Super Copy of Great Power Technology

At the same time, there was a problem with an ultrasonic sensor, which was probably affected by the high-temperature gas and caused a malfunction. These are all hidden problems of the Suzaku rocket. It is better to expose them now during the test than to have an accident happen suddenly when undertaking external satellite launch business.

Although Qiao Ruida knew the problem in advance, he did not point it out directly. Instead, he watched engineers such as Cao Yifei and Wu Ziqiang search the rocket's flight log step by step, find the problematic items, and identify the faulty parts and the incorrectly written control code. "Knowledge gained from books is shallow, and one must practice to know it thoroughly." Only by going through the troubleshooting process in person can you have a deep impression and not make the same mistake again when developing similar projects next time. The entire troubleshooting process lasted two hours, and it was finally locked on an ultrasonic sensor burned by high-temperature gas and a line of incorrectly written code.

Next, Qiao Ruida was anxious for everyone and held a meeting to conduct a comprehensive analysis of the cause of the accident. Finally, he concluded: "This is the situation. There are two fault points in total. One is a design defect. The high temperature protection of the ultrasonic sensor is not in place. The other is a human fault. When writing the flight control code, the judgment instruction all was written as or. I didn't expect such a low-level mistake. After several subsequent code reviews, no one found this simple error. It can be seen that everyone's attitude in daily work is not correct, at least not serious.

The 1500-meter recovery test this afternoon has been cancelled. We must not let the rocket go up with problems. In the afternoon, everyone should first re-protect the ultrasonic sensor of the No. rocket and re-write the flight control program. By the way, when I was inspecting the recovery yard just now, I found that when the rocket was launched, the high-temperature tail flame would damage the cement floor, causing cracks and powdering. In the afternoon, you should contact the construction team and ask them to scrape down a layer of cement floor near the rocket's take-off and landing points and lay high-temperature resistant steel plates.

In addition, a comprehensive defect inspection was conducted on the two first-stage rockets. All employees were divided into two groups. One group was responsible for inspecting the hardware, focusing on whether the protection of some sensors was in place. The other group was responsible for inspecting the flight control program, not missing a single line of code or a single instruction.

The meeting lasted until 12:30 noon, and Qiao Ruida let everyone go to eat. While eating in the cafeteria, Du Qingqing saw that Qiao Ruida's face was not very good, and couldn't help but persuade him: "Rui Da, the first-stage rocket ignition recovery test was successful this morning, why are you so sullen. And aren't you too harsh on your employees? It's just a small mistake, and it didn't cause any losses. It would be fine if you corrected it in time. Why are you harping on it?"

After listening to his girlfriend's advice, Qiao Ruida shook his head and said, "Qingqing, you are not a person engaged in aerospace work, so you don't understand how strict the pursuit of details is in the aerospace field. Let's put it this way, many domestic aerospace projects have zero tolerance for mistakes. No matter what your status is, no matter how many achievements you have made in the past, as long as there is a problem with the aerospace project you are responsible for, it will be investigated to the end. For a launch vehicle, no matter how many times this model of rocket has been successfully launched in succession, as long as there is a problem in one launch, everything will be reset to zero, starting from the basic material selection, and the design and manufacturing process of the rocket will be repeated until the problem is completely solved.

The reason why the requirements in the aerospace field are so stringent is very simple. The prices of various aerospace equipment are too high and they cannot afford to lose them. If a launch vehicle fails, the rocket and satellite will all be wasted, with a loss of at least 10 million yuan. If some high-precision satellite equipment, such as a space telescope, is lost, it will be difficult to build a second one in a short period of time. If a manned spacecraft has a problem, the loss is the life of the astronaut, and the value is simply immeasurable. "

"Okay, I took it for granted. Even so, you shouldn't be so hard on your body. Come on, eat this chicken drumstick."

