"Before the engine stopped, we felt a sharp bump, which is not the same as the bump of the helicopter blown by the wind outside. So, my personal judgment is that there is a surge. Only in this case can the sudden shutdown of the engine be explained......"

Liu Yijiu pointed to the damaged part of the compressor and introduced it to everyone.

Air flow, air pressure and speed will change suddenly, and even air backflow will cause a sudden change in engine output, of course, this is caused by the change of air flow into the engine. When the air is flowing backwards and there is no airflow into the engine, it is strange that the engine does not stop.

Last time, because of the problem of screws, the power of the whole aircraft was insufficient, so that the plane just flew and fell, Liu Yijiu personally checked all the screws, and asked Zhao Maoping, director of the second district, to personally grasp the production quality of the materials and provide a detailed material report of the materials.

At that time, Liu Yijiu was afraid of encountering the phenomenon of surge. But I didn't expect that I would encounter it during the extreme test of this plateau.

"Director Liu, can we only replace this with a new one or repair it?"

"If you have a backup, replace it with a new one. Then give it a try, if there is no problem, fly back to our temporary base, only when we go back to our base, can we test the engine, there is no way to test it here......"

In such cases, a complete report of the damage to the engine must be made.

There were a lot of technicians who came here with me, and it didn't take a few hours. The compressor was replaced.

If something goes wrong with the engine, it's not that easy.

Under the suspicious operation of Huang Pingyang, the two engines of his mount were running normally. Inside the cab of a helicopter. Through the bulletproof glass, he gave Liu Yijiu a thumbs up. He really didn't expect that Liu Yijiu would solve the problem so easily.

The others also didn't expect the problem to be solved so easily, until the helicopter flew steadily into the temporary base, and everyone did not react.

Such a small problem almost turned this helicopter worth 10 million dollars into a pile of scrap metal!

Although, it's worth 10 million dollars if it has to be sold. The actual production cost is only 10 million RMB.

"The effect of this plateau limit test is very good. Even if it is not considered for weapons use, it may be possible to obtain an order for a part of the transport helicopter from the military. On the Tibetan Plateau. Such helicopters will be the most convenient means of transportation, whether it is for rescue or material transportation or border patrol. The comrades of the test pilots performed very well, and our technicians and other personnel performed even better. But, here I am. Again, I would like to emphasize to everyone. Human life is always worth more than equipment. Without waiting to return to the Daba Mountain base, Liu Yijiu didn't even wait to rest, and began to convene a meeting of all the people who participated in the test.

First affirm everyone's achievements, and then talk about problems.

"If nothing else, let's just say that compared to a helicopter, or according to everyone's understanding, those equipment worth millions should be protected, and human life is not valuable. Everyone's salary for a year. The highest sitting is only three or five thousand yuan, and I have worked for several lifetimes. You can't make enough money for a helicopter, do you? Liu Yijiu's question, although no one answered, he took it for granted from everyone's faces.

He only had a wry smile in his heart.

This is also something that the country is poor and has no way to do!

In any economic powerhouse, such a thing would not have happened at all. If it weren't for the presence of Liu Yijiu, it is very likely that these guys would have been thrown down along with the helicopter......

This happened only in the Soviet Union and in China.

The same was true in the Soviet Union,

"A helicopter is tens of millions, that is, several pieces of equipment, all of which are millions. You think it's worth it to trade your lives for these equipment, right? Liu Yijiu looked at the people who took it for granted, but a feeling of powerlessness also rose in his heart.

"It's not wrong to think like that. However, I hope you can think about how much time, how much energy, how much money, and how much money the country has spent on cultivating you, and your value cannot be measured by money! If nothing else, let's talk about Huang Pingyang, how many special pilots are there in domestic helicopter pilots? And the test flight has been Z-5, Z-7, and now Z-91, this morning, if he is replaced by a person, replaced by his apprentice, can he do it to such an extent? Thousands of hours of flight, and a very thorough understanding of the performance structure of domestic helicopters......"

Liu Yijiu hopes to change this thinking of these people.

In the 21st century, the competition is talent.

At the beginning of the 21st century, the republic suffered because of the talent gap.

In the end, what was put into it and what it cost was far more than these people imagined.

