As I said, they are a class apart.
Systems and weapons integration? Yes, fully doing so may take some time. I am yet to see one picture of a JF-17 firing an SD-10 missile.
The JF-17 development overall has done pretty well compared to other 4th generation fighter developments in the past.
Here's a video of a JF-17 firing a PL-5 missile.
We cannot really say everything about how the JF-17 data links, since much of it are confidential.
And just what are you trying to prove here? Why compare the MKI? The MKI is licensed produced in India. There's a difference.
The key fact is that Pakistan did fund half of the development into the JF-17 project, and I did quote sources as proof.
Manufacturing engines, avionics, radars, etc is not the point here. It is the very nature of their business relationship here. What Pakistan makes is not the issue here.
But of-course, you may argue whether Pakistan actually 'deserves' to share the profit based on technical contributions alone, that can go on forever
They can still fly with Russian engines. The Russians have no problem with that, after all it'd put money in their pockets. And customers may have the option to integrate non-Chinese subsystems if they wish.
Would Chinese birds be viable for third world countries NOT looking for expensive Western birds in the future? The answer is yes.
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Other than the engine, all are produced in Pakistan.