One thing I noticed is when Pak rebuilds Mirages, they don't treat the metal for fatigue using metallurgical techniques. Some of the ways this can be done even I have learned via personal research. There are ways to get some reduction in fatigue using metallurgical processes but Pak engineers didn't learn or use them.
They seem to copy how the Americans work on their F-16 rebuilding but they miss out an important point - F-16s have advanced materials, composites, which is very different from all aluminium airframes of Pakistan's airframes. The treatment metallurgically of these later types is a lot simpler and effective, while the former has no case for such treatment and need replacement.
The inability to think, research, learn, and be dependent on copying goras is a critical weakness that shows up everywhere ultimately.
