Watching the wreckage of the plane being towed away, and smelling the stench of burnt cables on the ground, the rest of the people could only shake their heads in frustration and then slowly leave.

"Yang Hui, let's go too, we can only find a guest house to live in tonight, we have to wait for the notice from the factory tomorrow, I don't know when I can go back this time."

Captain Zhang called Yang Hui to prepare to leave. Climb into the car, and with the roar of the car, get farther and farther away from the forced landing point of the plane. until the runway is out.

"What can be seen as the cause of this accident?" Driving the car, the captain asked Yang Hui again, although he didn't understand, but this didn't prevent him from inquiring, after all, it was still related to his work.

"Primarily, it should be an engine problem, but what is going on with the engine will have to be further studied in the Liyang factory and our two institutes tomorrow."

It must be an engine problem, Yang Hui knew it at a glance, so now it seems that the main task is to see what caused the engine accident.

Captain Zhang has nothing to say, no one can say anything about such a thing. The car stopped in the cafeteria, and the two went down and hastily pulled two mouthfuls before getting into the car and going to the guest house.

When I arrived at the guest house, I parked the car and walked upstairs, just as the young man in a tunic surnamed Liu also went back to the guest house, and when he saw Yang Hui and the two of them, he looked arrogant, turned his head and walked straight to his room.

"Alright, let's go back tomorrow! I called the factory, and tomorrow the factory will send someone from your office to come over, so let's go to bed first. ”

After speaking, Captain Zhang also walked into the room silently.

…………

The next day,

"Get up, wash up before you go to dinner, and we'll go over later. The comrades who came to the factory overnight were all over there. ”

Captain Zhang and Yang Hui both got up at about the same time and met in the aisle.

"Well, let's do it!" Unexpectedly, such a delay occurred, and Yang Hui didn't bring personal belongings, so he washed his face with water and was ready to eat.

At half past seven o'clock, Yang Hui and Captain Zhang, as well as a young man in a tunic suit, arrived at the workshop where the wreckage was parked, and most of them arrived. There are a few more people than yesterday, and some of them are fresh faces.

A group of people were disassembling the plane, and now it was no longer visible as it was, scattered on the side, and someone was checking something by the parts.

Chief Master Yu was communicating with a man of his age at the tail of the plane, it seemed that he should have arrived overnight last night, and Yang Hui walked over there.

At this time, the wreckage of the engine was also dismantled, placed on the bench and pushed aside.

When Chief Master Yu saw Yang Hui coming, he felt that this young man looked good yesterday, and nodded as a greeting.

"Director Bai, is this person yours? Yesterday was pretty good. ”

Hearing Chief Master Yu speak, Director Bai turned his head to look at Yang Hui, who didn't seem to know him yet.

"Who are you, I haven't seen you, have I?" These words immediately pulled Chief Yu's gaze over, he didn't expect Director Bai to know Yang Hui, could it be that Yang Hui was lying to him.

Yang Hui didn't feel anything, and said, "I reported the day before yesterday, and Section Chief Tang hadn't arranged a job for me yet, so I would accompany my friend to a report first." I didn't expect this to happen in the end. ”

Suddenly, Director Bai reacted, "Yes, yes, I remembered, Section Chief Tang told me about you yesterday." ”

Speaking of which, Chief Master Yu understands that he is also a newcomer who has just reported. However, this added to Chief Engineer Yu's good impression of Yang Hui, after all, it was very eye-catching for a newcomer to have that kind of performance yesterday.

"It's pretty good, it's also 0430 Lao Wu who wrote a letter of recommendation, it looks pretty good." Director Bai was of course happy when he heard Chief Master Yu praise the people in his house, and he should have added two good words.

Knowing this origin, Director Yu felt that Yang Hui's performance yesterday could explain it. smiled and said, "It turned out to be cultivated by Lao Wu, but it's a pity that his project is in the current situation, hey, don't talk about it." Cultivating a good seedling is cheap, and you grow in vain. ”

Director Bai listened to it and said with a smile, "It's good to know, don't spread it around." Then you turned his head and said to Yang Hui, "Come on, let's take a look at this accident with us first!" Every accident is a painful lesson and experience, and you have to learn it well, it is very beneficial. ”

followed Director Bai Yang Hui to the engine together. Someone is already starting to disassemble the engine. I opened the receiver and took out the compressor combustion chamber and turbine, and once again saw that the core engine that had been taken out was even more dilapidated. The blades that broke from the high-pressure compressor broke all the way to the rearmost two-stage compressor as the engine rotated, and six of the ten tubes in the ring tube combustion chamber were broken, and the next two sets of turbines were also shattered. The gas generator at the heart of the whole is not clear where there is anything good.

