Northwolf, thanks for the info, didn't know Fins had J-35s
Now, ever since WWII it was established that it is far better to have superiority in vertical maneuvres in a dogfight rather than turning
horizontally. any MiG-21 pilot knows that he shouldn't engage in energy bleeding maneuvres (same goes for Mirage). The MiG just asks for a particular
style of piloting, if you stick to that, no J-35 can mess with it (and very little other things, none until the late 70's). Low wing loading means
nothing by itself, if it did, the best WWII fighters would have been the Yak-1, Spit MkI and A6M Zero. Instead the best were Me-109G, FW-190D, La-7 ,
Spit MkIX and P-51 which had much greater wing loading.
A stupid MiG-21 pilot will lose a fight against MiG-17 (like stupid F-4 pilots), because the 17 can turn on a dime. A smart 21 pilot can take out 4
17's without them getting a chance. You have to exploit your advantages, not fight like the opponent. An A-10 can turn better than F-15, so what, is
it a better dogfighter?
The MiG-21 bis has better climb rate and roll rate than J-35. So, that's what you use. I believe Northwolf that the J-35 would be better at low
speed, lo altitude, hard turning fight, but that's an experiment, done to check the envelope of both planes, no MiG-21 pilot would fight that way
unless he's poorly trained or has a death wish.
The same way, Greeks have Mirage 2000 and F-16C. They say the F-16 is better at lo altitude, lo speed, hard turn, and Mirage 2000 is superior at
hi-hi. But most say that if you are at war, the Mirage is the one to have. You can always counter a turning target by keeping your energy state
higher. But you can never out-turn a fighter that doesn't play by your rules. The MIG-21 has long been established as the best dogfighter of it's
time. For the J-35, you're only speculating. It's exotic, interesting, but if it was that good, there would be more planes that looked like it.
Good designs are always copied to some extent (Chinese still exploit the 21 airframe, French are still making Mirages), ever seen another fighter to
look like a J-35?