China's military has built a strong military machine during the last 30 years and still continue to struggle to develop advanced machines that will allow the fighter to rival the West in a dogfight, industry sources said foreign and Chinese.
Engine technology Country United Technologies Pratt & Whitney, General Electric and Rolls-Royce, said Douglas Barrie, senior fellow for military aerospace at the International Institute for Strategic Studies in London.
China's Ministry of Defense, said in a brief statement to Reuters, said there must be kesenjanganantara military technology China and some developed countries, however, the Beijing Military will continue to strengthen its armed forces.
Southwestern restrictions on arms exports to China has banned the sale of the Western military machine for military use, forcing China to rely on domestically-made design or engine Russia has agreed to sell to China.
"Machine made in China is facing many problems," said Michael Raska, assistant professor in the program of military transformation at the S Rajaratnam School of International Studies in Singapore.
Among the issues, stealth aircraft J-20 and J-31, China can not be super-cruise, or fly at supersonic speeds as their nearest rivals, the Lockheed Martin F-22 stealth aircraft F-35, without the use of after-burners, such as which dikatan by two industry sources to follow Beijing's military program.
After-burner remove stealthiness a war plane, a capability that allows them to avoid radar detection. Even fighter aircraft engines become crucial biggest problem faced by the Chinese military, said the source, who declined to be identified because of the sensitivity of the issue.
South China Sea ::
A Chinese military expert, who has knowledge of the government's defense policy but declined to be identified, said the Chinese fighter aircraft can not be compared with American fighter planes because of low engine technology.
That puts China at a disadvantage if the Chinese stealth fighter jet fighter to be pitted against the US or its allies Japan in the disputed waters in Asia, industry sources and security experts said.
Warplanes China are likely to face contact with US fighter over the South China Sea in the next few years after Beijing conduct test flights the first of this month to one of the three runways of the island, was built in the Spratly archipelago contested, says expert security.
In any conflict, China is likely to rely on sheer numbers of combat aircraft as well as sophisticated missile arsenal that can be launched from warships or land, they added.
To be sure, China has made a priority the development of fighter aircraft engines in recent years, the sources said.
Galleon Group based in Shanghai, which provides consulting services for the aerospace industry, estimated that Beijing will spend $ 300 billion over the next 20 years on a program of civilian and military aircraft engines.
Some sources say, China has hired several foreign engineers and former air force personnel to work on the development of the engine, although this could not be confirmed independently. China's Defense Ministry declined to comment.
"In 20 to 30 years time, given the amount of work they do and the effort they put into it, they have to have a viable military machine," said Greg Waldron, Asia managing editor at flightglobal, industry publications.
Combined engine maker ::
China fighter aircraft engines were first produced under license from the Russian fighter in the 1950s. it is a program of local fighters who entered full lanyanan in the 1980s.
Engine fighter aircraft is the best state of the WS-10A Taihang, made by Shenyang Aeroengine Research Institute,
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