Currently there are, confirmed by serial numbers, at least 18 aircraft with Russian engines distributed among Dingxin, Cangzhou, and Wuhu (relocated temporarily to Quzhou). However, we know for a fact that there are a lot more than this since they mustered 18 aircraft for the July 1st parade (15 formation flyers with three backups).Man can we gag this Surya? He is derailing every thread with his nonsense.
On Topic: Can any Chinese member tell me how many J20s are planned to be inducted in PLAAF?
It is highly unlikely that China sent all of its J-20s away for the parade. My guess is that half of each division was picked for the parade.
As for WS-10 equipped J-20s, we've seen one in Cangzhou earlier this year. There are most likely more aircraft stationed as well.
There are two WS-10 J-20s spotted doing a flyover in North Eastern China (subject of the news report) this week. They are confirmed to be from the 1st Air Brigade in Anshan. Considering that the Wanghai Brigade in Wuhu has at least 10 aircraft as confirmed by satellite image. It is safe to assume that there are 10 in Anshan as well.
No one knows for sure exactly how many PLAAF plans on inducting but based on estimates from the CAC facility, at least 24 more will be inducted this year. I think China is aiming for around 200-300 of these birds. The real question is will they mass produce the WS-10 variant or wait for the target engine.