2011 1 26 /12 /décembre /2011 12:50

USMC_AV-8B_Harrier_II_hovering-photo-D.-Miller.jpg

photo D. Miller

 

December 26, 2011: STRATEGY PAGE

 

For the first time, U.S. Marine Corps AV-8B STOVL (vertical takeoff and landing) aircraft are being armed with long-range AMRAAM air-to-air missiles. Although the AV-8B is primarily a ground attack aircraft, it can also be quite effective in air-to-air combat. The first AMRAAM equipped AV-8Bs are aboard the amphibious ship (which looks like a small carrier) USS Makin Island.

 

The AV-8 first entered service in 1969. That early version was used mainly by the British Royal Navy and the U.S. Marine Corps. It was an 11 ton aircraft (7 tons when taking off vertically) that carried about two tons of weapons. In the 1980s, a more powerful 14 ton version (AV-8B) was developed, which could carry three tons of weapons. The U.S. is eventually replacing its AV-8s with the new F-35B.

 

The AIM-120D AMRAAM entered service in 1992, more than 30 years after the first reliable radar guided air-to-air missile (the AIM-7 Sparrow). AMRAAM was meant to succeed where the AIM-7 didn’t. Vietnam, in the 1960s, provided ample evidence that AIM-7 wasn't really ready for prime time. Too many things could go wrong. Several versions later, the AIM-7 got another combat test during the 1991 Gulf War. In combat, 88 AIM 7s were launched, with 28 percent scoring a hit. The AIM 9 Sidewinder did worse, with 97 fired and only 12.6 percent making contact. That said, most of these hits could not have been obtained with cannon, especially when the AIM 7 was used against a target that was trying to get away.

 

AMRAAM was designed to fix all the reliability and ease-of-use problems that cursed the AIM-7. But AMRAAM has only had a few opportunities to be used in combat, and over half of those launched have hit something. The 120D version entered service four years ago and has longer range and greater accuracy and resistance to countermeasures. So far, AMRAAMs have spent nearly two million hours hanging from the wings of jet fighters in flight. Some 2,400 AMRAAMs have been fired, mostly in training or testing operations. That’s about a quarter of those produced.

 

AMRAAM weighs 172 kg (335 pounds), is 3.7 meters (12 feet) long and 178mm (7 inches) in diameter. AMRAAM has a max range of 70 kilometers. These missiles cost about a million dollars each. The missiles are complex mechanical, electronic and chemical systems, and each of them, on average, suffers a component failure every 1,500 hours.

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26 décembre 2011 1 26 /12 /décembre /2011 08:20
U-2 Holds Out Against The Robots

 

 

December 24, 2011: STRATEGY PAGE

 

The U.S. Air Force has again delayed the retirement of its U-2S reconnaissance aircraft. Now the U-2 may remain in service until 2016 or later. The reason is the continued failure of the Global Hawk UAV to prove it can replace the manned U-2. Congress wants the Global Hawk to pass tests proving it can do everything the U-2 can before the U-2, which entered service 56 years ago, is retired.

 

For the last five years the U.S. Air Force has been trying to replace its manned U-2 reconnaissance aircraft with the RQ-4 Global Hawk. This has not worked out well. In addition to the problems with Global Hawks' reliability and dependability, another issue has been in the superiority of the sensors carried by the U-2. So why not just install the U-2 sensors in the Global Hawk? The problem here is weight and space. The U-2 is a larger and heavier aircraft, and even with a pilot, has more carrying capacity. Air force suppliers keep promising that they have the problem solved but after several generations of Global Hawk sensor redesigns and improvements, it will still be a few years before the Global Hawk will be competitive and the U-2 will be out of a job.

 

Then there's the UAV software, which has still not matched the capabilities of pilots. The humans still have an edge over robotic systems, especially when it comes to emergencies. But another advantage that the U-2 has is that it has been around for half a century. Its quirks and foibles are well known. The Global Hawk is not only new but is also the first of a new kind of robotic aircraft.

