Search results
Results From The WOW.Com Content Network
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.
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.
AN/AQS-13 dipping sonar deployed from an H-3 Sea King. Helicopters can be used for antisubmarine warfare by deploying fields of active-passive sonobuoys or can operate dipping sonar, such as the AQS-13. Fixed wing aircraft can also deploy sonobuoys and have greater endurance and capacity to deploy them.
Early trials were conducted using an experimental dipping sonar called "Hot Dog", a harbour defence sonar capsule lowered over the side or rear of a stationary ship by electrical cable. The trials confirmed the possibility of achieving long detection ranges and the reduced efficacy of hull-mounted sonar against targets in the middle layer.
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]
The AN/UQQ-2 Surveillance Towed Array Sensor System (SURTASS), colloquially referred to as the ship's "Tail", is a towed array sonar system of the United States Navy. SURTASS Twin-Line consists of either the long passive SURTASS array or the Twin-line array, consisting of two shorter passive arrays towed side by side.
The Ka-27PL anti-submarine version is equipped with a radar, and either a dipping sonar or a magnetic anomaly detector. It can also carry either up to 36 sonobuoys, or a torpedo, or between six and eight conventional depth charges, or a single nuclear one. Ka-27PLs generally operate in pairs as hunter-killer teams. [1]