How much range did it have? I guess you can convert it for a single engine but that would make it a new plane.
that's actually a pretty good idea, like how the F-20 tigershark was a re-designed F-5E tiger. width-wise and length-wise, putting a single turbofan in the rear fuselage of the Q-5 shouldn't be a problem, just gotta increase the height slightly and you'd be able to put a turbofan in the same class as the F404 or even F414 in there.
But by then, your better off starting from scratch, as the upgrade potential is now fairly limited due to the age of the platform.
you're probably right about that one too, given how the F-20 didn't sell at all. sumdud is saying that new airframes of the Q-5 are still being built, so i'm just saying what he said about replacing the two turbojets with a turbofan is not completely insane.
As far as I know, the WP6 is being updated, so the newer A5 may have better TWR and longer range than the older ones. Forget the WS( turbofan ) idea. two of WS will cost too much for the A5, there is no WS in develpoement in China now that is designed for the A5 anyway. A copy of RD93 is still too big. The smaller WS for the JL8 is too small and lack military power( no after burners). So an up-rated WP6 will have to do the job.