Page 58: of Marine Technology Magazine (May 2020)

Tech Files

Innovative products, technologies and concepts

Kongsberg to Supply ASW Sonars for Finish Navy Corvettes

Kongsberg Maritime AS, Sensor &

Robotics signed a contract with Saab that will see Kongserg delivering its

Anti-Submarine Warfare (ASW) and diver detection sonars for the Pohjan- maa-class corvettes currently being developed by the Finnish Navy under its Squadron 2020 project. Under the terms of the contract, which equates to approximately $9.8m, Kongsberg will equip the vessels with its SS2030 and SD9500 sonars, both of which boast acoustic properties which make them ideally suited for deployment in shallow-water environments.

The SS2030, principally devised for

ASW operations and capable of detect- ing torpedoes or other small objects in the water column, is an active hull- mounted sonar which uses sophisticated tracking algorithms. Its electronically- stabilized transmitting and receiving beams can be tilted to adjust to chal- lenging sound speed profles, with its integrated Sound Propagation Model determining the optimal tilt settings and enhancing the Probability of Detection (PoD) ratio. The SS2030 sonars will be tion in the often harsh conditions of the positioning capabilities for diver detec- delivered to the Finnish Navy complete Baltic Sea. The SD9500, meanwhile, is tion, ASW duties and volumetric survey with hoistable hull units and ice protec- a light and compact over-the-side dip- assignments in shallow, reverberation- tion to ensure safe and effcient opera- ping sonar with horizontal and vertical limited waters.

Elbit Integrated TRAPS on USV

Elbit Systems announced the integration of the Towed

Reelable Active Passive Sonar (TRAPS) for Unmanned

Surface Vessels (TRAPS-USV) onboard the company’s

Seagull USV. The sea trials included multiple deployment and recovery cycles, towing at different speeds and transmis- sion at various power levels. Integration of the TRAPS-USV enables the Seagull USV to perform Anti-Submarine Warfare operations on-the-move, substantially extending its operative range and further enhancing its fexibility. The integration of the TRAPS-USV follows the recent conversion for opera- tion, by the Israeli Navy, of Helicopter Long-Range Active

Sonar (HELRAS) dipping sonar onboard the Seagull USV.

TRAPS-USV is the compact and powerful low frequency towed sonar that was recently introduced by Geospectrum, the company’s Canadian wholly owned subsidiary.

Image: Elbit Systems Image: Kongsberg May 2020 58

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