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operations were broadcast live to 500,000 students in the U.S., Canada and 

 Great Britain. These assets were also used in the Challenger recovery 

 operations. 



CURRENT DUA L USE PILOT PROGRAMS 



Integrated Undersea Su rveillance System (lUSS): During the Cold War, the 

 Navy made antisubmarine warfare a mission of the highest priority to counter 

 the threat posed by the Soviet submarine fleet. As a consequence, the Navy 

 developed a variety of acoustic systems to detect and track submarines. One 

 of the most expansive of these ASW systems is the Integrated Undersea 

 Surveillance System, which is comprised of fixed and towed acoustic arrays 

 that have been used for several decades to detect and track submarines and 

 surface ships across wide expanses of ocean. 



One component of lUSS involves the use of fixed, bottom mounted 

 arrays of hydrophones cabled to shore, which are collectively known as the 

 Sound Surveillance System (SOSUS). In order to provide a flexible, forward 

 deployed surveillance capability, a mobile system called the Surveillance Towed 

 Array SONAR System (SURTASS) was developed and a number of ships 

 constructed specifically for towing the SURTASS arrays. A third component 

 which was developed to detect the increasingly quieter Soviet submarine threat 

 was a long-range, low-frequency active system capable of transmitting high 

 powered acoustic signals and detecting echoes over very long distances. 

 Communications and sophisticated signal processing tied these systems 

 together into the cohesive network known as the Integrated Undersea 

 Surveillance System (lUSS). lUSS grew to over 30,000 miles of cable, a score 



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