Huge cumulonimbus clouds from the highland mountains came over the city, and people ushered in three consecutive days of rainy weather.

After the coordination of the troops, the Chengluoma factory requisitioned a maintenance hangar at the third-rate airport, where the No. 01 black ribbon was repaired, and some important test flight data were exported for the first time, and then began to analyze the cause of the failure, find out the cause and solve the problem.

Li Zhan also temporarily stayed at the third-rate airport to cooperate with the work of the R&D personnel.

Due to the issue of secrecy, the No. 01 black ribbon could neither be returned to the factory by road transportation, nor could it be disassembled and transported back by transport aircraft, so it could only be flown back. Therefore, it must be repaired, at least to restore normal flight ability.

The manufacturer sent a large number of personnel and equipment to the third-rate airport, and the relevant units of the army also came, according to the estimation of the technical team, it will not be possible to complete the work here in a month. Just analyzing the cause of the failure is a big undertaking. Li Zhan did not rest after writing a detailed test flight report, but followed the R&D personnel to study it. His assistance could be more targeted.

The fuselage structure of the No. 01 black ribbon was not deformed, which surprised the R&D personnel. You must know that the nose of the plane suddenly fell in supersonic conditions, which was a very large overload maneuver.

Carrying such a high overload means that the fuselage strength test flight of the aircraft does not need to be carried out again, and there is no more convincing flight test data than the current data.

The most surprising thing for the technical team was that the two engines, which were thought to be seriously damaged, were all in normal condition. After a thorough and detailed examination of the power system, the cause of the power system failure was a problem with the electronic systems that controlled the two engines, which resulted in a loss of feedback from the engines to the pilot's maneuvering.

The more important problem is that there must be some kind of defect in the avionics system, at least the stability is not up to the design requirements. The technical team knows this. The fourth-generation aircraft is the most technologically advanced and complex fighter designed by China, and there is a process of gradual maturity in itself.

However, in the event of such a serious failure, the technical team was still reprimanded by the superiors, requiring them to immediately set up a research team to concentrate on solving the problem as soon as possible and completely eliminating the hidden dangers in this regard.

That's the value of a test pilot.

In other words, the planes flown by test pilots are faulty, and they are faults that can only be exposed by flying, not just the flight envelope that flies out of the plane.

Understanding test pilots from this perspective will give you a clearer understanding of the difference between a test pilot and a pilot. If carrier-based fighter pilots are dancers on the tip of a knife, then test pilots are life guardians who wrestle with death.

Including carrier-based fighters, test pilots first flew over to confirm that they met the design requirements and summed up a set of specifications before they were handed over to the pilots of the front-line troops.

Therefore, in many cases, the technical theoretical foundation of test pilots is no worse than that of professional and technical personnel, and even some powerful ones can guide the R&D team to improve and publish theoretical books. The test pilots were all golden bumps. For example, Chen Ming, although they may not be as good as Li Zhan in combat flight technology, but in terms of technical theory, the sum of ten Li Zhan is not as good as him.

The last time Li Zhan and Chen Ming were arranged, it was officially out of this consideration.

Li Zhan talked about his feelings, pointing out what kind of performance the plane should be, what kind of performance should be achieved and what the actual performance should be under the attitude at that time, these very specific opinions are difficult for the R&D team to understand, at this time, Chen Ming according to Li Zhan's opinions into professional guidance expressed in terms, the R&D team is easy to understand.

The two of them worked together for more than 20 days, ate more than 20 days of over-standard meals at the third-rate airport, and on the thirtieth day, the entire maintenance work was finally completed. A series of ground tests were carried out during the airport's late-night break, including ground test cars and taxi-run tests.

After another three days of ground tests to determine that the plane had regained its flight capability, in the fourth late night, Li Zhan drove the No. 01 Black Ribbon to take off from the third-rate airport and return to Chengloma Airport, and at the same time, the ground team also withdrew in one breath in the middle of the night.

The next analysis work is more and heavier, and a new round of improvements to the No. 01 black ribbon will be carried out. Then Li Zhan began to be idle.

Bao Guanhua found him and said, "There is no holiday during the Spring Festival, it will be May Day soon, while there is not much to do now, you take a vacation, and I will grant you 30 days of vacation." ”

Li Zhan smiled and said, "Old leader, you are not the leader of the army anymore, how can you give me leave." ”

"Even if I change jobs, you will be your leader." Bao Guanhua smiled and pointed at Li Zhan and motioned for him to sit down, "Wanjun is pregnant with a child, it's been six months, shouldn't you, a father, go back and see?" ”

Li Zhan suddenly became a little worried, and said, "Yes, I am very worried, but I am also a little scared. ”

"It's human nature." Bao Guanhua said with a smile, "It's like this for first-time fathers, my situation was worse than you back then, and I couldn't sleep all night." ”

"Really? I thought I had a problem. Li Zhan said in surprise.

Bao Guanhua said with a smile, "Having a child means taking on a family, and when the child comes out, you have to raise him as an adult, thinking about how your parents raised you, so it is normal to have doubts about your own ability." ”

"At the end of the day, I'm not mentally ready to be a father. You don't have to be too entangled, as the old saying goes, the boat will naturally go straight to the bridge. At that stage, you'll understand. ”

Li Zhan nodded slightly, "I hope so." ”

"Then what are you hesitating about, let me tell you, women especially want their husbands to be by their side at this time, which no one can replace." Bao Guanhua said.

Li Zhan said, "Understand, I'll go back tomorrow." ”

Nodding, Bao Guanhua talked about the work, he said, "This time the improvement action is relatively large, according to the current situation, the technical index level of the final delivery of the fourth-generation aircraft to the troops will be several percentage points higher than the original design." ”

He lit a cigarette and took two puffs, saying, "This also means that the standard of future test flights is higher, and it is very likely that many projects are not available before." You can think about how to carry out the test flight work later. ”

"Old leader, I have something to say that I don't want to vomit." Li Zhan frowned and said in a deep voice.

Bao Guanhua said, "Say, say boldly." ”

Li Zhan is no longer the young man who only knew the lever a few years ago, after more than three years of experience, he has matured in all aspects. He had made it so cautiously that it was clearly something that would not be convenient to say on other occasions.

After sorting out his thoughts, Li Zhan said, "I don't think it is realistic to design with the F-22A as a catch-up object. ”

This sentence was completely unexpected, Bao Guanhua never doubted this goal, and the R&D team never wavered from this belief.

Before the first flight of the Black Ribbon, the F-22A was the only fourth-generation aircraft in the world in the true sense, whether it was in service or under development. There is no problem at all with the F-22A as a catch-up object, and it is indeed done so, and even many technologies are more advanced than the F-22A.

There is no problem with the F-22A as the target to catch up!