 

Global Hawk has crossed the Pacific, from North America to Australia, using onboard computers to run everything. While impressive, Global Hawk still has a tendency to get into trouble unexpectedly and not know how to recover. More work needs to be done on the software and, to a lesser extent, the hardware used by Global Hawk. Since no one can (or at least will) swear when Global hawk reliability will be up to acceptable standards plans are being made to keep the U-2s around for a while longer - just in case.

 

This popularity is running the U-2s ragged. Two years ago, for example, two 41 year old U-2s achieved a record 25,000 hours in the air. One of these aircraft had made three belly (landing gear up) landings, requiring extensive rebuilding after each incident.

 

With a range of over 11,000 kilometers, the 18 ton U-2s typically fly missions 12 hours long. All U-2s have been upgraded to the Block 20 standard, so they can be kept in service until the end of this decade. Or at least until the 13 ton Global Hawk is completely debugged and available in sufficient quantity to replace it. The U-2 has been in service since 1955 and only 86 were built, of which 26 remain in service. Less than 900 pilots have qualified to fly the U-2 in that time.

 

The heavy use of the U-2 has been hard on the pilots. Missions can be as long as 12 hours and pilots operate in a cockpit pressurized to conditions found at 30,000 feet. This puts more strain on the pilot's body. That, and the fact that they breathe pure oxygen while up there, means they tend to be completely exhausted after returning from a long mission. U-2s fly missions daily over the Middle East, Afghanistan, and Korea.

 

This wasn't supposed to happen. Five years ago the U.S. Air Force wanted to retire its U-2s and replace them with UAVs like Global Hawk. But Congress refused to allow it, partly for political reasons (jobs would be lost, which is always a live political issue) and because some in Congress (and the air force) did not believe that Global Hawk was ready to completely replace the U-2. This turned out to be correct. New Global Hawks continue to appear but there is so much demand for the kind of recon work the two aircraft can do that both pilots and robots will coexist for a while. But eventually the old reliable U-2 will be retired.

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25 décembre 2011 7 25 /12 /décembre /2011 21:22

http://lignesdedefense.blogs.ouest-france.fr/media/01/00/177522072.jpg

 

25.12.2011 par P. CHAPLEAU Lignes de Défense

 

La 10e édition de To Walk The Earth In Safety vient d'être diffusée. Ce rapport annuel fait le point sur le progamme américain de Conventional Weapons Destruction (CWD) auquel contribuent les ministères et agences suivantes:


- Centers for Disease Control and Prevention: International Emergency Refugee Health Branch
- Regional Approach to Stockpile Reduction
- U.S. Agency for International Development's Leahy War Victims Fund
- U.S. Defense Threat Reduction Agency
- U.S. Department of Defense's Humanitarian Demining Research & Development Program
- U.S. Department of Defense's Humanitarian Demining Training Center
- U.S. Department of State's Bureau of Political-Military Affairs, Office of Weapons Removal and Abatement
- U.S. Quick Reaction Force, financée par le DoS et confiée depuis 2008 (et jusqu'à 2013) à la société DynCorp.

 

deminage2.jpgLe rapport détaillé (par pays d'intervention) est consultable et téléchargeable sur ce lien [ 18.93 MB].

 

En dix ans, c'est près de 1,9 milliard de dollars (dont 201 millions $ pour l'année financière 2010) qui ont été investis dans 81 pays affectés par la présence de mines, munitions non explosées..., via des ONG, des structures privées et des entreprises spécialisées. Le rapport donne la liste de ces 50 structures.

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24 décembre 2011 6 24 /12 /décembre /2011 13:05

C-130-J-hercules.jpg

 

The C-130J Hercules is a tactical cargo, heavy lift and personnel transport

aircraft powered by four Allison AE2100D3 turboprop engines

 

22 December 2011 airforce-technology.com

 

The US Air Force (USAF) has awarded a new $167m block upgrade contract for C-130J Super Hercules to Lockheed Martin to help enhance the interoperability of the aircraft across the worldwide fleet.

