速度与激情7的片尾曲:Chinese navy submarine: Running silent to bre...

来源：百度文库 编辑：九乡新闻网 时间：2024/04/30 08:15:01

Chinese navy submarine: Running silent to break through the first islands chain?





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China Yuan class submarine


With Chinese naval nuclear-powered submarines beginning to slip unchallenged through American and Japanese surveillance cordons, China appears well on its way to gaining absolute control over everything that lies within a 500 nautical miles radius of its coasts, military analysts say.


That means US Navy carrier battle groups have a hard time getting anywhere near China unless China allows it.

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The term “First Island Chain” describes a maritime line which runs roughly between Korea and Japan's western coasts, through the Taiwan Strait along the northern half of the Philippines, and ending at the Indonesian island of Sumatra. To the US and its allies, any action by the Chinese navy beyond the First Island Chain symbolizes that Beijing is expanding its geographic limits or boundaries in terms of its military's operations.


The Yuan class submarine is the newest class of diesel-electric submarine in the People's Liberation Army Navy. This class was first launched at Wuhan Shipyard.

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The Yuan class submarine inherits the tail design of the Song class submarine with four diving planes and a single large shaft. The teardrop shaped hull and large sail suggest heavy Kilo influence. The teardrop shape also suggests a pressurized double hull design inherited from the Kilo. A pair of foreplanes are positioned in the middle of the sail. The submarine is equipped with indigenously developed cabin-raft (shock absorbers) system that helped to reduce noise level by over 35dB. Additionally, the submarine is covered with rubber anti-sonar protection tiles to reduce the risk of detection.

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The Yuan class submarine has six 533 mm torpedo tubes. These can be used to launch indigenous as well as Russian-made torpedoes. It is also believed to be capable of launching YJ-8X (C-80X) series anti-ship missiles. The missile uses inertial + terminal active radar guidance. It carries a 165 kg time-delayed semi-armour-piercing high-explosive warhead, with a maximum range of 80~120 km and speed of Mach 0.9.


Although the US has responded to the rapid development of the Chinese submarine fleet by deploying the ocean surveillance ships USNS Victorious and USNS Impeccable, which monitor the seas with low-frequency sonar arrays and The Japanese self-defense forces have also strengthened surveillance with their 100 P-3Cs, both the 2004 and 2009 incidents make it obvious that US and Japan have been gradually losing the ability to fully monitor Chinese subs' movements.
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