"Once he has a problem, spend another 10 million to be able to train a special pilot like him? Without him, if something goes wrong today, the planes are lost, and the people are lost. In the end, we have to start the whole project again......" Liu Yijiu said here, and couldn't help but accentuate his tone. "So, when you come down, I want you to think about what exactly is worthwhile. How is it cost-effective. It's not that we're afraid of death, it's that our death is worth it. Our Ninth Courtyard is not another unit, and once there is a problem with the equipment, it will deal with people. If even the helicopter with the man falls today, in the end, the chance of us even finding the fault is very slim, can these planes be exported? Can it be delivered to the troops? ”

Hearing Liu Yijiu's words, Liao Zhuojing understood why he was so angry.

In other places, in such a situation, in such a result, they should be meritorious.

But in the Ninth Courtyard, they can only be punished.

However, for this punishment, Liao Zhuojing feels that it is worth it.

Who wants to see problems arise for people who are engaged in national defense science and technology work? But if there is no problem, there is no way to prevent it. There are some things that can not be prevented with care. If nothing goes wrong, you never know what will happen.

Just like today's accidents, before every flight, they are carefully examined.

If you don't drop a few planes, you can't test the extreme flight environment at all.

"Director Liu, this time it's our fault, let's do a deep review! But now that our altitude tests have been completed, what's next? "It's impossible to make a complete summary here as in the base, and everyone doesn't have a perfect idea of how to carry out the next step.

"Delivered to Nipudosan, the tests of weapons and equipment, too, are almost over. It's just that the bomb flies at full load on it, and that's the next step. These helicopters were delivered to Nipudosan, and they don't have a plateau environment there, and the altitude of the mountain peaks is not high enough...... "Liu Yijiu did not ask these helicopters to continue to stay on the plateau for testing.

The five had to be transported to Nipudosan, fully armed.

The relationship between Nipudosang and the Vietnamese has now completely broken down, and the siege of Sihanoukville is simply impossible without air power, relying on the incomplete air defense units and those carrying the Houyi anti-aircraft missiles that are not long enough and do not shoot high enough.

At least, helicopters, which are also capable of striking the ground from the air.

In particular, Nipudosan lacks the ability to take C801 missiles to the sea to strike the warships of the Monkey 171 fleet.

The Z-91 is more than capable of doing such a job.

"We took the military plane directly back to the base first, brought back the engine of the No. 03 plane and the compressor at the beginning, and gave priority to testing and analyzing the cause of the failure." That evening, after the technical summary meeting, Liu Yijiu said to the other pilots and escorts.

Once back at base, the helicopters had to be inspected before they were ready to be transported by rail and then transported by sea to Nipudosan.

"How's it going? Extreme testing isn't fun, right? "From the Qinghai-Tibet Plateau to the Daba Mountain base, if you take the railway, even if the railway is dispatched and kept passing, it will take several days to arrive. Those helicopters, for the sake of secrecy, had to dismantle the rotors and cover the outside with a thick layer of plastic sheeting before they were transported.

Wang Shunyi knows that the altitude limit test is not an easy task.

Moreover, it is not possible to complete it in a short period of time.

"We've got the test data on that, and it's much better than what we designed. If the military procures, even the current model will be able to be used on the plateau. However, our engine power still needs to be increased! Liu Yijiu said with a smile.

"So, the Z-91 can already be finalized?" Wang Shunyi was also happy.

This is another big project completed by the base after the Longwei tank.

"No, I think we still have to be like Long Wei, wait until we look at the performance on the battlefield, not completely finalized, and then modify it according to the battlefield performance. The military is not currently going to carry out equipment on a large scale, and even plans for small-scale equipment are absent. So, there's no need to rush to set the ......," Liu Yijiu shook his head firmly.

He didn't want to be stereotyped at this time.

In the absence of an order from Iran, he preferred to give Nipudosan.

Because Nipudosan has a war, these helicopters can be put to the test of war.

It is impossible to design any weaponry and equipment and it can be completely finalized without going through actual combat. Even, a lot of weapons and equipment can be improved a lot just in the process of constant use in peacetime.

Any military exercise is not a real war, and no matter how close it is to actual combat, it is not a real war. (To be continued.) )