L-3 to build submarine towed array sonar systems with enhanced capability and reliability

June 11, 2018
WASHINGTON – Submarine sonar experts at L-3 Chesapeake Sciences Corp. in Millersville, Md., will build additional TB-34X towed array sonar systems for U.S. Navy submarines under terms of a $9.8 million order announced Friday.
WASHINGTON –Submarine sonar experts at L-3 Chesapeake Sciences Corp. in Millersville, Md., will build additional TB-34X towed arraysonar systems for U.S. Navy submarines under terms of a $9.8 million order announced Friday.

Officials of the Naval Sea Systems Command in Washington are asking L-3 to provide TB-34X towed array assemblies and cable assemblies. The TB-34X is a submarine fat line towed array passive sonar receiver It is in the same form factor as the TB-34 array, yet it provides increased capability, reliability, and ability to resist the effects of obsolescence.

The Navy's TB-34 towed array is replacing the TB-16 legacy array, and provides enhancements to towing and self-noise characteristics compared to the TB-16. It provides more hydrophones than the TB-16 for future capability in passive sonar processing.

The TB-34 towed array is one of several acoustic sensors that provide data to the Acoustics-Rapid Commercial Off-the-Shelf Insertion (A-RCI) sonar system installed on U.S. fast-attack, ballistic-missile, and cruise-missile submarines.

Related: L-3 to build six more TB-29A CTA towed array sonar systems for Virginia-class submarines

The array is to provide improved capability for anti-submarine warfare (ASW), and will help submarine crews avoid threats in cluttered undersea areas near coastal waters and harbors.

The TB-34 towed array's primary function is to help search for, detect, track, and attack enemy submarines and surface vessels in coastal waters and in the open ocean.

On this order L-3 Chesapeake Sciences will do the work in Millersville, Md.; Liverpool, N.Y.; and Ashaway, R.I., and should be finished by September 2021.

For more information contact L-3 Chesapeake Sciences online at www2.l3t.com/csc, or Naval Sea Systems Command at www.navsea.navy.mil.

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John Keller | Editor

John Keller is editor-in-chief of Military & Aerospace Electronics magazine, which provides extensive coverage and analysis of enabling electronic and optoelectronic technologies in military, space, and commercial aviation applications. A member of the Military & Aerospace Electronics staff since the magazine's founding in 1989, Mr. Keller took over as chief editor in 1995.

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