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The AN/SLQ-25A was introduced in 1987. [2] It is a clean-sheet design when compared to the original AN/SLQ-25 Nixie. Apart from a few minor mechanical components, they share no common parts. The AN/SLQ-25A utilises a fiber optic tow cable (FOTC) and a 10-horsepower (7.5 kW) RL-272C double drum winch.
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.
Examples of diver-detecting active sonar systems are: AN/WQX-2 – Diver detection sonar used in defense against underwater incursions; Cerberus (sonar) – Diver detection device; Underwater Port Security System – Defense against hostile swimmer incursions; Trained animals Trained dolphins and sea lions can find submerged divers.
Lowrance was founded in Tulsa, Oklahoma in 1957. In 2006, Simrad Yachting and Lowrance merged in a deal valued at $215 million, creating a new company named Navico. In 2006, Lowrance was purchased by Simrad Yachting for $215 million. [8] This merger went on to create Navico, now the largest leisure marine electronics manufacturer in the world. [9]
The vessels are fitted with a Nautel C-Tech CMAS 36/39 hull-mounted omni-directional active sonar, [1] updated to CMAS 30D configuration. In addition, the ships were originally fitted with an Atlas Fansweep-20 multibeam echo sounder and an Atlas Hydrographic Deso single-beam echo sounder, and a Klein 2000 towed sidescan sonar array. [ 1 ]
Wake homing is a torpedo guidance technique based on the wake trajectory left behind a moving target. [1] The torpedo is fired to cross behind the stern of the target ship, through the wake. As it does so, it uses sonar to look for changes in the water caused by the passage of the ship, such as small air bubbles. When these are detected, the ...
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