Brother you are right, the origin for J11 and J10 is Russian. But look at the whole picture, sure China acquired the technology from Russia but through indigenous they have further improved the J10 and J11. In the past China needed Russia's help regarding advanced weaponry such as figher aircrafts, but keep in mind that China has a much higher budget in R&D as compared to Russia and India. Russia and India are not even in the top 10 list of R&D spending, the reason why Chinese Defence Industry has grown soo fast is because of the money that Chinese are pouring in(they will overtake the US in about 10 years). As far as the JF17 are concerned, yes it is being fitted with Russian engines but even if the Russians wouldnt have allowed the reexport there were still other options. Although we are very thankfull to our Russian friends that they allowed the reexport of Russian engines, but dont be surprised if the Chinese develop a better aircraft engine than the Russians . To sum it all up, the Chinese have relied extensively on the Russians for there defence needs in the past but now China has spend billions of dollars to improve its own domestic industry.
sir your point of view is right absolutely but building fighter aircraft is not about how much you spend take the example of indian LCA project they spent a fortune does the plane ever compare with the present flanker,eurofighter or rafale its no where close to it.
also why do you think US the EU going for joint design and production because in the future its impossible for a single country to produce quality product.look at the eu the jsf program for the us, the pakfa for the russians. if you think that china can achieve what the us and ussr did in 50 years in 10 years or so then you are mistaken sir.
no offence to the chinese people but sir just look at what the chinese people achieve in terms of technology that is comparable to the best in the world. and going by chinese education standards their r&d is not much on which i can bank on.
the fact is china is an economic powerhouse and they will use their economy to arm twist the west.
give the chinese a toy and they will make an exact or better copy of the original, ask them to design a toy they will end up with something not even comparable.
its a opinion of mine personally and some of my chinese friends here in moscow.