The rear engine bay has a diameter of 1.17 meters, matching the WS-10's 1.16-meter diameter.
The bomb bay is 4.28 meters long.View attachment 160207
Another measurement photo. Made by @LantianYY on Weibo.

The rear engine bay has a diameter of 1.17 meters, matching the WS-10's 1.16-meter diameter.
The bomb bay is 4.28 meters long.View attachment 160207
Perhaps that's why the IWB on the side instead of underbelly, it has tailhook underneath it.Definitely a real plane. You can make out scratch/scorch marks on the inner petals of the engine.
Also the wings are obviously foldable. Is there a tailhook on this?
Honestly, what impressed me the most was the crowd, with a large portion being teenagers and young males. They were joyful, cheerful, and almost overly hyped (lol). This demographic will be the ones operating advanced equipment and weapon platforms in the future, so seeing them in such high spirits is a good sign! It’s just like how a surge of young Americans signed up for the Navy when Top Gun was trending..
Footage captured by Beijing residents shows military parade equipment leaving the city, with tanks and CCA formations absent.
Tanks were clearly went to the railway station via another route
but the CCA? No one knows.
J-20S could already collaborate with the four CCA type drones seen at the parade. By the time J-50/J-36 achieves IOC block 2 or 3 of the same drones will be available, presumably with further optimizations such as 2D TVC nozzles, better engine, and superior radar/avionics and better AI decision making controller.
I think it's weird that PLAN prefer to use AL-31 for their J-15 but the future naval UCAV is using WS-10.