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Navy/USMC

Navy Cites Reasons For Ditching DART Sonar For LCS, Frigate

Thursday, September 1st, 2022

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Navy Cites Reasons For Ditching DART Sonar For LCS, Frigate

The future USS Sioux City (LCS-11) finishing acceptance trials in Lake Michigan in May 2018. (Photo: Lockheed Martin)

A Navy official this week cited technical challenges as the reason behind the Navy's decision to cancel development work on Raytheon Technologies’ [RTX] AN/SQS-62 Variable Depth Sonar for use on the Freedom-variant Littoral Combat Ships and Constellation-class (FFG-62) frigates. The sonar system, also called the Dual-mode Array Transmitter (DART), was previously chosen for the LCS with plans to also be used on the frigate to help perform the anti-submarine warfare (ASW) mission. “So the plan for frigate had been to…

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