[Please keep in mind the domain name of this site " ", or search in Baidu: Sanlian Literature Network] When Fan Wuxian heard that there was a problem with the rocket, he suddenly felt more entangled in his heart.

This incident reminded him of what he had learned before he was reborn about the fact that when Chang Ershu launched the Austar, there was indeed something wrong. At that time, when the Aoxing was launched and ignited, one of the engines of the first-stage rocket body inexplicably shut down after working for a few seconds, causing the rocket thrust to be abnormal. According to video footage from the scene, the rocket bounced slightly upwards after ignition. Later inspection showed that one of the support legs of the rocket was offset, and the rocket was almost overturned.

After the accident, after nearly a month of inspection and analysis, the rocket engineering and technical personnel confirmed that the cause of the failure was that after the ignition of the booster engine, the electric squib of the off-flow valve of the oxidizer subsystem of the first and third booster engines was accidentally exploded, which caused the first and third booster engines to shut down. The accidental explosion of the electric squib is due to a trace amount of aluminum excess on one of the control contacts of the program distributor in the ignition control circuit. If it were not for the timely braking of the rocket's safety and security system, the launch vehicle would have taken off in a few seconds, and the consequences would have been unimaginable.

There are only a handful of countries in the world that can launch satellites with rockets, and each country has its own braking tricks, generally speaking, there are no more than two kinds, one is program control, and the other is grasping. The principle of program control is that it takes a certain amount of time for the engine on all rockets to reach the rated take-off thrust from ignition, and if it reaches a certain time, and the rocket does not take off, it proves that the rocket thrust is abnormal. As a result, one can set a delay in the program to shut down all engines immediately if the rocket has not yet lifted off. The principle of the grasping style is to use some giant mechanical claws to catch the rocket to be launched. Ignition is then carried out, and when abnormal thrust of the rocket is detected, all engines can be shut down calmly.

The difficulty in using the program control type is that the delay in the program is not easy to determine, and the rocket may capsize due to the moment action generated by the unbalanced thrust between its engines in the time delay. The use of the gripping type, although the disadvantages of the program control type can be avoided, but the synchronization problem between the mechanical claws will also bring trouble when the rocket is launched.

For example, when all the other claws are released, but only one claw fails to move. Then the inclination of the rocket will immediately change, which will seriously lead to the explosion of the rocket body.

The first Austar launch was a failure. However, the Star Arrow was not damaged, which can be said to be a great luck, but after later testing, it was found that the first-stage rocket had been ignited, causing the rocket body to be burned, and the company had to rebuild another long two bundle of rockets, and it took nearly half a year to complete the launch mission.

And the launch process of the second Australian star is even more strange. The Long 2 rocket successfully launched the second Australian satellite into orbit, but the satellite did not send any signal back. Later investigations showed that the large-capacity satellite built by the Americans exploded less than a minute after the rocket took off, and what was put into orbit was only the remnants left after the explosion.

At that time, many people were speculating that it was very likely that the Americans single-handedly planned this defeat and put bombs on the satellite. The purpose is to organize the Chinese, who have made great progress in rocket launch technology, to enter the international commercial satellite launch market, and for this they do not hesitate to lose hundreds of millions of dollars worth of satellites.

Although it sounds a little incredible, Fan Wuxian can't help but prevent this situation, he is responsible for his three satellites, so while eliminating various hidden dangers of the rocket itself, he also needs to remind the relevant parties. We must beware of the Americans' petty tricks.

If a satellite is determined to be blown up before it is manufactured, then Fan Wuxian has reason to believe that the Americans will definitely not implement all the functions on it, that is, a satellite may just be an empty shelf, which may not be able to achieve the proper communication function, and the substitute is a bomb that explodes after being triggered.

There is no problem with the design of the long two bundle rockets themselves, and judging from Fan Wuxi's memory, several failures are not flaws in the rocket itself. One is the impact of debris falling on key areas. One time there was a problem with the launch platform, so. How to remind the base to carry out screening and key parts of the investigation is the top priority.

At this time, there was a lot of hype in the small conference room, and the generals and senior engineers were all discussing the problem of the rocket malfunctioning, but the news that the No. 1 chief had come to inspect was no longer mentioned.

After listening quietly to the arguing for ten minutes, the admiral gently knocked on the table to stop the chaotic crowd, and then said very carefully, "Everyone, please be quiet. ”

It took a long time for everyone who was still arguing to calm down, but judging from everyone's faces, everyone's mood was very uneasy, after all, before the launch, such news suddenly came out, and the impact was very great.

