US Navy to terminate DART sonar development with Raytheon
By Megan Eckstein
Mar 31, 08:48 PM
WASHINGTON — The U.S. Navy will end its work with Raytheon Technologies developing a sonar for littoral combat ships and frigates and will instead buy a sonar already in use by several navies around the globe.
Raytheon’s AN/SQS-62 Variable Depth Sonar, also called the Dual-mode Array Transmitter, was a key component of the LCS anti-submarine warfare mission package and was going to be carried into the Constellation-class frigate program to create commonality within the surface force.
But the sonar, though it had succeeded in tracking a submarine in test events, still had two remaining technical challenges: the hydrodynamic stability of the system that trails behind the ship, and the performance and reliability of the transducers.
https://www.defensenews.com/naval/2022/03/31/us-navy-to-terminate-dart-sonar-development-with-raytheon/