"Kt-3012 is preparing for the tenth test. Please get everyone in place." "Attention to all units, the kt-3012 experimental aircraft has begun to refuel propellant. Please ask ground staff to conduct a final inspection of the test aircraft." "Kt-3012 is entering the take-off track, everything is normal." Gao Xuezhong steadily pulled the joystick, and the aircraft took off in an instant. "Tower, this is kt-3012, I am Gao Xuezhong, the instruments are all normal, altitude 252, heading southeast, accelerating, over." "Tower understands."