The admiral carefully asked, "Is a level anomaly an occasional phenomenon or a sign of a major hidden danger?" This has to be clarified. Also, in this way, can the rocket be launched on time? What is the risk factor if it is forcibly launched? ”

The chief engineer in charge of the rocket project immediately became the focus of everyone's eyes, and he was also a little waxy at this time, but he himself was the one who knew the most comprehensive about the rocket, and he immediately said after thinking for a while, "I have also been inspected many times before, all of which are like this, and I estimate that this phenomenon is mostly occasional, you must know that the sensitivity of rocket components is very high, or the influence of temperature changes and wind direction, and even the electric sparks generated when the engine of a nearby car is ignited, will have a certain impact on it." , and there is feedback, so as long as the quality of the rocket itself can be guaranteed, an anomaly in a level does not mean anything. ”

The chief engineer's words are in favor of the launch on time.

However, the general, who is the commander of the base and the interim commander-in-chief, cannot but take into account various factors, what if something happens?

After all, the long two-bundle rocket has a criminal record.

Before that. In the rocket-to-ground test stage, there was a failure, and this time it was about to be loaded into the satellite, but there must be no mistakes.

"The satellite will be loaded in the morning for final debugging, and it will be launched in the evening, leaving us with only two days and nights to troubleshoot. Will you be able to make it in time? The base commander asked.

"Hurry up and rush to work overnight. It should be able to be done. The chief engineer replied after a moment's thought.

"Well, we will immediately carry out an emergency investigation, and if no fault is found before the satellite is loaded the day after tomorrow, then the launch will be carried out according to the original plan." Finally, the base commander gritted his teeth and decided.

Everyone unified their thoughts, broke down their tasks, and were about to leave the conference room. When the mobilization was carried out in a hurry, Fan Wuxian spoke, "Everyone, please wait a moment, I will say a few words." ”

Everybody thinks it's a little weird, launching satellites, which is a matter of our base, debugging satellites. It's a matter of Hughes, you Fan Wuxian is certainly rich, but you are a nouveau riche, even if the launch is unsuccessful, there are insurance companies to carry it for you, and you can't lose any money. What's the matter with you in this place?

Besides, you little hairy child, do you also know rocket launch technology?

As soon as Fan Wuxian stood up, he saw the meaning in everyone's eyes, so he raised his hand very shamefully and said, "I know, you must all think that I am just a little hairy child, I don't understand rocket technology, and I don't have the right to speak, right?" ”

Although the atmosphere was very tense, everyone heard Fan Wuxian say what everyone wanted. I still feel a little bit of a lot. This guy is also very interesting, but I don't know what he has to say?

The admiral was also amused by Fan Wuxi. He said with a smile, "Comrade Xiao Fan is a buyer, so he naturally has the right to express his opinions. ”

A minute or two? Fan Wuxian thought to himself, anyway, I can solve the problem in just a few words, one or two minutes is enough, so he nodded and said to everyone, "You don't have to discriminate against children, although I am young, I also created a large foundation from scratch, otherwise it would be impossible to buy three satellites at once." After all, although I can't pinch and calculate, I still have some ability. ”

"Comrade Xiao Fan, there is no need to preach idealism, we don't have much time." The base commander looked at his watch.

"Okay, okay-" Fan Wuxian said to make a long story short, "I also know a little bit about design, this time, the problem should be the control circuit of the rocket ignition, you can focus on this place to see what affects the ground." ”

One engineer immediately retorted, "The ignition control circuit is where we focus on testing, everything is normal, and there is no possibility of any failure." ”

Fan Wuxian glared at him angrily, and said with some hatred, "Then naturally it's not the problem of the control circuit itself!" But have you ever done an on-the-spot investigation?! Opened the deck to see the circuit?! ”

"Nope." The engineer shook his head, it was all checked through instruments and equipment, and the rocket that has been assembled, who will take it apart and see inside? Isn't that crazy?

Comrade Xiao Fan is a layman for this! The admiral thought to himself, he had been in the base for a long time, and he always knew some operating procedures, unlike him who was just a guest.

But before the admiral could speak, Fan Wuxian shook his head and sighed, "Then open it and take a look, you will definitely find some foreign objects on the contacts of the circuit board and other things, such as the tiny aluminum wire unscrewed off the screws, if there are more, I won't say more." ”

Fan Wuxian probably already has a spectrum in his heart at this time, this rocket must be the one that was stopped in an emergency before launch, so the problem is naturally the same as the original, but the time is urgent, and he doesn't have time to play those twists and turns with them, only to point it out in person, if they still insist on going their own way, then they have nothing to say, anyway, the loss is not themselves!

