www.thalesgroup.com/uk

EXCELLENCE IN EQUIPMENT DESIGN Sonar 2087 is user friendly: it has a robust design with automated deployment and recovery to maximise crew and equipment safety – it can be operated safely operated in high sea state conditions and its modular design will ensure that it can be installed on most modern frigates.

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• UHF spherical hydrophone module • Shape correction and twist telemetry

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280

and

FREQUENCY OF OPERATION • Active frequency <2kHz • Passive frequency <0.1 to 100kHz TRANSMISSION CHARACTERISTICS • Transmission modes – Omnidirectional • Pulse types - CW, LPFM (HFM), COMBO MULTIFUNCTION RECEIVE ARRAY CHARACTERISTICS • Directional MF array for unambiguous active reception and passive detection • Modular VLF line array

OPERATIONAL USE • Automatic launch and recovery • Array monitoring at Sonar Director’s console • Four multifunction operator consoles • Simplified system set up tools • Continuous environmental and noise monitoring TOWING • Deployment to full scope or recovery in < 30 mins • Optimum operational speed up to 15kts • Survival speed 28kts

THE SYSTEM/OPERATOR INTERFACE The Human Computer Interface (HCI) shields the operators from false data overload but clearly displays real contacts for quick analysis and rapid tactical decision making.

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SIGNAL AND DATA PROCESSING • Adaptive beamforming • Robust false alarm reduction process • Active and Passive classification • Colour-coded Doppler opening/closing indication

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LEADING THE WAY IN SONAR230INNOVATION 220

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For over 25represents years Thales Underwater change Systems from Limited submarine andvariable surface depth ship Sonar 2087 a generational thehas firstsupplied low frequency active 210 150 antenna products and systems to theleveraging Royal Navy and many international navies. sonars (also developed by Thales), technology from a wide range ofSpecialised sources. Thenaval result 200 160 190 170a diverse range of naval RF antenna distribution systems and communication buoys developed to suit 180 is a robust and operationally effective Sonar 2087 design, supported by a common manufacturing mission requirements. infrastructure and with sufficient design margin to remain relevant against the evolving submarine threat. The Sonar 2087 design has also been further developed and installed on the Franco-Italian FREMM frigates.

SONAR 2087: THE HEART OF THE UK RN’s SURFACE SHIP ASW CAPABILITY At the heart of the Royal Navy’s escort fleet, the Type 23 frigate equipped with Sonar 2087 and a Merlin helicopter, is the most versatile and potent Anti Submarine Warfare combination in service with any navy. Wide area, Underwater Battlespace surveillance, using the active and passive functions of Sonar 2087 is complemented by the Merlin’s airborne acoustics suite recently upgraded under the Merlin Capability Sustainment Programme (M-CSP). The Merlin acoustic suite includes the Sonar 2189 low frequency dipping sonar (based on FLASH) and a sonobuoy detection system. For closer range surveillance and self-protection the Type 23 also operates the hull mounted Sonar 2050. All of this sonar equipment has been supplied by Thales Underwater Systems. OPERATIONAL FEATURES Sonar 2087 is designed to provide a manageable source of high quality sonar data. From wet end launch and recovery through to contact analysis and fusion, the optimisation of operator effectiveness has been the principal objective. Key features include: • A high source level, low complexity, omnidirectional acoustic projector deployed in a hydrodynamic towed

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body. • Single ping contact bearing ambiguity resolution; single receive towed array. • High performance, Very Low Frequency passive detection and tracking. • Safe, remote control launch and recovery drills for active and passive sensors. • Accessibility for limited ship’s staff inspection, maintenance and preservation as part of a comprehensive through life support regime. • Designed for low through life costs based on lean maintenance routines and a continuous obsolescence containment programme. CONTINUED SPIRAL DEVELOPMENT The UK MoD has continued to fund the evolution of Sonar 2087 through a series of interventions designed to maintain high levels of effectiveness. This has included the transition to a full open architecture/COTS inboard processing suite facilitating rapid algorithm insertion and supporting pullthrough of MoD-funded R&D. This will ensure that the military balance in favour of the surface ship in ASW operations into the foreseeable future.

©Thales UK 2013_06/13/_MP 3206_R•06_Photographs ©Thales_ Contains Crown copyright imagery licensed under the Open Government Licence v1.0

FUNCTIONS • Low Frequency Active detection • Very Low Frequency passive detection • Bearing ambiguity resolved • Medium Frequency passive detection • Ultra High Frequency passive detection environmental monitoring

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This document is for information only and does not form part of any contractual specification. Thales is continually developing and improving its products which may therefore vary from the description given here. No endorsement of the featured products is to be implied from the content of this document

Specifications of Sonar 2087

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32Kyds

World Leading Low Frequency Active & Passive Sonar For The Royal Navy

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310

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290 16Kyds

280

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270 S5

090

S4

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260

080

100 FF

250

110

S7

MH 120

240 230

130 220

THALES UK – Ocean House, Templecombe, Somerset, BA8 0DH – Tel: + 44 (0)1963 370551 - Fax: + 44 (0)1963 372200 – E-mail: [email protected] Thales UK Limited

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LOW FREQUENCY ACTIVE AND PASSIVE SONAR.....

..... FOR LONG RANGE ASW SURVEILLANCE TRANSMITTERS TOWED BODY & HANDLING SYSTEM

High power density Compact design No mechanical energy storage

MULTIFUNCTION CONSOLES Full active & passive control Advanced HCI Several configurations

Robust hydrodynamic design Wideband transmissions No entrained water rapid recovery Heave compensation Automatic deployment and recovery

RECEIVER Fully COTS server based Open architecture Single air-cooled cabinet

SATISFYING THE ROYAL NAVY’S REQUIREMENTS The introduction of the low frequency active variable depth sonar (LFA-VDS) has changed the ASW balance between surface ship and submarine in favour of the surface ship. Sonar 2087, in service with the UK Royal Navy (RN) and combining both LF active and LF passive in a single sonar, is the best exemplar of the tactical LFA-VDS at sea today. Thales’ Sonar 2087 is a world leader in providing the RN with unprecedented levels of ASW capability against modern, very quiet submarines operating in both deep ocean and, the more challenging, littoral waters. Variable depth to counter or exploit a variable water column High performance, tactical low frequency, active search Long range, very low frequency passive surveillance

Multistatic transmission/reception capability Sea mammal monitoring in sensitive sea areas Thales Underwater Systems supplied a total of eight systems for installation in Type 23 Frigates during their normal refit cycle. The first Sonar 2087 fitted ship reentered service at the end of 2004 and Operating Capability was achieved during 2005. Subsequently, these sonars have provided the RN with exceptional ASW capability around the world.

TOWED ARRAY & HANDLING SYSTEM Directional wideband active receive array LF passive array Three configurations available Automatic deployment & recovery operation