U.S. Navy Awards L3Harris $30.9 Million for TB-29C Towed-Array Sonar for Virginia-Class Submarines
The U.S. Navy has awarded L3Harris Technologies a $30.9 million contract to develop the TB-29C towed-array sonar for Virginia-class submarines, enhancing their detection capabilities against stealthy enemy submarines. This next-generation passive sonar system features 416 channels and improved reliability while maintaining the design of its predecessor, the TB-29A. The project will be completed by September 2028 across multiple locations in the U.S.

The U.S. Navy has awarded a $30.9 million contract to L3Harris Technologies for the development of the TB-29C towed-array sonar, aimed at enhancing the detection capabilities of Virginia-class submarines against quiet enemy submarines.
The TB-29C is a next-generation passive sonar system that maintains the form factor of the TB-29A while offering improved reliability and performance. It features 416 channels and is designed to operate effectively in both open ocean and littoral environments.
Work on this project will take place in Millersville, Maryland; Liverpool, New York; and Ashaway, Rhode Island, with completion expected by September 2028. The TB-29C will enable the Navy to detect, track, and classify modern submarine threats, contributing to multi-mission operations across various submarine platforms.




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