"Is it possible that this situation mentioned by Comrade Xiao Fan will happen?" The base commander asked the chief engineer.

The chief engineer was stunned for a moment, thought about the structure of the ignition control circuit, and then replied thoughtfully, "If there is really a little metal foreign matter falling on the contacts of the control circuit, it will indeed cause abnormal levels." But this is the case. It shouldn't happen, right? Even if it is a screw, it is selected by thousands of people, how can there be aluminum wire that is unscrewed? ”

"Since there is such a possibility, then go for the worst." At the critical moment, the admiral spoke, "There are some things that we have not done. It's because I didn't think of it. But what we think of, we must do. If it's really because of a little bit of aluminum wire. Affecting the launch of rockets, this lesson is too painful! ”

Fan Wuxian then said, "In fact, details determine success or failure. ”

Of course, Fan Wuxi's words are not good-natured, but really honest.

Many times in the history of the world's aerospace industry have basically been caused by mistakes in some details.

For example, in 1961. Bondarenko, the first cosmonaut of the Soviet Union, was trained intensely in a cabin filled with pure oxygen, and during a break, he wiped the part of his body that had fixed the sensor with an alcohol cotton ball, and then threw it onto an electrode plate, as a result, a fire broke out in the cabin, he was severely burned, and died ten hours later, becoming the first astronaut to die in a human manned space flight.

1974. The United States launched the British Skynet satellite with a Delta rocket, and the launch failed due to a short circuit due to a small piece of insulation peeling off near a small solder joint on a printed circuit board in the rocket's electronics. In 1980, during the second test flight of the Ariane rocket, a staff member accidentally knocked off a part of the logo. Clogged the nozzles of the combustion chamber of the engine, causing the launch to fail. In 1985, when the United States launched a Trident missile, the engine exploded due to the peeling off of the insulation layer of a soybean in the combustion chamber, as a result of which the high-temperature flames burned through the metal wall there, and the gas was sprayed outward, and the engine exploded. In 1990, when the Ariane rocket was launched for the 36th time, a staff member accidentally left a wiping cloth in the water circulation system of the first-stage engine, blocking the pipes. Caused a rocket to explode.

All kinds of lessons are learned. What affects the course of the aerospace industry is often a matter of detail. It's not that the level of the designers or the manufacturing plant itself is not enough.

"Okay, let's check the control circuitry right away." When the chief engineer saw that the admiral also expressed his position, he immediately agreed.

So everyone dispersed, and several generals stayed behind to discuss how to explain to the above about the rocket failure, after all, this time the No. 1 chief was going to come to inspect, and now this kind of problem happened, and everyone had a headache.

"My opinion is to report the situation first. Otherwise, when the chief comes, how will he explain? One general suggested.

In fact, the commander of the base also felt a very headache with the general, everything was fine before, who knew that it was about to be launched, but this kind of problem occurred, which really made people not know what to do.

"The report must be reported, but my opinion is that it is best to find out the cause of the failure first, this situation has been implemented, eliminated, and the above is more assured and satisfied, otherwise, our work is not in place!" Finally, the admiral clapped his head.

"Don't worry, we'll be able to find out the cause of the failure." Fan Wuxian comforted them, but in his heart he was thinking, if you are willing to listen to my opinion, at least you don't need to be busy.

But fortunately, Fan Wuxi's opinion was implemented, because we did not have any clear screening goals, since some people said that there might be a problem with the control circuit, and pointed out the suspicion of metal residue interference, they naturally had to start from here first, and the result was that half an hour after the opening of the cabin, the staff found this 0.15 mm thick aluminum wire on a contact of the ignition control circuit, and after identification, it was indeed dropped from a screw!

At this time, the people in the small conference room had not dispersed, and they were supposed to invite the people of Hughes Company to have a working meal in the evening, and the restaurant had already been prepared, but the people here were not in the mood to eat.

Suddenly, the door opened, and an engineer ran in out of breath, standing in the middle of the room speechless with excitement.

"Take a sip and talk slowly, what's wrong?" Everyone was nervous about his appearance.

The engineer was also present at the meeting, and when he turned his eyes and saw Fan Wuxian, he immediately rushed forward, grabbed his hand and said, "Master! Guru! ”

Looking at the engineer's serious look, Fan Wuxian was suddenly embarrassed.

Uh, big guys, I really don't know what to say. In fact, many big people have voted for more than one monthly pass for the little wolf. But at the end of every month, the mood is very entangled, and the little wolf has to be cheeky and shout again, begging for a monthly pass! **************！ ~！ [To quickly find this site, please search in Baidu: Sanlian Literature Network]