After repeated persuasion from his girlfriend, Qiao Ruida reluctantly ate something and took a short rest. In the afternoon, Qiao Ruida returned to the rocket recovery site and took a group of his men to put down the first-stage rocket tested in the morning, disassembled it into parts on the ground, and inspected them one by one. It was surprising to find that in addition to the ultrasonic sensor, there were more than a dozen other parts that were burned by the high-temperature gas and suffered varying degrees of damage, but not as thorough as the ultrasonic sensor. This was a big problem, and the entire design of the launch vehicle might have to be redesigned.

Qiao Ruida also pulled out the design of Suzaku II in his mind and compared it with the design of the current Suzaku rocket. He found that the two drawings were not completely identical, but almost identical. This is interesting. The same rocket, the same structure, was successfully launched hundreds of times in the hands of Blue Arrow Aerospace, but it was in the hands of Ruida Aerospace. It just conducted a recovery test and had a lot of problems. This is very wrong. There must be a key problem that they overlooked.

Qiao Ruida pondered for a long time, and finally locked his suspicion on a polymer fireproof material commonly used on rockets. "Could it be that the high temperature resistance of this fireproof material is not up to standard, which caused a series of parts to burn? Candice, cut off some of the black fireproof material wrapped around these parts and send it to the laboratory for testing."

"Okay, Mr. Qiao, I'll take the sample and send it for testing." As a dimensional puppet, Candice obeyed the orders of his master, Qiao Ruida. He immediately found a pair of scissors, cut off a 20-centimeter square piece of the black polymer material wrapped around the component, put it in a sample bag, and hurriedly left the rocket recovery site and headed straight for the laboratory.

The so-called laboratory is just a simple warehouse built with color steel plates and profiles. It was originally owned by China Construction Fifth Engineering Bureau, but it has never been put into use. Since Qiao Ruida and his team came to the Aerospace City, they took a fancy to this warehouse and directly requisitioned it. Many instruments and equipment brought this time were moved in, and after some arrangements, it became a simple laboratory. Due to limited equipment and professionals, too complicated experiments cannot be carried out, but it is still no problem to conduct high temperature resistance tests on polymer fireproof materials.

Just over ten minutes later, Candice came back with a black mass in her hand and said, "Mr. Qiao, you really have a keen eye. This polymer fireproof material is indeed substandard. It only burned for a few seconds at a high temperature of 2000 degrees and turned into this."

The problem was found, but it was not so easy to solve it, because Qiao Ruida learned from the information in his mind that the high-temperature resistant material used on this rocket needs to withstand the high-temperature tail flame of 2500 degrees Celsius for more than 10 minutes, and can be reused to be qualified. Obviously, the performance of this fireproof material is too amazing, and it is impossible to purchase it domestically, and it is even hard to say whether there is such material abroad. Qiao Ruida had to take action again, using the gold finger to analyze the production method of this fireproof material, using phthalonitrile material and a special reinforced cloth, repeatedly stacking and infecting, hundreds of layers compressed together, to form a composite material, which can meet the requirements.

Qiao Ruida sent the method of making fireproof materials to Ruida Aerospace's production factory in the YQ area via a satellite phone, asking them to purchase raw materials as soon as possible and process a batch. At the same time, another team also completed the review of the rocket flight control program, and found a total of five bugs of varying sizes, one of which even existed in the original Suzaku-2 rocket. These program bugs are generally hidden deep, and it is difficult to find them without repeated review of the code and overall research. If the rocket flies normally, these bugs are also difficult to trigger, but once certain specific conditions are met and the bugs are triggered, the impact caused is very serious. At least one stage of the rocket will fail to be recovered, and millions of RMB will be wasted. The worst case may even cause the rocket to explode at the moment of ignition, and the rocket, satellite, and launch tower will be destroyed. After seeing the damage that these program bugs may cause, even Qiao Ruida, who has always been generous, was shocked and broke into a cold sweat. It seems that the technologies and products analyzed through the gold finger in the future must be repeatedly verified before they can be used, otherwise one day you will be pitted to death, and you don't know why.

The Yanqing factory moved quickly. After receiving a call from the boss, they purchased qualified raw materials that afternoon. Then all employees worked overtime for three hours to test the correct preparation method and produced enough fireproof materials for two launch vehicles. Together with more than a dozen other rocket spare parts, they were packed together and sent to Ruida Space City overnight.

