Chapter 157: Reproducing the Drone
As Yang Luo's voice sounded, warm applause suddenly broke out in the monitoring room of the tower.
The rumored 145 km/h was really reached, turning the rumors into reality.
Chief Engineer Wang couldn't help but smile on his face, and said with great satisfaction, "Okay, maintain a speed of 145 kilometers per hour and fly for twenty seconds, and then change to return home." ”
Yang Luo just wanted to respond, and suddenly an idea popped up, what would it be like if he touched the angle of attack limit and raised the angle of attack by 01 degree, is it really a stall?
So Yang Luo said, "Tower, I want to lift the angle of attack restriction and try it?" ”
"No, that's going to stall." Chief Master Wang vetoed.
Yang Luo argued, "My current altitude is five thousand meters, even if I stall, there is no danger, tower, let me try." ”
Chief Engineer Wang turned his head to look at the major general on the side and asked, "What do you mean?" ”
The major general thought for a moment and said, "No one has done such a test yet, and the altitude of five thousand meters is enough to change the stall, so it doesn't hurt to try." ”
"You can try, pay attention to maintain the posture of the fuselage, and do not enter the stall tailspin." Chief Master Wang nodded and gave instructions.
The stall tailspin is not the content of the test flight, and there is no need to test the flight stall tailspin for the J-10C, so Chief Engineer Wang specially reminded that he did not want to increase the danger in vain.
"Understood." After Yang Luo responded, he silently counted the seconds while stabilizing the posture of the fuselage.
Today's twenty seconds passed quickly, and it was not as good as the last moment of flying at a low altitude and a large speed.
When Yang Luo counted to 20, the angle of attack restriction was lifted, and the position of the canard wings and flaps was adjusted again despite the warning of the system, so that the angle of attack increased a little more, less than 01 degrees.
Although the AL-31FN engine roared and burst out with maximum thrust, the drag also increased with the increase of the angle of attack, and the speed of the J-10C decreased again.
At the same time, the yellow alarm in the cockpit turned into a red alarm, and sounded rapidly at the highest frequency of "Dididi".
Fighter stalls!
Sure enough, 26 degrees is the maximum angle of attack of the J-10C in normal flight, and if it exceeds the limit of 26 degrees, the lift will become smaller, which cannot offset the gravity, and the fighter will stall and fall.
At this time, the J-10C is not falling in a straight line, but falling in a parabola, after all, there is still a speed in the horizontal direction.
Yang Luo grasped the attitude of the plane well enough, and the wings on both sides were stalling at the same time, so he did not enter the tailspin, but simply stalled.
Yang Luo did not panic, his face did not even have the solemnity and solemnity when he first started the test flight, but became very calm, and even a smile appeared on the corner of his mouth.
It's just a stall, what is there to be afraid of, even if it is a stall tailspin that is known as a death forbidden zone in the aviation field, Yang Luo can face it calmly.
"Report to the tower, the Raptors 11 has stalled." Yang Luo reported calmly.
"Let's go back to the ship instead." Chief Engineer Wang has seen the flight trajectory of the J-10C from the monitoring, it seems that 145 kilometers per hour is the limit of the J-10C, and it can't be lower, so he had to say helplessly, his tone was not anxious because of Yang Luo's stall, but was very indifferent, as if Yang Luo was not facing danger now, just flying normally.
Including the others on the tower, they didn't show a worried look for Yang Luo on their faces, but looked at the screen very calmly, after the baptism of low altitude and high speed a few days ago, they had clearly recognized Yang Luo's flying skills. And he has just flown a limit speed of 145 kilometers per hour, and if he can't even change the stall now, it will be a big joke.
"Understood, it's being changed." Yang Luo replied unhurriedly.
At the time of Yang Luo's report, the fighter had already fallen to a height of more than 200 meters, and the falling speed at this time had reached 50 meters per second, and the falling speed was still increasing under the influence of gravity.
The speed is 80 km/h and is still decreasing.
Yang Luo showed a faint smile on his face, and adjusted the position of the canard wings, flaps, etc., so that the angle of attack returned to the normal flight range, and the angle of attack restriction that had been lifted returned to the locked state.
Pressure rod, dive speed increase.
The nose of the J-10C responded instantly, sinking rapidly, and the flight attitude of the fighter changed.
The best way to change the fighter stall is to dive to increase the speed, and then pull up and change it after gaining enough lift.
Of course, a fighter that has not entered the tail spin and is only stalling can also rely on the thrust of the engine to increase the speed, but it is very difficult to grasp the fuselage attitude in this way, and once the wings on both sides get different speeds before gaining enough lift, they will fall into the stall tailspin, which will only increase the danger.
Basically, no one will take such a way, unless the altitude is not enough to dive and want to fight to save the fighter, but the plane stalls is not enough to dive at the height, the tower will generally choose to order the flight of the subun parachute jump, and will not risk to save the fighter, it is too dangerous.
The J-10C dived downward, the speed was getting faster and faster, it had already gained enough speed, and the aerodynamic effect had already been restored, but Yang Luo did not rush to change it, but continued to dive, holding it for two days and not flying, he didn't want to go back so quickly.
"Raptors 11, what are you doing, hurry up and get back home." Chief Master Wang saw through the surveillance that Yang Luo was slow to pull up, and reminded him loudly.
"Tower, it's only been less than twenty minutes since liftoff, so you can let me fly for a while." Yang Luo said, still not to change it.
Yang Luo's words shocked everyone in the tower, and they actually bargained with the tower.
Chief Engineer Wang remembered the news he heard from the 122nd Regiment, saying that Yang Luo would never return if he did not fly to the aviation fuel alarm during training, unless the tower gave an order, so he had to cry and laugh and ordered, "Raptor-11, today's test flight mission has ended, I order you to return." ”
The tower has an order that must be followed, so Yang Luo had no choice but to reply, "Raptors 11 has received it, and it is being changed out, preparing to return." ”
Just as Yang Luo's lever changed to a dive state, his eyes left the dashboard he was staring at, and he inadvertently swept the desert below the right front, and suddenly noticed an anomaly.
A ray of light reflected into Yang Luo's eyes, and when he looked at it, it was a drone flying in the air, because it was too far away, he couldn't see the specific appearance, and he could only recognize it as a drone from the outline.
As the test flight airspace of the test flight institute, the airspace over this desert belongs to the no-fly zone, which prohibits any civilian aircraft from entering, and military aircraft also need to be reported.
But now that this drone is here, whether it is inadvertently entered, or uneasy, or has been reported, it is worth paying attention to and must be investigated.
"Call the tower, Raptors 11 found a drone in the no-fly zone, please confirm whether it is reported." Yang Luo reported to the tower, staring at the drone with both eyes, and at the same time pedaling the rudder to turn and meet it.
。