Since he has been in the simulator, Xia Yu has become completely famous among the trainers in this issue, and not everyone has the flying skills that can suppress the opponent with a one-on-two, and a trend of Xia Yu has also become popular among the trainers. Even Sun Fei, who has never played computer games, began to know what ADC is and what MT is.

But what Xia Yu brought was not only the game, but also the amazing flight skills, the first to complete the ground course, the first to fly the actual aircraft, and then when everyone had just started to fly the actual aircraft, Xia Yu was selected and transferred to the J-31 test flight group as a test pilot.

Under the guidance of the ground staff, Xia Yu walked into a hangar.

Two planes were parked in the left and right areas of the hangar, and two planes were parked in a dust cover, and several people standing next to one of them were standing in a circle, as if talking about something.

The ground staff who walked into the hangar with Xia Yu greeted one of them: "Team Wang, this is Xia Yu from the training group, I brought him over."

"Pilot Xia Yu reports."

Wang Yifu raised his head, returned the salute after seeing Xia Yu, walked over and greeted him very enthusiastically and said, "Hello, Comrade Xia Yu, welcome, we have been waiting for you." I am Wang Yifu, the head of the test flight team, you can just call me Lao Wang. Come, let me introduce you to the members of your group. ”

After seeing Xia Yu and others greeting each other, Wang Yifu smiled and said, "Welcome to join the J-31 test flight team, Comrade Xia Yu."

"Is this the J-31?" Xia Yu looked at the plane that was tightly covered by the dust cover, and asked a little impatiently, "When can I fly?"

"Yo, in such a hurry?" Wang Yifu smiled: "The one you want to fly is the prototype verification machine with the number 31009, and it has not flown since it was manufactured, so it is waiting for you to fly."

Laughing and patting Xia Yu on the shoulder, Wang Yifu said to the others: "Come, pull down the dust cover and let our test pilot see his car."

As the dust cover was lifted, Xia Yu finally saw the latest fourth-generation fighter independently developed by my country.

Standing quietly in the hangar, the J-31 is like a falcon eagle with wings ready to fly, the nose and fuselage are diamond-shaped, the DSI air intakes on both sides, and the inclined double vertical tail are adopted.

After a few circles around 31009, Xia Yu turned around and said, "This model seems to be a little different from 31001." ”

"Oh?" Wang Yifu glanced at the others, with a slight smile on his face, and said: "The 31009 is different from the prototypes of the previous J-31 from the beginning of the design, and then according to the previous demonstrators, we have also made some changes, can you see the difference?" ”

This is to teach yourself, Xia Yu said secretly in his heart. However, he is not stage frightened, although he has not actually been in contact, but the test flight video of 31001 can be seen everywhere on the Internet. And as a professional fighter pilot, it's impossible not to pay attention to this new aircraft that is in full swing.

Pointing to the cockpit of the J-31, Xia Yu said: "The most obvious is the cockpit cover, the 31001 is a two-stage split type, which is not conducive to stealth, and this 31009 has become the same as the J-20, which is a one-piece type." The aerodynamic shape has not changed much, but the nozzle is completely different from the 31001. ”

Xia Yu pointed to the tail of the belly, looked at the two rectangular engine vents and said, "Huh? Isn't this a binary vector spout, or is it a fuselage-integrated design, and we have the ability to do this? Is our engine okay, I remember not seeing any projects in the push, is it the WS-13 Tarzan? Xia Yu, who was still explaining, was fascinated for a while, completely forgetting that he was being taught by Wang Yifu and others, and as soon as he turned around, he drilled under the belly of the machine, touched the position under the spout with his hand and muttered: "The design of the two-vector nozzle is not difficult to achieve, but the alloy process should not have reached the level that can be applied in reality, the estimated life is not long, and the yield in the factory will not be too high." But it would be great if it could really be applied to the J-31, the tail nozzle of the two RD-93 on the No. 1 verification aircraft has no stealth performance at all, so that the stealth effect of the fuselage side and tail is greatly reduced, and now it is replaced with a binary vector tail jet integrated by the fuselage, and even infrared suppression has been added, light on stealth performance, not to mention J-20, it is not worse than F22, I just don't know how the engine thrust-to-weight ratio is, 10 will not be said, if it can be on 9, hehehehe......

Xia Yu was almost smirking with drooling, starlight in his eyes, and he almost couldn't wait to try it. Originally, Wang Yifu and others did not have the meaning of teaching Xia Yu, since Xia Yu had been selected as the test pilot of the 31009, the design performance and design technical parameters of the aircraft should be fully mastered by Xia Yu. At first, he just wanted to make a joke with Xia Yu, but he didn't expect that he would guess just by looking at his appearance, and even the current shortcomings of this fighter were almost clear, Wang Yifu and others couldn't help but have a little more surprise in their admiration.

After all, a capable test pilot to test fly a new type of aircraft will not only get a good idea, but also be quite efficient.

Got out from under the belly of the plane, and Xia Yu climbed into the cockpit along the ladder again. After getting Wang Yifu's permission, Xia Yu turned on the on-board computer, started the simulation self-test, avionics system, radar system, control system, weapon system, life support system, ejection system, almost everything was simulated by Xia Yu.

Fifteen days later, Xia Yu has completed the ground course, and now the verification machine numbered 31009 is ready to wait for its first trip to the blue sky, and today is not an endless clear sky. In fact, whether it is an air show or a flight for testing, the weather that is really good for observing the airplanes in the sky is like today, the clouds are very high, not thick, but just enough to block out the sun's dazzling rays.

At the end of the runway, in the cockpit of the J-31, Xia Yu was doing the ground inspection before takeoff, and in front of his side, a J-15 was preparing to serve as an escort. Piloting the J-15 was Wang Pengyu, a test pilot of another J-31, with the test flight code 08. He only finished the J-15 training mission two days ago and joined the J-31 test flight team, so he is still in the ground learning stage.

"The engine has been warmed up, and the take-off check has been carried out."

"The tower receives it and is ready to take off at any time."