''The USN evaluation of the F-8E found that the MiG-21 could out turn the F-8 in a close-in fight.Zoom performance was comparable below 25,000 ft and on station time was also comparable. Large size and prominent smoke trail was a disadvantage. The F-8E was capable of exceeding the MiG-21 speed limit at low altitude. Acceleration performance was ...

Maybe book ''Fighter performance in practice; Phantom vs MiG-21'' at eBay (I think it can be downloaded free on net), tells something about family abilities...

One can find double delta J-7G and radicaly changed JL-9 MiG-21 derivatives interesting... Maybe article better describes family potential... Try to point at and shoot well flown MiG-21! Predrag Pavlovic, dipl.ing. and Nenad Pavlovic, dipl.ing, JAT Airways Maneuverability of modern fighter is measured by how slow it can fly and how high angle ...

any opinion on topic ?