Chapter 12 Master Tiekou Shenduan Fan "Ask for a Monthly Ticket"

When Fan Wubing first heard that there was a problem with the rocket, he felt rather tangled in his heart.

This incident reminded him of what he had learned before his rebirth, when Chang Erbundle launched the Austronix, there were indeed some problems. At that time, when the Aoxing was launched and ignited, an engine of the first-stage rocket body inexplicably shut itself down after working for a few seconds, resulting in abnormal thrust of the rocket. According to live video, the rocket bounced slightly upwards after ignition. Later inspections showed that one of the supporting legs of the rocket was offset, and the rocket would fall just a little bit.

After the accident, after nearly a month of inspection and analysis by rocket engineers and technicians, it was confirmed that the cause of the failure was that after the booster engines were ignited, the electric squibs of the shut-off valves of the oxidant subsystems of the first and third booster engines accidentally exploded, causing the first and third The booster engine shuts down. The accidental detonation of the electric squib is due to a small amount of aluminum excess on a control contact of the program distributor in the ignition control circuit. If it weren't for the rocket's safety system to brake in time, the launch vehicle would take off in a few seconds, and the consequences would be disastrous.

There are only a handful of countries in the world that can use rockets to launch satellites, and each country has its own braking tricks. Generally speaking, there are no more than two types, one is program-controlled, and the other is gripping. The principle of the program control type is roughly that it takes a certain amount of time for the engines on all rockets to reach the rated takeoff thrust from ignition. If the rocket does not take off after a certain period of time, it proves that the thrust of the rocket is abnormal. Therefore, people can set a delay in the program, and if the rocket has not lifted off after the delay, all engines will be turned off immediately. The principle of the catch type is to use some giant mechanical claws to grab the rocket to be launched, and then ignite it. When it detects that the thrust of the rocket is abnormal, all the engines can be shut down calmly.

The difficulty of adopting the program control formula is that the time delay in the program is not easy to determine, and the rocket just may overturn during the time delay because of the torque effect produced by the unbalanced thrust between its engines. The use of the grasping type can avoid the disadvantages of the program control type, but the synchronization problem between the mechanical claws will also cause trouble when the rocket is launched.

For example, when other grippers are released. However, if only one mechanical claw does not move due to a malfunction, the rocket's inclination will change immediately, and in severe cases, the rocket body will explode.

Although the first Austellite launch failed, the starship was not damaged, which can be said to be a great luck. However, after subsequent inspections, it was found that the first-stage rocket had been ignited, causing the rocket body to be burned. The company had to rebuild another long two-trunk rocket. The launch mission was completed nearly half a year later.

The launch process of the second Ausat was even more weird. The second bundle of rockets successfully sent the second Ausat into orbit, but the satellite did not send back any signal. Subsequent investigations showed that. This large-capacity satellite manufactured by the Americans exploded less than a minute after the rocket was lifted into the sky, and two long bundles were sent into orbit, which were only the remnants left after the explosion.

At that time, many people were speculating that it was very likely that the Americans planned this failure and added bombs to the satellites. The purpose was to prevent the Chinese who had made great progress in rocket launch technology from entering the international commercial satellite launch market. For this reason, they did not hesitate to lose satellites worth hundreds of millions of dollars.

Although it sounds unbelievable. But Fan Wubing had to guard against this situation. He was responsible for his three satellites. Therefore, while eliminating various hidden dangers of the rocket itself, he also needed to remind relevant parties to beware of American tricks.

If a satellite is determined to be blown up before it is manufactured, then Fan Wubing has reason to believe it. Americans will certainly not implement all functions on it.

In other words, a certain satellite may be just an empty shelf. It may not be able to realize the proper communication function inside, and the substitute is a bomb that explodes after being triggered.

There is no problem with the design of the long two bundles of rockets. From Fan Wubing's memory, the failures were not due to the flaws of the rocket itself. Therefore, how to remind the base to carry out screening and screening of key parts is the top priority.

At this time, the small conference room was already hyped up. The generals and senior engineers were all discussing the problem of the failure of the rocket. On the contrary, no one mentioned the news that the No. 1 chief came to inspect. .

The admiral listened quietly to the crowd arguing for ten minutes, then lightly knocked on the table to stop the chaotic crowd, and then said very carefully, "Everyone, please be quiet."

