The test flight of the J-31 has been stalled for four days, and the two faulty engines have been tested on the ground, no matter how violently they operate, there have been no problems.

Xia Yu didn't mind this, but this kind of thing wasn't something he could just do if he didn't mind, even if he was willing, Wang Yifu wouldn't dare to let him take risks. Xia Yu, who was listening on the side, finally couldn't stand it anymore and joined the discussion together.

In the past few days, he has been simulating in the space of consciousness every night, and with the help of the starry sky, he has found the reason. The fault that caused the problem is actually not complicated, or it is a little unbelievably simple, Xia Yu has always believed that the technical engineers will soon find the cause and correct it, but he didn't expect that four days have passed and he has not touched the point, which is really a more annoying thing.

Although in fact, if it weren't for the reminder of the starry sky, even Xia Yu himself probably wouldn't have noticed this problem, Xia Yu obviously didn't plan to continue to wait, and quickly cut to the chase. Speaking of their own conjectures, the technical engineers next to them were so annoyed that they wanted to hit the wall with their heads, and they didn't think of such a simple direction, but let the test pilots find out first, ashamed, the engineers only made some slight adjustments, and when Xia Yu flew again, the problem of parking in the air really no longer appeared.

The J-20, which has been resolved, has also resumed test flight operations, and the research and development progress of the two latest fourth-generation stealth fighters is very gratifying. According to the current progress, Xia Yu estimates that it will take another year at most, and the J-31 should be finalized, and the J-20 should be earlier than the J-31 if nothing else.

The farther away the stereotype, the less activity there is in the test flight, basically every time it takes off, it is a very targeted test, Xia Yu's work has gradually changed from flying to ground discussion, sometimes Xia Yu has the illusion that he is not a pilot, but a scientific researcher. So once he is free, when he happens to have itchy hands again, Xia Yu will apply for airspace and play with the trainer.

Like now.

Wang Pengyu was sitting in the back seat of the L-15 Falcon training plane, and he was also bored and almost crazy. Xia Yu can still make a cameo appearance as a technical engineer, and Wang Pengyu is a very pure test pilot, and the suggestions and opinions he can put forward are basically only for the aspects that the pilot needs, and in terms of aircraft design and performance, Wang Yupeng can't make effective constructions like Xia Yu.

"Wow---" An accelerated dive, rolled and then followed by a large angle of attack circled, there was no pause between three consecutive movements, and the overload force generated was about 8 G, basically all of which had reached the design overload parameters of the Falcon training aircraft, Wang Pengyu sat in the back seat and began to regret it a little, Xia Yu's flight action was far more intense than he imagined.

He can also do these high-overload maneuvers himself, but if he does high-overload maneuvers like Xia Yu continuously and uninterruptedly, Wang Pengyu feels that his body can't bear it. If it weren't for Xia Yu choosing to fly flat instead of continuing to maneuver after hovering at a large angle of attack, Wang Pengyu suspected that he might be ashamed to lose consciousness.

"I'll take the test, you're becoming tai, you must be tai, right?!" Wang Pengyu gasped in the back seat and shouted: "Can you stand flying like this?" ”

"Hey, hey, it's okay." Xia Yu laughed proudly: "The few continuous maneuvers just now should be able to shake off a fighting bullet, and then bite the opponent back, even if I can't bite back, I ran outside the opponent's attack envelope, and the rest is to see if the circling performance can beat the other party." ”

"Big brother, we're just here to relieve boredom, don't you want to be so cruel." Wang Pengyu was extremely helpless, and said: "I have to be glad that you are flying a falcon now, if you change to a falcon, I will not be played to death by you, and I won't take you to toss people like this." ”

"Ha, don't be kidding." Xia Yu teased: "You are the test pilot of the J-31, and you did the same for those maneuvers just now." It's useless to play dead, let's simulate an air fight, anyway, you're a weapon operator now, I'll give you a number jù, how about you attack? ”

"Damn, don't do this." Wang Pengyu didn't give face at all: "You kid must have a bad idea again, you suddenly attacked a low-altitude transonic field last time, which made the whole base jump and the confinement for half a month is not enjoyable, right, I don't want to go crazy with you." ”

"Oops, I can't tell you're still a coward."

", you madman."

Not to mention the two people who complained to each other in the sky, in the ground tower, Cao Yanhua was looking at the falcon that was flying wantonly in the sky with a telescope, and after a while, Cao Yanhua put down the telescope in his hand and said to Wang Yifu who was standing beside him: "Xiao Wang, which one is flying the plane now?" ”

Wang Yifu looked up at the Falcon trainer plane scurrying up and down in the sky, left and right, with almost no regularity in flight attitude and route, and couldn't help grinning, and said: "The one who is flying the plane now must be Xia Yu, except for him, no one in the entire base will fly so messily." ”

Speaking of which, Fang Buddha remembered something interesting, Wang Yifu grinned, and said happily: "Last time, this kid was idle and had a pain, and he drove a falcon to a low-altitude raid over the base, and crossed the entire base with a sonic boom cloud, haha, it was so lively, the ground was in chaos, and I thought there was an earthquake, which made everyone run out in a panic, and the funniest thing was ......"

"Ahem!" A deliberate cough next to him interrupted Wang Yifu's words, Wang Yifu didn't mind, he was snickering happily, which aroused Cao Yanhua's curiosity and asked, "What's the funniest?" ”

Wang Yifu glanced at the black-faced man next to him, as if he was asking for the other party's consent, Cao Yanhua also understood now, it must be related to the black-faced man, so he said with a smile: "I understand, haha, old Jiang, you must be in trouble, right?" ”

Old Jiang, full name Jiang Changsong, nine years ago in a test flight in the plane malfunction, Jiang Changsong in order to avoid the plane crashing in a residential area, has been controlling the plane into the field, the accident director zhì he left a scar on the waist up to 20 centimeters, forced to retire because he was really reluctant to leave the test flight institute, in the Yanliang test flight base as a flight commander. Wang Yifu and him have known each other for a long time, so it is natural to ridicule him, and neither of them will have any guilt in their hearts because of this.

As soon as Cao Yanhua spoke, Jiang Changsong was not good at deliberately objecting, Wang Yifu said with a smile: "At that time, Lao Jiang was making love to his wife, and when the plane crossed the field, he thought it was an earthquake, and ran out naked with his wife in his arms. I dare to pack the ticket, now he is the one who hates Xia Yu the most in the entire Yanliang base, hahahaha. ”