Following is the video of documentary called 猛龙冲天 歼十之路.
It is a documentary about the development of China first 4th generation military aircraft, with emphasis on key persons involved in the design, building and test flights. This aircraft was under developement for a number of years, and it was not revealed to the world until 2006. The high point must have been the first flight of the aircraft back in 1998. It was a long and arduous journey to develop the sophisticated modern fighter plane given that China lacked cutting edge technologies in those days. Those tears were real, and reflect their reliefs and happiness upon realising their dreams and aspirations.
Chief designer : Song Wencong (宋文骢 )
Chief engineer: Xue Chi Shou(薛炽寿)
Chief test pilot: Lei Qiang（雷强）
I always have an interest in military aviation, and the development of J10 provides a new milestone in the accomplishment of science and technology in fast developing China.
Reading the subtitles does help to improve my Chinese vocabulary.