Great Power Fighting Falcon

After the specially arranged alert patrol ended, the pilots who participated in the training today immediately conducted ship landing training. The advantage of the large amount of fuel inside the J-15 is highlighted. Under normal fuel conditions, it can continue training for two or three hours. Sometimes, because of its long endurance, it often only carries half of the fuel to reduce weight.

A solid afternoon of training ended. As usual, it was time to analyze flying parameters and summarize experience. After that, it was time for dinner. After dinner and watching the news broadcast, Niu Yaoyang came over and stood waiting at the door of the officer's club video room. Li Zhan came out and talked with him in the corridor outside.

Niu Yaoyang reported, "Boss, there is something wrong with the plane. I'm not sure about the specific cause. You'd better go over and have a look."

"Is it a five-hole unit?" Li Zhan asked with a frown.

"Yes."

Li Zhan quickly went to the maintenance hangar with Niu Yaoyang. Fighter No. 501 will fly for about ten hours tomorrow, so the maintenance department will conduct a comprehensive inspection on it tonight to ensure the safety of tomorrow's flight. Because two-seat aircraft are still not enough, the existing two-seat aircraft are used very intensively, especially the No. 501. This fighter has to fly at night and land on ships at night, and its usage intensity is almost twice that of other fighters.

The reason why Li Zhan directly asked about the flight control is because the two-seat aircraft, like the earliest batch of J-15s, is 100% original imitation. It has non-domestic avionics and non-domestic flight control, which are exactly the same as the J-11A. A large amount of use experience has proven that Su-27Sk and J-11A fighters must pay special attention to the status of the flight control system when used under high-intensity conditions.

So far, the only J-15 fleet of the Flying Shark Force is No. 533 used by Li Zhan and the two latest ones entering service are new batches, using a new domestic avionics system and a new full fly-by-wire flight control system.

The rest of the fighters are still the same, so the pressure on maintenance is relatively high.

The maintenance team led by Niu Yaoyang has been strengthened and is also responsible for the support work of No. 533 and No. 501. He has guaranteed the J-16 that has been tested in actual combat, and the J-15 that has not been fully finalized is the perfect counterpart.

When we arrived at the maintenance hangar, the avionics engineer was already there, operating the testing instruments with a frown on his face. The avionics engineer is not a junior cadre. He is a naval colonel who is almost fifty years old and is the deputy chief engineer responsible for technical support. Li Zhan quickly saluted and said hello, but the bespectacled avionics colonel waved his hand for him to come over and take a look.

"The test results are normal, but." The avionics colonel pointed to the curve. The content displayed on the screen was like the content measured by the hospital's vital signs detector, and said, "Pay attention to this short section of this line. It has ups and downs." The amplitude is very small, it looks like a normal straight line, and you will miss it if you don't pay attention. I have never encountered this situation."

Li Zhan looked at it carefully and asked, "Is the detector normal?"

Niu Yaoyang replied, "This is the third channel."

"It's the fourth one. I changed it to another one, and the feedback is the same." said the avionics colonel.

Li Zhan guessed that it was probably a symptom of the problem caused by the fighter's congenital defect, and asked, "Can it be found out?"

The avionics colonel said decisively, "No, we need someone from the manufacturer. We can't do such an investigation."

After pondering for a moment, Li Zhan said, "This aircraft can no longer be used until the problem is found. We must find out what the problem is. Contact the manufacturer and ask them to send someone."

"Yes." Niu Yaoyang nodded.

The avionics colonel frowned, pushed up his glasses, and said in a deep voice, "Vice President Li, I suggest that a comprehensive investigation be conducted on all two-seat aircraft and single-seat aircraft that use the same flight control system, focusing on the flight control system. .”

"Isn't it necessary?" Li Zhanyou said, "It would take ten and a half days to finish it. We don't have that much time."

It has already entered August, and there are only about fifty days left to complete the battle. The unavailability of more than half of the fighter planes directly declares that the troop boarding rate is unqualified. Such hindrance cannot occur under any circumstances.

Niu Yaoyang also holds the same opinion, "I have read the past maintenance records and a comprehensive inspection was conducted in the first half of the year. I think there is no need to conduct large-scale inspections."

Comprehensive testing is required, and frequent testing is not allowed.

The avionics colonel said worriedly, "That is a normal situation, but now is an abnormal period. Vice President Li, please calculate how many hours you fly every day. All fighters are used at high intensity. You cannot use normal eyes." Let’s take a look at it. I still insist on conducting a comprehensive inspection on the fighters of the same batch, and the manufacturer should form a team to find ways to shorten the time.”

"No matter how shortened it is, it will still take at least a week." Li Zhan shook his head slightly and pondered.

After a while, he made a decision and said, "This way, you try your best to find out, and at the same time contact the manufacturer and ask them to send someone over. Work overtime tonight to test all the fighters that will fly tomorrow."

