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The Surveillance Towed Array Sensor System program provides sustainment and logistics management for all installed antisubmarine warfare mission systems, including passive and active surveillance equipment and computer network systems.
In 1985, the Navy established the Surveillance Towed Array Sensor System (SURTASS) Low Frequency Active (LFA) sonar program to develop a long-range capability for detecting a new generation of quieter Soviet nuclear and diesel submarines operating principally in the open ocean.
The full name of this submarine detection system is the Surveillance Towed Array Sensor System Low Frequency Active Sonar (SURTASS LFAS), often referred to simply as LFA.