It took a long time for the people who were still arguing to calm down, but judging from the faces of everyone, everyone was very upset. After all, before the launch, such news suddenly spread, and the impact was very great.

The admiral asked carefully, "Is a level abnormality an accidental phenomenon, or a sign of a major hidden danger? This matter must be clarified. And, in this way, can the rocket be launched on time? If it is forced to launch, How big is the risk factor?"

The chief engineer in charge of the rocket project immediately became the focus of everyone's eyes. At this time, he was a little embarrassed. However, he was the one who had the most comprehensive understanding of rockets. After thinking for a while, he immediately said, "Before After many inspections, this kind of situation has always occurred. I estimate that this phenomenon is mostly sporadic. You must know that the sensitivity of rocket components is very high, or the temperature changes and the influence of wind direction, or even the ignition of the engine of a nearby car. The electric sparks generated at the time will have a certain impact on it and give feedback, so as long as the quality of the rocket itself can be guaranteed, an abnormal level cannot explain any problem."

In the words of the chief engineer, it can be regarded as supporting the launch on time.

However, as the commander of the base and the general in charge of the interim commander, he had to consider various factors, what should he do if something happened?

After all, the long two bundles of rockets have a criminal record.

Before that, during the test stage of the rocket, there had been failures. This time, it was going to be loaded into the satellite, but there must be no mistakes.

"The satellite will be installed in the morning of the day after tomorrow, and the final debugging will be carried out, and it will be launched in the evening. The time left for us to troubleshoot the fault is only two days and nights. Can this time be made in time?" asked the commander of the base.

"Hurry up and rush to work overnight, it should be able to be completed." The chief engineer replied after thinking for a while.

"Well, we will conduct an emergency investigation immediately. If no fault is found before the satellite is loaded the day after tomorrow, then the launch will proceed as originally planned." Finally, the base commander gritted his teeth and decided.

Everyone unified their thinking. Break down the tasks. Just as he was about to leave the meeting room and rush to mobilize, Fan Wubing spoke. "Everyone, please wait a moment, let me say a few words."

Everyone thinks it's a bit strange. Launching satellites is a matter of our base, and debugging satellites is a matter of Hughes Corporation. Of course you, Fan Wubing, are rich. But if you are an upstart, even if the launch is unsuccessful, the insurance company will cover it for you, and you can't lose any money. What's wrong with you in this place?

Besides, you little kid, don't you know rocket launch technology?

Fan Wubing stood up. I saw the meaning in everyone's eyes. So he raised his hand and said, "I know. You must all think that I am just a kid who doesn't know rocket technology and has no right to speak, right?"

Although the atmosphere was very tense, everyone still felt a little overjoyed when they heard Fan Wubing utter the hearts of the people. They thought that this guy was really interesting, but they didn't know what he was going to say?

The general was also amused by Fan Wubing, he said with a smile, "Comrade Xiao Fan is the buyer, so he naturally has the right to express his opinion, just say it, no matter how anxious everyone is, it will take a minute or two."

A minute or two? Fan Wubing thought, anyway, I can solve the problem with 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 have created a new world from nothing. A large base, otherwise it would be impossible to buy three satellites at once. In the end, although I am not good at pinching and calculating, I still have some skills."

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

"Okay, okay--" Fan Wubing said shortly, "I also know a little bit about design, this time, the problem should be in the rocket ignition control circuit, you can focus on investigating this place, see See what affects things."

An engineer immediately retorted, "The ignition control circuit is the place we focus on testing. Everything is normal and there is no possibility of any failure."

Fan Wubing glared at him angrily, and said with a bit of hatred, "Of course it's not a problem with the control circuit itself! But have you checked it on the spot?! Opened the deck to see the circuit?!"

"No." The engineer shook his head. He checked the rocket through instruments and equipment. Who would disassemble the assembled rocket and look inside? Isn't that crazy!

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

But before the general could speak, Fan Wubing 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, for example, on the screws. If there are more things like the tiny aluminum wires that have been unscrewed, I won’t say more.”