"The fighter planes that will fly tomorrow have all completed their maintenance." Niu Yaoyang said.

Li Zhan pointed to the display screen of the detector and said, "Is this also the case?"

"No, this happened only in the fifth hole unit." Niu Yaoyang said.

Li Zhan breathed a sigh of relief, "That's good. Let's all work hard to find out the problem with the five holes."

The avionics colonel said, "I will find a way, but I still recommend that you consider my suggestions."

He is a technical cadre, and a high military rank represents a high technical level, but his administrative power is not as good as that of the deputy chief instructor. Li Zhan has the right to adjust the flight training plan and determine which fighters will participate in the training. If the fighters do not show obvious symptoms of problems, it is also up to him or the unit commander and chief instructor to decide whether to conduct advanced testing.

On the other hand, this kind of detection feedback of fighter No. 501 is unprecedented. It may be a problem or not. The avionics colonel has no way to determine, and there is no standard guidance. The judgment made based on experience and feeling is What cannot be written into the record cannot be used as a basis.

So he couldn't persist.

If it is just an error under certain circumstances caused by the link between the instrument and the fighter plane during the detection process, it will also be a big deal if it delays the combat training of the troops.

Li Zhan said to the avionics colonel, "I am very familiar with Flanker and have also encountered flight control failures. What I am sure of is that this extremely small difference is not a symptom of flight control system failure. You expand the scope Check the control program again, or there may be errors caused by other aspects."

"Okay, I will focus on checking the control procedures." The avionics colonel nodded slightly.

Li Zhan did not leave and followed the avionics colonel to conduct the following inspection work. He was able to win the admiration of all officers and soldiers not only because of his ability in pulling rods, but also because of his familiarity with fighter aircraft maintenance business. This is due to the fact that he has been working with the maintenance team to provide support since he was in the army. As long as he has the right tools, he can solve some common problems by himself for any fighter he has flown.

Even the deputy chief engineer could not identify the symptoms of a suspected problem. Of course, Li Zhan was not able to find out the cause. But it was not impossible. Li Zhan called the Second Division on the spot to look for a building. Hainan Airlines does not have Su-27SK. The ones with the most experience in using this type of fighter are the Second Division and the Three Hundred Division, and Lou Yiwang is a Dana-level mechanic of the Su-27SK model.

After explaining the situation, Li Zhan asked, "Lao Lou, this slight abnormality in the flight control system is actually a problem with other systems. Do you think there is such a possibility?"

Lou Yiwang said firmly, "No. Su Liangqi's flight control system is very complex. What I mean by complexity is not complex technology but complex design. Longitudinal fly-by-wire plus transverse mechanical transmission, longitudinal fly-by-wire is still a design that was added later. , resulting in a complex and bulky transmission system. It is precisely for this reason that Su Liangqi's transmission system is very independent. If there is an abnormality in this system, then the problem must be with itself, and feedback from other systems' problems will not be reflected in the flight control system. "

Li Zhan recalled the scene in which the flight control system failed before, his mind started spinning rapidly, and he nodded slowly, "I understand, so we can only find problems in the flight control system."

"Brother Yi, this is really hard to find. Let me tell you this, Shen Hoy still hasn't been able to fully figure it out. Is it because Shen Hoy's technical level is not good enough? No, it's because there is no way to solve this problem through reverse logic. To analyze, for example, the designer turned at a crossroads, and if you look back in the opposite direction, you have to face three directions, and it may take twenty or thirty years to eliminate one direction."

Lou Yiwang said in a deep voice, "I suggest asking the manufacturer to test it. Although they haven't figured out the whole situation, they are definitely better than the army. But I don't think there is any need to worry too much. The Second Division has been using Su Liangqi for how many years. Those batches of Su Liangqi are still in use, so they can still fly."

Li Zhan shook his head helplessly and said with a wry smile, "Didn't Shandong crash a UBK in the first half of the year? There was something wrong with the flight control system. We had already conducted a major inspection at that time, and everything was normal. Tonight this I’m really worried about minor abnormalities.”

After pondering for a while, Lou Yiwang suggested another possibility, "Drain all the oil and test it again."

"Aviation fuel?" Li Zhan said in surprise, "Is it related to aviation fuel?"

Lou Yiwang said, "I encountered a difficult disease once before. Even the experts from the manufacturer came and could not find out the problem. Later, I drained the oil out of consideration for safety issues. When I checked again, I found that the abnormality disappeared. . There is no problem with the aviation fuel, but the test results when there is aviation fuel are abnormal, and there is no problem with the fighter aircraft itself."

"I understand what you mean, can't you? This is incredible." Li Zhan shook his head.

