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  2. HELRAS - Wikipedia

    en.wikipedia.org/wiki/HELRAS

    HELRAS or the Helicopter Long Range Active Sonar is a naval helicopter undersea sensor, a dipping sonar (a form of towed array sonar), deployed by helicopters of many naval air forces around the world to detect submarines; it is a form of geophysical MASINT.

  3. AN/AQS-13 - Wikipedia

    en.wikipedia.org/wiki/AN/AQS-13

    AN/AQS-13 dipping sonar deployed from an SH-3 Sea King. The AN/AQS-13 series was a helicopter dipping sonar system for the United States Navy.These systems were deployed as the primary inner zone anti-submarine warfare (ASW) sensor on aircraft carrier based helicopters for over five decades. [1]

  4. Geophysical MASINT - Wikipedia

    en.wikipedia.org/wiki/Geophysical_MASINT

    AN/AQS-13 Dipping sonar deployed from an H-3 Sea King, an aircraft used by numerous countries and produced in Italy, Japan, and the United Kingdom. Antisubmarine helicopters can carry a "dipping" sonar head at the end of a cable, which the helicopter can raise from or lower into the water.

  5. List of military electronics of the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_military...

    Airborne dipping sonar: SH-3A Sea King: AN/AQS-13: Airborne anti-submarine warfare (ASW) dipping sonar, improved AN/AQS-10: SH-3D Sea King, SH-60F Seahawk: L3Harris Technologies: AN/AQS-20: Sonar mine countermeasure: Raytheon: AN/AQS-22: Advanced Airborne Low-Frequency Sonar (ALFS) MH-60R Seahawk: Telephonics Corporation

  6. Thomson Marconi Sonar - Wikipedia

    en.wikipedia.org/wiki/Thomson_Marconi_Sonar

    Thomson Marconi Sonar or TMS was formed in 1996 by the merger of the sonar systems businesses of French defence electronics specialist Thomson-CSF and British company GEC-Marconi after the payment of a balance by the latter. [1] The new company was 50.1% owned by Thomson-CSF and 49.9% by GEC-Marconi. [2] Denis Ranque was appointed as its CEO ...

  7. Mirka-class frigate - Wikipedia

    en.wikipedia.org/wiki/Mirka-class_frigate

    processing systems: Radar Don-2; Slim Net ; Hawk Screech; Sonar - Herkules hull mounted & dipping sonar; Armament: 4 76 mm (3 in) guns (2x2) 4 RBU-6000 anti-submarine rocket launchers (2 in some ships) 5 406 mm (16 in) anti-submarine torpedo tubes