SS 12

The SS 12 is a medium-frequency, active and passive, panoramic sonar for small- and medium-size surface ships. The sonar is effective on small, noisy ships operating in shallow (i.e., high reverberation) waters.

The sonar can be fitted as a hull-mounted system in a fixed or retractable dome or as a variable-depth sonar (VDS). It also comes in a helicopter dipping configuration known as the HS 12 (see "Variants"). The SS 12 uses preformed beams and can process both...