It became known, that the Chinese Air Force fighter entered Taiwan’s air defense responsibility area. According to Taiwanese media, this is the second appearance of PLA airplanes in recent 4 day. Noteworthy is the fact, that a Chinese fighter appeared on the west coast of Taiwan at that moment, when the U.S. Navy P-8A Poseidon carried out aerial reconnaissance there.
Chinese news sources claim, that for the first time in a long time, China sent its fifth-generation fighter J-20 to Taiwan's air defense zone. In this regard, the following is emphasized.: Taiwan Air Defense Calculations Detect & Identify Chinese Air Force Fighter, despite, that in China it is defined as "stealth".
In China, information about, that sent the fifth generation fighter J-20 to the air borders of Taiwan, at the moment do not comment. At the same time, the Taiwanese media noted, that the activity of combat Chinese aviation over the Taiwan Strait with 9 June increased significantly. So, from that day to the present day, China sent various fighter jets to Taiwanese air borders, including Su-30 and J-10.
If Taiwanese information is true, it turns out, that the J-20 is not invisible for island air defense calculations.
Here it is worth recalling such a fact., as the detection of the Chinese Air Force J-20 aircraft by the Su-30MKI Indian Air Force fighters. It happened a few months ago in the Indian-Chinese border.. In fairness, it should be noted, that information about the discovery of the J-20 then appeared initially in the Indian media. After that, the same media in India repeatedly stated about the problems of the Chinese J-20 with radar stealth.
