Kongsberg Maritime provides SS1221 sonars for Norwegian Coastguard vessels.

Kongsberg Maritime is celebrating the signing of a contract with Vard to deliver its market-leading sonars to the Norwegian Coastguard. The sonars will be used onboard three new craft planned for launch between 2022 and 2024, replacing the existing Nordkapp-class vessels.
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Artist's impression of new Coastguard vessels (Picture source: Kongsberg Maritime)

Kongsberg Maritime has signed a contract with Vard to equip the new 136-metre, ice-strengthened vessels with its SS1221 sonars, which boast acoustic properties which make them ideally suited for multiple operations safeguarding Norwegian territorial waters, especially those requiring deployment in shallow-water environments.

The sonars will be used onboard three new craft planned for launch between 2022 and 2024, replacing the existing Nordkapp-class vessels.

The SS1221 sonars will be delivered to the Coastguard complete with retractable hull units and gate valves for ice protection, ensuring safe and efficient operation.

The SS1221, principally devised for ASW operations and capable of detecting torpedoes or other small objects in the water column, is an active hull-mounted sonar which utilises sophisticated tracking algorithms. Its electronically-stabilised transmitting and receiving beams can be tilted to adjust to challenging sound speed profiles, with its integrated Sound Propagation Model determining the optimal tilt settings and enhancing the Probability of Detection (PoD) ratio.

Artist's impression of new Coastguard vessels. (Picture source: Kongsberg Maritime)