U.S. Navy surveillance vessel can listen Impeccable quiet submarines (Figure)
U.S. Navy surveillance vessel
3 10, for the United States proposed “international waters in the South China ships to the U.S. Navy surveillance vessel harassment,” saying, Foreign Ministry Spokesperson Jiang Yu refuted. Jiang Yu said, the U.S. Navy surveillance vessel “perfection” without China’s permission in South China’s exclusive economic zone activities, contrary to international law and relevant Chinese laws and regulations.
in fact lead to friction of the most direct reason is to monitor the vessel at sea as the representative of the U.S. “spy ship” has been illegal activity in the waters around China, waiting for an opportunity to gather intelligence. In September 2002, the U.S. Navy “Bowditch” drifted China’s Yellow Sea exclusive economic zone operations, several Chinese naval vessels and aircraft warning. 2003, 2004, 2005, in China’s Yellow Sea, East China Sea exclusive economic zone, China many times with the U.S. Navy Navy tracking ship, marine survey vessels and electronic intelligence surveillance ship “encounter.”
then ship “flawless” carries what purpose, what is so special about it?
“perfection” number “T -AGOS23 “. Which, AGOS is the “general auxiliary maritime surveillance,” the abbreviation. The “T” word is said by the candidates in the Navy’s civilian operations.
“perfection” with a double hull shape design, with strong seakeeping, can act as a stable platform that is conducive to sonar data collection.
“perfection” to monitor ship with about 20 sailors, 10 technical personnel and 20 Navy personnel. Such monitoring board generally are equipped with three types of workers, of which, sailors responsible for running, navigation, maintenance of vessels, technical staff responsible for maintenance of sonar equipment, and naval personnel are responsible for the use of sonar data collection.
America’s most quiet boat
“perfection” is monitoring the ship, “Flawless” monitor the ship’s first ship, but also the level of only one ship, delivered in 2001, about 86 meters and a width of 29 meters, a displacement of 5368 tons, about 22 km per hour. Main purpose is to use high-performance sonar to detect submarines and other undersea and tracking threats. Because of the special nature of the task, which is in addition to submarines, the U.S. government mandate to use the most quiet boat.
“perfection” on the deployment of U.S. military the most advanced sonar system “SURTASSLFA”. Sonar system to collect data, the information transmitted by satellite to shore station for analysis or to guide anti-submarine attack.
detection devices of the system is divided into two parts. Part of the “SURTASS (Towed Array Sensor System)”, composed by the passive sonar, towed by the ship level, the streamers up to 1800 meters, you can ascertain water 150-450 m deep submarine location and type. The other part is called “LFA (low frequency active)” is suspended vertically in the bottom of the ship active sonar array to deal with passive sonar can not detect the “very quiet” submarines.
although low-frequency active sonar can detect the use of battery power very quiet diesel-electric submarines, while they produce the equivalent of a Boeing 747 taking off when the engine sound, injury or even kill whales. Environmental hazards, the U.S. Navy has always denied this, claiming to spend $ 16 million for research to confirm harmless. Newspaper General (MA Yi Wu Yurong up)
related topics: United States drifted illegal activities offshore China