Again incomplete knowledge and half truths.
Please read more about Chinese aero industries. You seems to have very little knowledge about.
for the starters read the products they have launched in last 5 years
PS: We can counter their propaganda only when we know what is true and what is not.
Shaanxi Y-8 copied from Antonov An-12.
J-7 copied from MIG-21
Shenyang J-11- copied from SU-27
J-16 copied from SU-30
J-10 copied from Israel - 2006, the Russian Siberian Aeronautical Research Institute (SibNIA) confirmed its participation in the J-10 program; SibNIA claimed to have only observed and instructed as "scientific guides", while its engineers also believed the J-10 was "more or less a version" of the
IAI Lavi, incorporating "a melting pot of foreign technology and acquired design methods
Russia trolls Chinese J-15
https://www.google.com/amp/s/www.bu...et-which-beijing-stole-from-moscow-2018-9?amp
Russia rips China's J-15 fighter jet, which Beijing stole from Moscow - Business Insider
In interview tejas pilot said these things-
. Instantaneous turn
“Snaps into it! However, the traditional drag of the delta platform does start showing after a while.”
B. Sustained turn
“Mid mach numbers and mid altitudes, good. Like an aircraft of its size, affected by stores carried.”
C. Acceleration
“Climbs well, and the acceleration is good. The continuing refinement in the drag department is an ongoing process which aims to make this better still. With every drag count being ‘counted’ with a fine tooth comb, it will only get better”
D. Climb rate
“Reasonable and meets the specs laid out.”
E. High alpha performance
“Fabulous! Difficult to enter a difficult situation with respect to this… a very robust control law makes the Tejas a winner here. Do remember though, that comparisons with itsthrust-vector control- equipped Russian cousins would be unfair here. The nose holds up well in low speed fight, and the ALSR makes you trust the aircraft. High angles of attack manoeuvres and reversals are comfortable, albeit with a little ‘barrellish tendency’. Though like any flight control system controlled fighter, the rate of roll and pitch rate does go down with high AoA and/or high pitch angles.”
( which itself tells how successful it's delta wing design is)
If we talk about project released in 5 years then india itself is working on 3 different exclusive projects.
I'm talking about what china's till date main indigenous fighters which are in service.