The Sukhoi has TVC in a V (OFF AXIS 2D TVC... SEMI 3D TVC) . The TVC would kick in and push the aircraft the direction when the pilot engages the switch on the stick. All this is formidable on paper but what you would know is that with the TVC kicking in, its a huge aircraft, and thrusting such a huge aircraft in that direction creates a lot of drag. It's a biiig airplane. A huge airplane. We had enough experience with the F-22. which has up/down TVC nozzles.
What would happen is that the in a merge with the F-22... From our experience, that's the only way you would get the F-22. and the only way - this happens only if there is an inexperienced pilot because the experienced ones never make the mistake. You would be pulling in scissor fight hoping you would get the F-22 in your sights (laughs ). The F22 can sustain a turn rate of 28 deg per second at 20,000 feet while the F-15 can get an instantaneous rate of 21 and a sustained rate of 15-16. So you are pulling and hoping. Post stall, maneuver, the ass end drops and instead of going up, it just drops in mid air. This is where the F-15 pilot would pull up vertical, switch to guns, then come down and take a shot at the F-22. Of course you have to first get in close to do this, most probably the F-22 will kill you before that.
The Su-30? No problem. Big aircraft. Big cross section. Jamming to get to the merge, so you have to fight close... he has 22 - 23 degrees per second sustained turn rate. We've been fighting the Raptor, so we've been going oh dude, this is easy. So as we're fighting him, all of a sudden you'd see the ass end kick down, going post stall - but now he starts falling from the sky. The F-15 wouldn't even have to pull up. slight pull up on the stick, engage guns, come down and drill his brains out.