Re: China, Fuerza naval en crecimiento
Publicado: Jue Dic 03, 2009 8:24 pm
Es que a veces no sé en que estoy pensando..........
Por Tierra Mar y Aire
http://www.portierramaryaire.com/foro/
http://www.portierramaryaire.com/foro/viewtopic.php?f=4&t=1327
March 30, 2010: After years of rumors and speculation in the media, the U.S. Department of Defense has officially announced that it is aware of Chinese efforts to build a ballistic missile system that can hit warships, particularly carriers, at sea. The Pentagon says it is prepared for such a weapon, with anti-missile systems deployed in the Pacific (on land and at sea) to deal with such a weapon. The U.S. is apparently expecting China to test this new weapon soon, and is deploying spy ships, aircraft and satellites, to capture as much data as possible.
The general idea is that the Chinese DF-21 ballistic missile has been equipped with a high-explosive warhead and a guidance system that can find and hit a aircraft carrier at sea. The DF-21 has a range of 1,800 kilometers and normally hauls a 300 kiloton nuclear warhead. It's a two stage, 15 ton, solid fuel rocket that could instead carry a half ton penetrating, high-explosive warhead, along with the special guidance system (a radar and image recognition system).
It is believed that the Chinese have reverse engineered, reinvented or stolen the 1970s seeker technology that went into the U.S. Pershing ballistic missile. This 7.5 ton U.S. Army missile also had an 1,800 kilometer range, and could put its nuclear warhead within 30 meters of its aim point. This was possible because the guidance system had its own radar. This kind of accuracy made the Russians very uncomfortable, as it made their command bunkers vulnerable. The Russians eventually agreed to a lot of nuclear and missile disarmament deals in order to get the Pershings decommissioned in the 1980s.
The Chinese have long been rumored to have a system like this, but there have been no tests. If the Chinese do succeed in creating a "carrier killer" version of the DF-21, the U.S. Navy can modify its Aegis anti-missile system to protect carriers against such attacks. This sort of work is apparently already underway. There are also electronic warfare options, to blind the DF-21 radar. Another problem the Chinese will have is getting a general idea of where the target carrier is before they launch the DF-21. This is not impossible, but can be difficult. The Chinese have apparently been working on this as well.
For the last three years, at least, China has been developing an over-the-horizon (OTH) radar that can spot large ships (like American aircraft carriers) as far as 3,000 kilometers away, and use this information to guide ballistic missiles to the area,. Such radars have long been used to detect ballistic missile launches, and approaching heavy bombers. Some OTH radars have been modified to take advantage of the flat surface of an ocean, to pick up large objects, like ships. Cheaper and more powerful computers enable such OTH radars to more accurately identify ships thousands of kilometers away. OHT radars are large and fragile beasts, easily disabled or destroyed by missiles or smart bombs.
Varyag On The Move Again
March 30, 2010: After nearly a year in dry dock, the Chinese aircraft carrier Shi Lang latest chapter in a long, and still mysterious story. For seven years now, China has been tinkering with a half finished Russian aircraft carrier. Obviously, progress has been slow. But there has been steady progress. The latest development was the construction of a radar mast on the carrier. Officially, the Chinese say nothing. But the dockyard workers keep at it.
Earlier this year, China moved its aircraft carrier, the Shi Lang, into dry dock, apparently to install engines and other heavy equipment. It was only a year ago that this ex-Russian aircraft carrier, Varyag, was renamed the Shi Lang (after the Chinese general who took possession of Taiwan in 1681, the first time China ever paid any attention to the island) and given the pennant number 83.
Earlier this year, Google Earth revealed a Chinese air base where a mockup of the Shi Lang flight deck had been constructed. Here, Chinese carrier pilots will begin their training in the difficult task of landing on a carrier.
The Varyag is one of the Kuznetsov class carriers Russia began building in the 1980s. No one is sure exactly what plans the Chinese have for the Shi Lang/Varyag, despite the years of work. Currently, it's believed that the carrier will eventually be used to train the first generation of Chinese carrier aviators and sailors. Or maybe not. No one who really knows anything about the plans for the Shi Lang, is speaking up. All is observation (from a distance, but good pix are numerous) and speculation.
The Varyag has been in a Chinese shipyard at Dailan since 2002. While the ship is under guard, it can be seen from a nearby highway. From that vantage point, local military and naval buffs have noted the work being done on the ship. A few obvious signs of this work are visible; like a new paint job (in the gray shade used by the Chinese navy) and ongoing work on the superstructure (particularly the tall island on the flight deck.) Many workers can be seen on the ship, and material is seen going into (new stuff) and out of (old stuff) the ship. Shipyard workers report ever tighter security on the carrier, and stern instructions to workers to not report details of what is happening on the carriers.
Originally the Kuznetsovs were to be 90,000 ton, nuclear powered ships, similar to American carriers (complete with steam catapults). Instead, because of the high cost, and the complexity of modern (American style) carriers, the Russians were forced to scale back their plans, and ended up with 65,000 ton (full load ) ships that lacked steam catapults, and used a ski jump type flight deck instead. Nuclear power was dropped, but the Kuznetsov class was still a formidable design. The thousand foot long carrier normally carries a dozen navalized Su-27s (called Su-33s), 14 Ka-27PL anti-submarine helicopters, two electronic warfare helicopters and two search and rescue helicopters. But the ship can carry up to 36 Su-33s and sixteen helicopters. The ship carries 2,500 tons of aviation fuel, allowing it to generate 500-1,000 aircraft and helicopter sorties. Crew size is 2,500 (or 3,000 with a full aircraft load.) Only two ships of this class exist; the original Kuznetsov, which is in Russian service, and the Varyag.
The Chinese have been in touch with Russian naval construction firms, and may have purchased plans and technology for equipment installed in the Kuznetsov. Some Chinese leaders have quipped about having a carrier by 2010 (this would have to be a refurbished Varyag). Even that would be an ambitious schedule, and the Chinese have been burned before when they tried to build new military technology in a hurry.
About a year ago, China announced that its first class of carrier aviators had begun training at the Dalian Naval Academy. The naval officers will undergo a four year course of instruction to turn them into fighter pilots capable of operating off a carrier. The Russians warned China that it may take them a decade or more to develop the knowledge and skills needed to efficiently run an aircraft carrier. The Chinese are game, and are slogging forward.