Fan Wubing probably already had a plan in his heart at this time. This rocket must be the one that stopped in an emergency before launch, so the problem is naturally the same problem as before, but time is tight, and he has no time to play with them. Those twists and turns have been made, so I can only point it out in person. If they still insist on going their own way, then I have nothing to say. Anyway, I am not the one who loses!

"Is it possible for the situation that Comrade Xiao Fan said to happen?" The commander of the base 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 Then a little metal foreign object falling on the contact of the control circuit will indeed cause abnormal level. But this kind of situation should not happen, right? Even the screws are selected out of thousands of thousands, how can there be aluminum The thread is unscrewed?"

"Since there is such a possibility, let's go on a mission." At the critical moment, the general said, "There are some things. We didn't do it because we didn't think about it. But we must do what we thought of. If It is really because of a little aluminum wire that affects the launch of the rocket, this lesson is too painful!"

Fan Wubing continued to interject. "In fact, it's the details that make the difference."

Of course, what Fan Wubing said was not to be a good boy, but to be honest.

There have been many air crashes in the history of spaceflight in the world. Basically, it is caused by mistakes in some details.

for example. In 1961, Bondarenko, who was identified as the first Soviet astronaut to fly into space, was undergoing intense training in a cabin filled with pure oxygen, while resting. After wiping the part of his body where the sensor had been fixed with an alcohol cotton ball, he threw it on an electrode plate. As a result, a fire broke out in the cabin. He was severely burned and died ten hours later. An astronaut in distress.

In 1974, the United States used a Delta rocket to launch the British Skynet satellite. A small piece of insulation was peeled off near a small solder joint on a printed circuit board in the rocket electronics. Cause a short circuit and launch failure. In 1980, during the second test flight of the Ariane rocket, a staff member accidentally knocked off the trademark of a component, which blocked the nozzle of the engine combustion chamber, causing the launch to fail. In 1985, the United States launched the Trident missile. Because a piece of soybean insulation layer was peeled off in the engine combustion chamber. As a result, the high-temperature flame burned through the metal wall there, and the gas was ejected outward. The engine exploded. In 1990, during the thirty-sixth launch of the Ariane rocket, a staff member accidentally left a cleaning cloth in the water circulation system of the first-stage engine, which blocked the pipe and caused the rocket to explode.

All kinds of experience and lessons show that it is often some details that affect the progress of the aerospace industry, rather than the insufficient level of designers or manufacturing plants.

"Okay, let's check the control circuit immediately." Seeing that the general had expressed his opinion, the chief engineer immediately agreed.

So everyone scattered like birds and beasts, and several generals stayed behind to discuss how to explain to the superiors about the rocket failure. After all, this time the No. 1 chief is coming to inspect, and now this kind of problem has caused everyone a headache.

"My opinion is to report this situation first. Otherwise, how can I explain it when the chief comes?" A general suggested.

In fact, the commander of the base and the general also felt very headache. Everything was fine before, but who knew that the launch was about to happen, but this kind of problem happened. It really made people wonder 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. If this situation is implemented and eliminated, the higher-ups will be more at ease and satisfied. Otherwise, our work has not been done properly!" Finally, the admiral made the final decision.

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

But fortunately, Fan Wubing's opinion was implemented, because everyone did not have any clear screening targets. Since some people said that there may be problems with the control circuit, and pointed out the suspicious point of interference from metal residues, they naturally had to start with After checking here, it turned out that half an hour after opening the cabin, the staff found this 0.15mm thick aluminum wire on a contact of the ignition control circuit. After identification, it was indeed from a screw. It fell!

At this time, the people in the small conference room were still there. It was said that the people from Hughes Company would be entertained for a working meal in the evening. The dining room had already been prepared, but the people here were not in the mood to eat.

Suddenly the door was opened, and an engineer ran in panting, standing in the middle of the room, too excited to speak.

"Drink some water and speak slowly, what's the matter?" Everyone was quite nervous by his appearance.

The engineer was also present at the meeting. He turned his eyes, saw Fan Wubing, rushed up immediately, grabbed his hand and said, "Master! Master!"

Seeing the serious look of the engineer, Fan Wubing stopped immediately.

Uh guys, I really don't know what to say. In fact, many seniors have voted more than one monthly ticket for Little Wolf. But every month at the end of the month, the mood is very tangled, and Xiao Lang has the cheek to shout again, asking for a monthly ticket!