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The AN/SQS-53 is a large active/passive submarine detection sonar for surface warships. It is an improved version of the AN/SQS-26CX sonar, and is housed in a bow dome and reportedly the most advanced surface ship anti-submarine warfare (ASW) sonar system currently in use by the U.S. Navy.

The principal difference between the SQS-26CX and SQS-53 is the digital computer interface with the Mk 116 ASW weapon control system in the latter sonar. Both sonars perform a 360-degree,...

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