Frankly I don't know how much runway will be needed and neither did I claim that I did. But If it is important to the discussion I could look it up and see if there is anything out there on the web. As for RCS, nobody knows and that is the point I made on
@GriffinsRule 's post i.e. one should not assume RCS just on size.
You may be right on this one. But does the Indra EW suite being so good mean that the Chinese one has to be bad? Cannot one be less as good but still be good enough to get the job done? Are we certain that it is not an issue of miniaturization and weight also? That would impact JH-7AII less than and be less of an issue than for the Thunder.