It flies in the video and can maneuver. The real question is it's effectiveness in air combat. The U.S, U.K, France ,Russia and others have more experience with combat fighter aircraft. If China does close the gap then it may come down which country has the better air crew training regimen. The effectiveness of the missile armament is part of the equation as well.
By the way jim, the sparrow missile is a Aim-7. it's a medium-range semi-active radar homing air-to-air missile. I'm sure it was a typo.
