The disclosure on J-10D was from Pupu, a highly respected senior poster in Chinese internet, and his information is said from another reliable source as in the attached picture. Words in the picture includes.....
J-10D is
1) not stealth shape
2) application of new technology and advance avionics to compensate for lack of stealth (shape form)
3) avoided problems faced by F-35 (actual word is 35, I could be wrong if it was referring to Su-35, but I am more inclined he meant F-35 which is problem prompt)
4) can share production lines of J-10B/C.
5) has longer range than current J-10 series.
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