Looking at the engine that was turned on, everyone gasped, and the engine was probably only as dilapidated as the engine on the crashed plane.

"The first three-stage low-pressure compressor is good, and I'm afraid that the broken blade should be the first-stage high-pressure compressor blade, and it seems that it should not be a design problem. The turbojet 7B model has not been modified with an overcompressor. Director Bai let out a long sigh of relief after seeing the situation.

After listening to the preliminary fault judgment, Chief Engineer Yu also calmed down, and said happily, "As long as it's not a design problem, it's fine." If it's a design problem, then we're going to have to use the old engine. ”

The test pilot came from behind, crouched down and touched the wreckage of the engine, and stood up again.

"Let me tell you about the situation, two minutes before the plane accident, I did a roll, and then I did a big elevation climb. Then it was changed to level flight, and when the whole test flight was about to be completed, I felt a shudder in the rear fuselage, and then an explosion. ”

Silence for a few seconds, "Did you burn with afterburner?" How many Mach does it fly up to? Director Bai asked a crucial question.

The test pilot didn't think about it and immediately replied, "This is not true, today is the first test flight of this aircraft, and there is no supersonic test flight subject." The highest flew to Mach 0.87. ”

Hearing this, Yang Hui seemed to understand something, and immediately asked: "In other words, this plane has not been tested before, right?" ”

"Hmm!" The test pilot didn't know what Yang Hui meant by asking. However, the answer is still yes that there is no test flight.

"I think the cause of this engine problem is coming out, and it is very likely that the compressor blades are not qualified." The people next to the engine all looked at Yang Hui.

After hearing this, the young man surnamed Liu in the tunic who came with him walked over, "You have to say that the blades of our Liyang factory are unqualified?" Is it our responsibility this time? ”

I don't understand why Liu Zhongzhu's suit reacted so much, but Yang Hui replied affirmatively,

"Yes, I personally think that's the reason, after all, before the test flight, it was only a ground engine test, and there is no comparison with the air environment, and this time the problem came out in the air."

"What's the matter, it's all about the problem of intake qi and doing work. Speaking of which, the ground is probably worse because of the debris! ”

As soon as these words came out, the people in the entire workshop lowered their heads, and it was a shame to be in a workshop with such a person.

Yang Hui didn't know how to refute this god-like argument for a while, and he didn't know how to say it for a while. The atmosphere is frozen.

"Haha, I can't tell! Tell you not to talk nonsense and talk nonsense in the future. Young people, don't think about being in the limelight in front of experts. Liu Zhongshan continued to teach, and it seemed that he was very expert.

"Liu Pengzhan, you get out for me, get out immediately." A deep male voice came, and the ears were a little tinnitus, and it seemed that he was quite angry.

"Dad, why? I didn't do anything wrong! ”

It turned out that the factory director of Liyang came, and I am afraid that he was also angry with such a son, and the whole person trembled a little.

"Get out, now I am the director of the Liyang factory, and I don't have your son. Get out. ”

Now Liu Pengzhan knew that it was amazing, and hurriedly lowered his head and trotted out of the hangar.

Director Bai hurriedly walked over and patted Director Liu's back, "Don't worry, don't worry, this kid is not sensible, don't take it to heart, everyone doesn't take it seriously." ”

A twenty-four-five-year-old person is said to be a child, and I am afraid that it will only be here.

"Hey, no matter what he keeps talking about, it's about engine problems!" Director Liu also regained his breath and immediately proposed to continue to study the engine problem and divert the attention of the hangar.

Slowly walked to the engine wreckage and crouched down, flipped the compressor, and looked closely.

"It is indeed a problem with the compressor blades, and the engine that has just left the factory cannot reach the range of fatigue breakage."

After thinking about it, he put a piece of blade wreckage in his hand on the operating table, and said to the person in charge of the base arrangement

"We don't know if it's an accident or a process problem. We need to check all of this type of engine. If you check all the engines in our factory and here, you can calculate it. Director Liu put forward his suggestion and waited for the decision from above.