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Country of Origin: Netherlands


The interim removable low-frequency active sonar (IRLFAS) system is the result of a development project to provide the Dutch navy with a low-frequency active sonar (LFAS) system for its KAREL DOORMAN-class (M-class) frigates.

The IRLFAS is designed as a dual-tow system. It tows both an active LFAS transducer source and a passive towed receiver array deployed behind the ship.

The active source is the sound calibration and testing 2 (SOCRATES 2) acoustic source. It consists of...

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