 

The Block 8.1 enhancement programme consisting of both software and hardware capability expansion will be installed in the aircraft.

 

Currently, the C-130J fleets are installed with the Block 6.0 configuration, while the Block 7.0 configuration is undergoing flight trials.

 

The Block 8.1 configuration includes updated identification friend or foe (IFF), Tempest compliance, automatic dependent surveillance broadcast, and a communications, navigation and surveillance/air traffic management data link.

 

The company will also provide an enhanced inter-communication system, enhanced approach and landing systems, enhanced diagnostics and additional covert lighting.

 

Lockheed Martin vice-president for C-130 programmes Lorraine Martin said that the C-130 aircraft has constantly been made adaptable to ensure it meets modern operational requirements.

 

"The C-130 is the benchmark for airlift around the world and the block upgrade programme ensures interoperability across the

worldwide C-130J fleet," Martin added.

 

The C-130J Hercules is a heavy-lift tactical cargo and personnel transport aircraft powered by four Allison AE2100D3 turboprop engines and can accommodate a payload of up to 20t or more than 90 passengers.

 

The aircraft, crewed by two pilots and a load master, features a glass cockpit, digital avionics and a new propulsion system with a six-bladed propeller.

 

The aircraft are also in service in Australia, Indonesia, Canada, Denmark, India, Italy, Norway, Qatar, the UK and the US Coast Guard.

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24 décembre 2011 6 24 /12 /décembre /2011 12:45

maxxpro_crop.jpg

 

23 December 2011 - by the Shephard News Team

 

Navistar Defense has announced that it has been awarded a field service representative (FSR) delivery order to support the US Marine Corps’ International MaxxPro Mine Resistant Ambush Protected (MRAP) vehicles. According to Navistar, the contract is valued at $134 million.

 

Navistar’s fleet of vehicles is now growing beyond 32,000 trucks, and fleet support remains a key part of its business. The company currently has more than 600 FSRs in theatre and working domestically to support the MaxxPro family of vehicles.

 

Work conducted under the renewed contract will run through December 2012.

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24 décembre 2011 6 24 /12 /décembre /2011 08:15

http://www.asdnews.com/data_news/ID40192_600.jpg

 

Dec 23, 2011 ASDNews Source : TenCate

 

On March 4, 2011 TenCate issued a press release announcing its cooperation with the Danish company ABDS ApS for the development and market preparation of the TenCate ABDS(tm) active blast countermeasure system, a system for the protection of army vehicles against improvised explosive devices and roadside bombs. With reference to the above press release, TenCate herewith announces an agreement with the shareholders to acquire all the shares of ABDS ApS, which will be integrated into the TenCate company as Ten Cate Active Protection ApS. Full ownership by TenCate effectively supports a timely international market introduction through producers of army vehicles in order to substantially increase the survivability protection levels of vehicles used in crisis areas. The acquisition shall be completed once Danish authorities have approved the transaction, which approval is expected shortly.

 

Recent tests and simulations of the TenCate ABDS(tm) active blast countermeasure system have been concluded successfully. Vehicle specific tests are an essential part of the successful implementation of the system in the field. The implementation of the TenCate ABDS(tm) active blast countermeasure system is currently planned to take place in the course of 2012-2013. Based on the tests and simulations so far and their good results, it is clear that genuine interest is currently being shown by the market in several vehicle programmes.

 

Survivability protection

 

TenCate Advanced Armour (with facilities in Denmark, the Netherlands, UK, France and the US) is a specialist in vehicle armouring systems based on light weight, composite armour materials. The TenCate ABDS(tm) active blast countermeasure system offers complementary survivability protection against the effects of explosives. There is an evident need for enhanced protection, in combination with increased mobility of army vehicles. The TenCate ABDS(tm) active blast countermeasure system enables TenCate Advanced Armour to expand its capabilities in terms of advanced protection systems for vehicles to meet these market needs.

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