Recent reports show photos of several prototypes of Chinese stealth fighter planes on Wednesday after Japan televised a footage of its own stealth jet fighter.

Chinese media have reported on Wednesday that their government has been reportedly manufacturing several prototypes of the Chengdu J-20 stealth fighter with a 2012 serial number. Photos show that the recent prototypes have an almost exact similar exterior to the previous prototype with serial number 2011.

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According to China's Global Times, this suggests that the aircraft's design is continuously being developed by producing a batch of prototypes.

A few days ago, Japan has introduced in national television an advanced stealth fighter jet prototype of its own-the Mitsubishi ATD-X Shinshin, which was purportedly used to test the latest stealth technology.

According to Japan's TBS television network, the Mitsubishi ATD-X Shinshin was not part of the country's advancement in the stealth technology and has presented the US Lockheed Martin F-35 Lightning II instead.

However, Japanese officials have clarified that it has not discarded its plan to develop a fifth-generation stealth aircraft. The prototype was built for test purposes only for the country to be prepared for mass production of fourth- and fifth-generation fighter with the stealth technology in case of impending conflict.

Meanwhile, the US Air Force has 11 prototypes of its J-22 Raptor stealth tactical fighter and has carried out over 4,500 hours of test flights during its production. Reports indicate that China is likely to do the same with its J-20 and would finish productions by 2015.

Tagsstealth fighter, US Air Force