Lockheed Martin Wins Contracts for Thin Line Towed Arrays

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Towed arrays create a longer baseline than other types of underwater sensors, which enhances detection capabilities. According to the 2002 edition of the US Navy’s Vision…Presence…Power: A Guide to U.S. Navy Programs, the TB-29A is a commercial-off-the-shelf (COTS) version of the legacy TB-29 towed array: “[The TB-29A] arrays will be used for back-fit on Los Angeles (SSN-688 and SSN-688I) and Seawolf (SSN-21) submarines and forward-fit on the Virginia (SSN-774) class. TB-29A will also be used for the SURTASS [Surveillance Towed Array Sensor System] Twin-line towed array system. It will provide greater capability than the current TB-23 Thin Line towed arrays and achieve enhanced supportability through commonality. TB-29A uses COTS telemetry to significantly reduce unit cost while maintaining superior array performance. These arrays were recently tested with SURTASS ships and will support the IUSS [Integrated Undersea Surveillance System] community…Coupled with the submarine A-RCI system, TB-29A arrays are expected to provide the same 400-500 percent increase in detection capability against quiet submerged platforms in blue-water and shallow-water areas, as the current TB-29 has demonstrated recently.” Note that A-RCI referenced above is a sonar system upgrade installed on the US Navy’s entire submarine fleet, including SSN-688 Los Angeles & SSN-688I Improved Los Angeles […]

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