Hi,
Thanks for asking the question.
TACTICALLY----JF17 has replaced nothing---numerically it has replaced the F7's and mirages---.
Tactically---you have to look at the strategic position of pakistan before and after 9/11---. The position of strength was lost due to the procurement of the JF17's---.
Pakistan did not need the JF17 as its prime time aircraft---PAF might have---but it was not in the best interest of Pakistan---.
The capabilities are not judged against what is being replaced on your side---but the capabilities are judged against whom you are going to fight---.
Pakistan needed a right in your face kind of aircraft---that would have made the enemy squirm scream and holler---but---come to the peace table and sign on the dotted line---.
See---when I write Pakistan & Paf---I write them seperate---. Paf constitutes of traitors---.
They slapped Pakistan and its flag in the face when yesterday gave a departing salute to the Traitor Asghar Khan---the ex Air Marshall who called india and told them his air force would not fight them---.
This is despicable---. For younger generation of this board---there should be a hue and cry over it.
If you want to "inspire" the younger generation, you should put in more thought in your arguments and provide context as well as evidence to back your claims. Making claims without any substance behind them, you are in fact setting a bad example. You posted your opinion about "position of strength lost since 2001" due to the induction of JF-17 but what does that actually mean? And against whom did we lose it?
As a matter of fact, JF-17 first and foremost replaced two squadrons of A-5s, a 60s era fighter/bomber. It has indeed been replacing F-7s (another 60s era design). So yes, it has tactically replaced A LOT. Feel free to refresh yourself with the capabilities of these three jets such as weapons, ease of maintenance and flying, situational awareness etc, among the many benefits a 4th generation aircraft brings over legacy platforms.
As for your second point, even though now you have the luxury of hindsight, pray tell me which aircraft would fit the bill (besides F-16s of course, which we did induct, and still make the Indians lose their shit) that would have given PAF/Pakistan to make "the enemy squirm", as you put it AND be in the strategic interest of Pakistan. Do not put aside the fact that it would still need to replace some 200-250 aging aircraft btw. So take into account the timelines and costs and any other parameter of importance, in the induction of this mystery aircraft you have in mind.
While you formulate your response to the above, my opinion is that JF-17 is not and will never be the tip of the spear for PAF. It is meant to replace far far less capable aircraft in numbers and at the same time provide a platform that brings PAF into a new age across the entire air force, and not just a few squadrons. To that end, it has provided them, for the first time, an ability to massively improve their situational awareness and engage in netcentric warfare. If that is not a "tactical" replacement, then I am afraid I don't understand what you meant by the word.
On the latter part of the spectrum, (ie 4.5 - 5th gen platforms), the search continues, amid economic and politically turbulent times, and they will have the edge they need in due time. If it comes in 10 years or 15 is anyone's guess. If it comes after IAF gets a similar capability, then so be it.
So I fail to see your argument or your point. I am not even going to comment on you calling anyone a traitor, so gonna leave that aside. Wait to hear from you as to what alternates do you offer besides JF-17.