disagree with the part in bold, blk52s aren't even close to combat capabilities of the J10Cs, blk52s lack IRST, AESA radar, while the J10Cs have then and on top of that they are also armed with the 155km range PL15s and HOBS PL10s, it outclasses the blk52s that carry the AIM120Cs with a max range of 110km and don't carry any HOBS missiles. Plus the J10Cs carry fast more offensive sensors than the blk52s do.
PAF's F16s are destined for a purely defensive role supplemented by F7PGs, the offensive punches will be delivered by the JF17, J10C & Mirage trio.
Why are all countries studying single middle push and double middle push instead of single big push except China's J-10?
Because the F16 has brought the performance of single big push fighter to the extreme.
The aerodynamic design of F16 is the most balanced aerodynamic design so far. It highlights the mobility in subsonic and transonic segments, taking into account the low altitude mobility and supersonic performance.
The maximum flight speed of F16 is 2M, and the horizontal growth rate before 1.5M is also good.
F16 has high lift coefficient, low wing load and high thrust weight ratio, which makes F16 very stable.
the subsystem of F16 is reliable, including engine, radar and cockpit (perfect bubble cockpit, giving the driver excellent cockpit vision).
F16 is also cheap, strong and durable. The service life of F16 is 6000 hours, and the service life of some F16 is more than 10000 hours
F16 also experienced a lot of actual combat. For example, from 1985 to 1989, Pakistan's F16 shot down 10 Soviet fighters in the border area, including 4 Su22, 2 an26, 1 an24, 1 Su2 and 2 MIG23.
F16b50 / 52 is a very important upgrade. It is equipped with 130kN high thrust engine (f110-ge-129 or f-100-pw-229), which enables F16 to increase the empty weight to 9 tons when ensuring the thrust weight ratio.
Conformal oil tank is added at the back of F16b50 / 52, which increases the internal oil volume by 1.5 times.
F16b50 / 52 can use harpoon anti-ship missile.
Yes, the F16b50 / 52 radar has not been replaced, not electric scanning. F16b50/52's radar and missile range is not as good as J10C, but its low altitude mobility is better than J10C, and F16b50/52 is more multifunctional, and it also has the conformal oil tank.
Comprehensive technical level, J10c and F16b50 / 52 are at the same level.