I have mentioned in some post above already that Tranche-3 is what PAF should be looking into.
I think that financials have been used towards acquisition of JF-17 squadrons also. Probably R&D and up-gradation of JF-17. Could be a hint that PAF may go towards a new aircraft type after all JF-17 squadrons have been inducted. Block-III induction is yet to take place.
I agree,
Tranche-3 would make sense, Tranche-1, not so much.
Perhaps but all modern aircraft can now be upgraded to a particular requirement. For PAF, the 2nd hand / used / EDA market is attractive from a financial angle and money spent on upgrades is well spent. The Mirage ROSE program is a good example. The F16 program is similar. Block 15s upgraded to 40, ex - RJAF F16s AM / BM, these are good examples of service life extension when funds are in short supply. The EFT alleged purchase stalled because the Italian price estimates were too high.
It is extremely expensive to do an upgrade and You are likely to need support from manufacturers which will not be getting additional sales, so they will charge you for the full development - and more. The US provided off the shelf upgrades to the F-16. There are no such upgrade packages for the Tranche-1. Most companies will be looking at the bottom line, and your business proposal will be compared to other business proposals where additional business is to be had.
The Tranche-1 does not use the same flight computer as the Tranche-2 and 3.
It has much less performance, and cannot run the S/W that enables much of the functionality of the latter.
Not sure, but I think that I read somewhere that the internal communication buses are different, so You cannot even connect to new weapon on the most basic electrical level.
If You are prepared to rip out all the electronics and replace it with something Chinese then you would be able to enhance it in the future, but you would not be able to build more.
You need to compare the cost of such a program to the cost of buying new Tranche-3.
RAF does not believe it makes sense.