On the morning of the next day, a small van arrived at Ruida Space City in a cloud of smoke and dust. After getting the fireproof materials and spare parts, the damaged parts of the Qiao Ruida No. 1 rocket were replaced, the high-temperature protection facilities were rebuilt, and then the entire first stage of the rocket was reassembled and erected again at the cross center position on the left side of the recovery platform. Of course, the flight control program in the rocket was updated yesterday afternoon. Now all the defects of the first stage of this rocket have been corrected and it can be ignited and taken off at any time for the second test. However, Qiao Ruida and his team did not conduct the test immediately. Instead, they laid down the first stage of another rocket, updated the flight control program, partially disassembled it, rebuilt the high-temperature protection facilities, and went through the installation and restoration process. At this point, the first stage of the two rockets has been fully maintained and can take off at any time for testing.

That afternoon, the two construction companies received another notice from Party A to clear the construction sites near the rocket recovery site, and this time the scope of the clearance was much larger, with at least half of the construction sites stopped working and the workers evacuated. The number of construction workers watching the rocket recovery test increased several times, but this time they were too far away from the rocket recovery site and could only watch the excitement and could not see any details.

At two o'clock in the afternoon, all the preparations for the rocket launch were completed. "10, 9, 8... 3, 2, 1, ignition!" As the ignition command was issued, the five Tianque engines ignited at the same time, spewing out hot tail flames, making a loud rumbling sound, and the entire ground was shaking. The high-temperature resistant steel plate that had just been replaced was burned red by the high-temperature tail flames. Fortunately, the quality of the steel plate was not bad, and it only melted slightly, basically withstanding this round of tests. One second later, Rocket No. flew up steadily again, and this time, the rocket's upward acceleration was obviously much faster than the first test.

Just five seconds later, the rocket exceeded its last hovering altitude and was still flying high at full speed, with the momentum to soar into the sky.

"The rocket is currently flying at an altitude of 500 meters, with 14.2% remaining fuel and a positioning deviation of 0.2 meters."

"The rocket is currently flying at an altitude of 900 meters, with 12.9% remaining fuel and a positioning deviation of 0.4 meters."

"The rocket is currently flying at an altitude of 1400 meters, with 12% of fuel remaining. It is about to reach the predetermined altitude. Engines 1, 2, 3, and 4 are gradually reducing their output in preparation for hovering."

"The rocket is currently flying at an altitude of 1503 meters, with 11.9% of the remaining fuel. It has reached the planned altitude, and the hovering procedure has been initiated. Engines 1, 2, 3, and 4 have been shut down."

"The sensor detected the presence of strong winds at high altitudes, with wind speeds reaching 17 meters per second. Affected by this, the rocket's positioning was seriously offset and the flight attitude tilted 10 degrees. The high wind correction program has been activated, and the No. engine has adjusted the direction and size of the flame jet on its own. The rocket's flight attitude has been corrected, and the rocket's positioning has returned to the set range."

Under the tense gaze of Qiao Ruida and other R&D personnel and a large group of construction workers, the launch vehicle in a hovering state kept shaking from side to side, but it remained standing. At this time, a piercing radar warning sounded in a border radar station hundreds of kilometers away from Ruida Space City. The two soldiers on duty immediately perked up and looked at the radar screen.

"Hey, what is this thing? It looks like a stick, and it takes off vertically. It looks like a missile. Squad leader, are there any missile tests or exercises in Meng Province today?"

"I haven't seen any relevant notifications. The scanning image features of our domestic missiles are stored in the radar and can be easily identified, but this thing has no clues. Judging from the location, this thing appeared in the SZWQ airspace, which is the recovery site for manned spaceflight. Will there be space activities and the launch of sounding rockets?"

"I checked it out. Yes, I found it. There is indeed a report from the Space Administration, but it is not from the two state-owned aerospace companies, but from a private aerospace company called Ruida Aerospace. It said that they would conduct a rocket launch and recovery test. Are all private aerospace companies so aggressive nowadays that they want to do rocket recovery right away?" (End of this chapter)