Il équipera l’avion de patrouille maritime français Atlantique 2 dans le cadre de sa rénovation, tout en étant proposé à l’export. Thales a dévoilé son nouveau radar aéroporté multirôle, le Searchmaster. Prévu pour équiper des avions de surveillance du sol et de patrouille maritime, des hélicoptères mais aussi des drones de type MALE, puisque son poids est inférieur à 80 kg, ce radar s’appuie sur la technologie des antennes actives. Thales a, bien entendu, profité des récents développements réalisés en la matière pour le radar RBE2 AESA, qui équipe le Rafale depuis 2012. Par rapport à un radar classique, l’antenne active apporte des avantages significatifs. En plus de sa portée, de l’ordre de 200 nautiques, le radar présente un temps de rafraîchissement très bref et réalise des fauchées, offrant une vue complète depuis l’aplomb de l’aéronef jusqu’à la limite de la portée du radar. A l’instar de ce qui se pratique avec les sonars à ouverture synthétique, comme le DUBM-44 (T-SAS) de Thales, le Searchmaster, également à ouverture synthétique (SAR), pourra produire une véritable imagerie radar, avec un niveau de résolution extrêmement élevé. Un atout considérable, notamment pour la détection à grande distance (plusieurs dizaines de kilomètres) de mouvements au sol, provenant par exemple de véhicules ou d’individus. Une fonction GMTI (Ground Moving Target Indicator) qui permet de facto de réaliser aussi une désignation d’objectifs au sol. C’est d’ailleurs l’un des grands besoins exprimés par l’Etat-major des armées françaises, l’Atlantique 2 jouant désormais un rôle important dans ce domaine. En plus de leur emploi maritime, les appareils de la marine sont de plus en plus sollicités sur les théâtres d’opérations terrestres afin d’effectuer des missions de renseignement, de reconnaissance et de repérage de cibles, au profit notamment des avions de combat. On a ainsi vu les ATL 2 intervenir en Libye (2011), au Mali (2012) ou encore en Irak cette année.
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DCNS is a world leader in naval defence and an innovator in energy. As a naval prime contractor, shipbuilder and systems integrator, DCNS combines resources and expertise spanning the naval defence value chain and entire system lifecycles. DCNS delivers innovative solutions from integrated warships to strategic systems, equipment, services and new energy solutions. DCNS participates to NAVDEX and IDEX.
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Merci à Xavier Vavasseur de Navy Recognition de me permettre de diffuser cet excellent reportage 
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At NAVDEX 2015 naval defense exhibition currently held in Abu Dhabi, Thales is showcasing its latest sonar solutions:
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Thales has revealed details of a new anti-submarine warfare (ASW) sonar pairing specifically designed for small ship applications. Engineered to allow installation on offshore patrol vessels (OPVs) down to about 800 tonnes, the new CAPTAS-1 low-frequency variable-depth sonar and BlueWatcher hull-mounted sonar are intended to provide littoral navies with a credible ASW deterrent capability. The CAPTAS family of low-frequency active/passive sonars was originally brought to market in the mid-1990s to meet growing demand for an improved surface ship ASW capability against quiet submarine threats. CAPTAS-1 builds on this pedigree, but shrinks the size to allow installation on small ships. CAPTAS-1 uses a single - dependent tow for the active sonar source (a single free-flooded ring transducer operating at a centre frequency of about 1.5kHz) and a triplet receive array. Thales has also developed a compact and lightweight towed array handling system that uses a single automatic winch. In July 2013, Thales (Stand B-030) conducted at-sea trials of a CAPTAS-1 engineering development model. According to figures released by the company, CAPTAS-1 will be able to operate at speeds of up to 12kts, and at depths down to 100m. Typical detection range is claimed to be in the region of 20-30km, depending on the target type and environmental conditions. To enable installation on smaller OPVs, Thales has reduced deck footprint to 15m2 and weight to about 8 tonnes. One option is to install CAPTAS-1 in containerised form, with the sonar body/receive array and electrically powered towed array handling system housed in a standard 20ft shipping container; the winch control and electronic cabinets are installed in a 10ft container mounted adjacent. Alongside CAPTAS-1, Thales is also introducing the BlueWatcher hull-mounted sonar, which repackages the transmitter and receive arrays from the FLASH airborne active dipping sonar to provide small ships with a compact, 360° multi-purpose sonar. Thales has engineered the BlueWatcher ‘wet end’ to fit in a cylindrical volume just 700mm in diameter and 600mm in height, limiting dome/draft requirements to 0.85m. Inboard components are limited to a single cabinet and the operator console. Only a single hull penetration is required out to the array. In active mode, used for ASW or collision/obstacle avoidance, BlueWatcher transmits on any one of three frequencies between 3-5kHz in FM (frequency modulation), CW (continuous wave) and combination pulse modes. In passive mode, the system can be used to detect small, fast surface craft. According to Thales, the implementation of adaptive beam-forming has delivered performance that is equivalent to an array twice the size. It also allows for installation on ‘noisy’ ships where there is no quietening or noise hygiene.
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En savoir plus sur le SEARCHMASTER :
http://www.meretmarine.com/fr/content/searchmaster-le-nouveau-radar-de-surveillance-aeroporte-de-thales