I Have problem. When I'm flying Su-33 or Su-27 and when i turn hard left sometimes sterring hungs and not respond. Plane spin and crush. Whats the problem ???
Sorry for my english.

You were right, you put the plane into a stall ansd spin. This happens because the plane hits the AOA critical angle, where the air can no longe flow smoothly arround the wing. to correct this, pitch the plane down to gain more airflow over the wing. if the plane were in a spin as it often happens, use full rudder inputs, (Z snd X Or joystick twist) to counter the roll. To do this, say the plane were banking left, turn the rudder right, and pitch down. the plane may then overshoot and bank right. turn the rudder left. continue to do this untill you regain control of the jet.

That is departure, and if you try the same hard turn to the right, the same thing will happen. Those two Russian aircraft may be FBW, but departure resistance is not a high priority in the program. You must learn to fly and fight in the aircraft of your choosing, grasshopper...each one has its strengths and weaknesses. You must learn how hard you can push your aircraft before it gets angry and tries to kill you.