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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]
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.
The helicopters are consisted of two type, capable of either anti-submarine (ASW) or anti-surface (ASuW) warfare. The ASW helicopters are fitted with Compact FLASH dipping sonar and carried MU90 torpedoes, while the ASuW helicopters could carry a loadout of Mokopa air-to-surface missiles and a FN M3M 12.7 mm heavy machine gun.
The helicopters are consisted of two type, capable of either anti-submarine (ASW) or anti-surface (ASuW) warfare. The ASW helicopters are fitted with Compact FLASH dipping sonar and carried MU90 torpedoes, while the ASuW helicopters could carry a loadout of Mokopa air-to-surface missiles and a FN M3M 12.7 mm heavy machine gun.
Powered by RTM322 engines and fitted with Blue Kestrel radar, Thomson Marconi FLASH dipping sonar and Orange Reaper ESM. 44 built. [167] Model 112 Italian Navy early warning variant with same airframe as Model 110 but with Eliradar HEW-784 radar in large underfuselage radome. Four built. [168] Series 200
For anti-submarine duties, the helicopter can operate for over three hours when equipped with the Thales FLASH dipping sonar, two hours with the sonar and one Blue Shark torpedo, and an hour or more with the sonar and two torpedoes; it can also drop sonobuoys. [54]
Safran Euroflir 410NG Electro-Optical System; Improved Electronic Support Measures (ESM) Thales FLASH active dipping sonar; Thales BlueTracker sonobuoy; The armament will be: MBDA MARTE MK2/S; MU90 Impact anti-submarine torpedoes; On option, NSM (Naval Standard Missile) from Kongsberg; Boeing P-8A Poseidon United States: Fixed wing aircraft ...
It is expected to have a active dipping sonar and a minimum endurance of at least 96 hours. [42] The vessel will be carried in the mission bay of the ASWF and be launched and recovered via a cradle-type system.