China’s next-generation J-20 stealth fighter jet fourth prototype of made its first flight on 26 July. Also, earlier this month photos of the said prototype was released by China-owned media.
The said prototype has a tail number 2012. According to report “once again proven that China’s development of stealth fighter jets has left Japan far behind.” China invested much resources and efforts to develop the J-20.
It was reported earlier that photos of Japan’s ATD-X, Japan’s fifth generation jet fighter using advanced stealth technology, emerged in the internet.
There are speculations that the Lockheed Martin F-35 program have helped in the development of the J-20. In 2009, US government officials said information from F-35 was attacked by unknown hackers that originated from China.