The closest thing I’ve heard to a radar problem on the J-20 from a semi-reputable Chinese source was a leak by Kongjunchang on CJDBY. According to him the Russian engines currently can’t supply enough power for the J-20’s radar to work at peak capacity. They are working around the problem by putting the radar in a low power sleep mode until it is ready for use.
I would take some of the stuff from the DoD report with a grain of salt. Up until a few years ago it claimed that the J-20 was optimized for attacking aircraft carriers and other surface vessels.
I would take some of the stuff from the DoD report with a grain of salt. Up until a few years ago it claimed that the J-20 was optimized for attacking aircraft carriers and other surface vessels.