WORLD DEFENCE

Chinese DF-21C Anti-ship Ballistic Missile

The R & D projects in China-made engine has some defects, the engine can not be widely used in military aircraft. As we all know, the Chinese improved strategic bombers H -6 equiped with the Russian-made D-30KP engine, JF-17 fighter with the RD-93 engine, J -10 with the AL-31FN engine, J-11 with AL -31F engines.

According to the Russian Military industry News site on December 29 News reported that China's aviation enthusiasts, the 5th generation fighter first clear picture of the most amazing Christmas gifts. J -20 J -14 or code, or J-XX aircraft was taxiing at high speed, "passers, " found that after taking to the web. Perhaps this is to demonstrate transparency, perhaps the country's military strength increasingly strong and proud of China's industrial spun leakage. In short, the new aircraft's engines roar in the Tiger, and now the remaining question is what kind of new aircraft in the end with the engine.

World experts generally believe that China-made engine R & D projects has some drawbacks, not widely used in military aircraft. As we all know, the Chinese strategic bombers H -6 improved engine assembly of the Russian-made D-30KP, JF-17 fighter using the RD-93 engines, J -10 with the AL-31FN engine, use the AL J -11 -31F engines. In short, the engine of China in Russia there is heavy reliance on imports, this trend is likely will continue. According to Russian media and the United Kingdom, "Jane's Defense Weekly " unconfirmed information, Russia has for the Chinese J–14 provides its own prototype of the 117S engine the latest (5th generation Russian fighter T-50 also uses this type of engine) But the news has been questioned. However, on the other hand, the Chinese-made WS-15 engine with the same look less credible, because this engine is not perfect, can not be used to verify the assembly of new machines. In short, China's 5th generation fighter in the end use of the type of engine, is still unknown.

The emergence of J-20 shook the media in the past ten years have no expectation on the aviation industry in China , J-20 seems to be a major step forward in the Chinese air force signals, it appears that that the PLA Air Force has grown up No longer need to rely on outdated Russian or Israeli fighter design.

U.S. Defense News article said that the United States in 1990 had a secret test flight of the F-22 and its competitive model F-23 prototype. Five air superiority fighter currently in terms of whether China has caught up with the U.S.? Recently popular Chinese Web sites everywhere in the People's Liberation Army's newest jet fighter J-20 (F 20) obscure the picture. Some people think these pictures are fake; Also some people think that picture is real, and J-20 project has been well under way. Some analysts argue that these images may be the Chinese government has launched a product of information warfare.

The article said that some of the Internet forums in China have reproduced the J-20 picture, picture show that the aircraft has many typical characteristics of the shape of the Five machines, including the distinctive outline of the front nose, irregular triangular wings and a motor upgrade of the tail. Judging from the plane shape, the Chinese J-20 looks more like the U.S. Air Force F-22 fuselage and the front of the latter part of the Russian T-50 airframe combination.

J-20 has been shaken by the emergence of China's aviation industry more than a decade did not have expectations of the media, J-20 seems to be a major step forward in the Chinese air force signals, it appears that that the PLA Air Force has grown up no longer need to rely on outdated Russian or Israeli fighter design.

Article analyzed, the question now is, J-20 is the emergence of the United States dominate the world aerospace end? Analysts are still nervous F-22 and will be F-35 as a world-class, but when Russia's newest fighter T-50 flight and the Chinese J-20 appears, analysts knock on the status of the U.S. Air Force sound the alarm.

The Pentagon delayed production of F-35, but at the same time, China has been significantly accelerated the development of national secrets Five aircraft rate of progress.

Up to now, J-20 has not yet been flight. F-22 from the first flight to enter service with the U.S. military for 15 years, taking into account the high technology of China's quality control problems, J-20 high-volume service may take years or even longer, which will be the balance of power in the Pacific have some impact. From this we can see that the Chinese Air Force, Defense Secretary Robert Gates, to judge and assess the possible bias a little, but not a lot of bias.

The J-20 #2001 prototype was photographed when it was preparing for high-speed taxi trial at the CAC airfield in late December 2010, wearing a distinctive dark green color scheme (RAM coating applied?). The prototype features a pair of all-moving tailfins and Russian 1.44 style ventral stabilizing fins, which shield the engine nozzles but might increase RCS.

It also features an F-22 style forward fuselage, including Caret intakes but with DSI bumps installed at the upper inner corners, as well as a one-piece frameless canopy. However the canards appear to extend slightly above the plane of the main wings and there are four large underwing actuator fairings which might not be stealth optimized. First disclosed by US Office of Naval Intelligence (ONI) in 1997 as XXJ, J-20 is the 4th generation multi-role fighter to enter the service between 2015 and 2018. Since 90s both CAC/611 Institute and SAC/601 Institute had been working their own designs for a twin-engine multi-role heavy fighter with stealth capability and maneuverability comparable to American F-22.

It was speculated that 601 Institute was working on a "tri-plane" design (J-18?) based on canard/conventional layout/V-shape tailfin while 611 Institute working on a design based on canard/tailless delta wing/all moving V-shape tailfin/lateral DSI/bump inlet layout. All designs were expected to feature an internal weapon bay to reduce RCS, which has been speculated to be <0.05m2 (head-on). J-20 also incorporates an advanced FBW system fully integrated with the fire-control and the engine systems. Its fire-control radar is expected to be AESA (Type 1475/KLJ5?). The aircraft may feature a "pure" glass cockpit (a single F-35 style color LCD display and a wide-angle holographic HUD).

Many of these subsystems have been tested onboard J-10B to speed up the development (see above). The exact type of engine powering J-20 prototypes is unclear, even though a Russian turbofan engine such as 117S or 99M2 (14t class) or D-30F6 (15t class) with an axisymmetric TVC nozzle has been speculated. It was reported in November 2006 that a T/W=10 17t class turbofan (WS-15/"large thrust") is being developed and will eventually power J-20. Russian assistance was also speculated in terms of software support for calculating the RCS of various designs. The overall performance of J-20 is thought to be superior to that of Russian T-50 (maneuverability & supercruise) but still inferior to that of American F-22 (electronics & supercruise). In August 2008 it was reported that 611 Institute was selected to be the main contractor for the development of J-20 and 601 Institute as the sub-contractor. Subsequently a full-scale metal mockup was built at CAC.

One rumor in May 2010 claimed that 611 Institute started to construct the first prototype, which was expected to fly by the end of 2010, even though the full configuration model won't fly until a few years later. Currently two prototypes (#2001 & 2002) have been constructed and the first high-speed taxi trial by 2001 took place on December 22, 2010.