Who is pupu? To have four 5 gen is both conceptually and financially impossible IMO, an unnecesssary waste really.
I think F-60 can hardly be exported within 20 years. Pakistan aside, only 2 regions in the world could possiblely afford it:
1. ME (wait to see Saudis jump ship or hedge bet... or no?)
2. Brasil + Argentina (depending on China-Brasil strategic pact...too big political impact as it's US backyard...worsening relationship with the UK...since UK could then kiss the Falkenlands goodbye).
As for PLAN, actually I think the best / the most powerful move would be navalised J-20. Except launching F-22A from Ford Class, the all-mighty US pacific fleet could be a sitting duck if J-20 is on Varyag as it's far more lethal platform than F-35B/C.
To be frank I don't see how F-60 could be used for sure, except perhaps some purchase from PLAAF to keep SAC alive?
So logically, F-60 has no real adv against potential naval version J-20 except some minor experiences of making J-15 which can be shared by J-20 since both CAC and SAC are under AVIC, no?
The most practical way, to follow the logic, is thus to have two 5th gen only: J-20(&its naval version...hence lower cost via economy of scales), and some F-60 for PLAAF perhaps? Dunno who is pupu, but sorry I don't agree with him.
did you read the link I posted? if you did, and you'd know most members there were dissagreeing with PuPu...
the state did not found SAC's 5th gen fighter, since they lost the project to CAC during the concept stage````
it is said that SAC put money themselves to keep the project going, while changed their strategy which is to choose mature platform and equipments to make F-60 rather like high risk CAC's J-20, too many new concepts and techs involved, and mentioned the price is quite high`!
for the financial feasibility, SAC has to make sure that F-60 will make some money (domestically and internationally)..and this is probably how they sized up the current situation:
1. for domestic reason, CAC's J-20 is too big and heavy (max load wieght 40t) for AC, so in order to win PLAN deals they have to reduce the size and wieght of J-20, it is more likely to develop a new plane, because any changes to the areodynamics can affect the flying charactors in great deal,
and since CAC are too much engaged with J-10B and its future developments, J-20 and strategic UAV, so it constraints CAC's manpower and financial availability to do so.
2. on the international stage, the only feasible 5th gen fighter is F-35, which is over priced and has too many fancy stuffs that lots of small and developing countries dont really need, and also it has too many strings attached when doing businesses with U.S. in terms of T-50, SAC has long tradition of dealing with russia equipments, and it seems that they do not highly value T-50, there are reasons that we do not know`(could be avionics, price or project completion time)`!!