Lou Yiwang said with a smile, "I was promoted because of my meritorious service in that matter. By the way, have you forgotten about the Dongsanguai landing gear?"

"I remember, you just need to hit the hammer a few times and it will be fine." Li Zhan said with a smile.

Lou Yiwang said, "Su Liangqi's flight control system technology is not complicated. It should be said that it is relatively simple and crude. At that time, Lao Maozi was restricted by conditions and rushed to equip the troops, so he directly cut half of the mechanical transmission and replaced it with telex. As a result, the whole device was very bulky, and we had to drill holes in the fuselage structure to reduce weight. In terms of avionics, they do not have such advanced technology, so if we think too much about them, it is easy to make detours."

"I understand. Your idea is very fresh. I'll give it a try right away. Okay, I won't bother you for now." Li Zhan said.

Lou Yiwang smiled and said, "It's okay. I have a lot of free time training new recruits during this period. If you need anything, call me anytime. I often spend time in the office."

"good."

Putting down the microphone, Li Zhan strode over and said to the avionics colonel, "I asked the veteran maintenance officer of the Second Division, and he provided an idea. An abnormality in the flight control system will not be a fault feedback from other systems. If there is really nothing else to do, To find out the problem from the flight control system, it is recommended that we drain the fuel and then test again."

"Put the fuel in?" The avionics colonel thought quickly for a while, then suddenly slapped his head, "Yes! Put the fuel in!"

After saying that, he left Li Zhan and quickly made arrangements, and then quickly checked the aircraft fuel status of other fighters during inspection. Li Zhan couldn't help anymore, and watched the avionics colonel get busy as if he had won a big prize.

The aviation oil in the wings and fuselage was quickly removed, and the avionics colonel conducted another test. The results were amazing. The tiny fluctuations in that small section disappeared!

Li Zhan was still thinking about the relationship between aviation fuel and the flight control system. The avionics colonel came over with a stack of maintenance orders in his hand. With a red face, he stood next to Li Zhan and pointed at the No. 501 fighter and said, "It's aviation fuel." The problem is, the aviation fuel itself is not a problem. If the aviation fuel in the wing tank exceeds a certain amount, there will be a problem. You see, when other fighter jets were tested, the wings had only a small amount or even no aviation fuel. The wing of No. 501 was almost full. oily."

After taking the maintenance sheet and looking through it, Li Zhan said, "Yes, there is indeed such a difference. But how can the presence of aviation oil on the wing affect the test results?"

The avionics colonel smiled and said two words, "Weight."

"Weight?" Li Zhan was stunned for a moment, and then suddenly realized, damn, that's it!

The avionics colonel said as if giving an award speech, "Yes, the weight caused the wings to sag, which affected the test results. There is nothing wrong with the fighter itself, but there is a problem with our test process. The J-15 has folding wings. The addition of the folding device originally resulted in a relatively heavier wing weight, and with the addition of two to three tons of aviation fuel, the state of the fighter aircraft did not meet the required state for inspection, which resulted in slight deviations."

He gave Li Zhan a thumbs up, "The veteran mechanics of the Second Division are very experienced."

"He is indeed very experienced and has protected Su for more than 70 years, and he was the first to discover this phenomenon." Li Zhan admired him and said sincerely.

Sometimes experience really matters more than technology. What you thought was a calculus question turned out to be one plus one equals two. If Li Zhan had not called Lou Yiwang, he would have had to ask the manufacturer to come according to normal procedures, and then the fighter planes would have been spent in the maintenance hangar for a comprehensive inspection. Not only would training be delayed, but more resources would have been spent. There is no guarantee that it will be successfully detected.

Maybe in the end, a highly skilled pilot will need to fly up to the sky for actual testing, and then land and the fuel consumption is almost the same, and then test again, yes, it is normal. The problem is solved, but what about the problem?

Why are so few sixth-term non-commissioned officers of such an age able to serve as soldiers in the army until retirement? Lou Yiwang had a high school diploma, so he was successfully promoted, otherwise he would have been a non-commissioned officer until the end.

The theoretical level of these people may not be outstanding, but their practical skills and experience are definitely at the top. There used to be an old marine engineer sergeant of the sixth period in the navy. There was a problem with the power system of a certain ship. The high-tech team with all kinds of advanced testing instruments was helpless. They invited him over. The old petty officer listened to it and told everyone directly what the problem was. There is something wrong somewhere, and at first glance, it is true.

That's how awesome it is.

There is also a sixth-term mechanic non-commissioned officer in the Army Aviation Force. How awesome is it? The helicopter manufacturer made improvements based on his technical papers and made more than a hundred improvements! That was a soldier who only had a junior high school diploma when he joined the army! At the end of his service life, in order to keep him, his army directly changed the system for him!

That's how awesome it is.

These people are the real kings of war.

PS: 48000/84000