In order to make this manned spacecraft safe and reliable enough, we have conducted various testing experiments on it tens of thousands of times to ensure that it is safe enough. To this end, we have also invited relevant domestic and even international experts
Aerospace technology experts participated and conducted demonstrations and discussions on the relevant technologies of this spacecraft, allowing them to find faults and problems.
Even in order to motivate everyone, we have also set up a special reward fund. If we find a problem, we will give equal rewards according to the severity of the problem.
For this reason, we have received many complaints from our manned spacecraft development project team. In their opinion, we are crazy, how can we spend money to create such a troubleshooting team to make ourselves unhappy.
Later, also because of these problems, very fierce contradictions and conflicts broke out between the project R&D team and the fault-finding group. Sometimes the two parties were entangled over a problem, and they were very angry, and sometimes they were even about to use fists.
However, as this confrontation and cooperation deepened, the relationship between the project R&D team and the fault-finding team became more and more harmonious.
There are no irreconcilable conflicts between the two of them, let alone personal grudges. They are just fulfilling their responsibilities and obligations from the perspective of their respective work responsibilities.
It is suitable to prove that this seemingly unreasonable method has played a big role. We have found thousands of problems, large and small, and solved them one by one. Some of them may not be problems in the eyes of others, but for the sake of
Safe and reliable, for comfort and convenience, we have also made adjustments to make it safer, more reliable and more user-friendly.
Many of the technical standards have far exceeded the technical standards of existing manned spacecraft. It can be said that we have developed and established a set of technical standards for manned spacecraft of our own.
The subsequent three successful launches of unmanned experimental spacecraft have also verified the safety and reliability of our manned spacecraft, and have been highly praised by aerospace authorities and technical experts in the industry.
Speaking of this, Wu Hao paused briefly, and then continued to speak to the reporters in the audience: "We attach great importance to the first manned launch mission, so we strictly monitor the production and manufacturing process of this spacecraft to ensure that every piece of
All parts meet our stringent requirements.
And after the spacecraft was manufactured, we conducted multiple tests on the spacecraft ourselves to ensure that it met our technical standards and safety requirements before allowing it to leave the factory.
After the Walker 4 spacecraft was transported to the Nanhai launch site, relevant technical expert groups from the aerospace department conducted relevant rigorous tests. Only after ensuring that our spacecraft met relevant safety standards was it allowed to be released."
"The Jianmu-7 rocket launched by the Walker 4 manned Fei Chuanfang this time is not a brand-new rocket. Its first-stage rocket is actually a second-hand rocket, which means that before this time,
This first-stage rocket has successfully carried out two launch missions."
Hearing Wu Hao's words, the reporters in the audience couldn't help but become curious. Why would a second-hand rocket be chosen for such an important first manned launch mission? Why is this? Is it just to save costs?
Looking at the curious eyes of everyone in the audience, Wu Hao smiled and said: "First of all, let me tell you that using this second-hand first-stage rocket to undertake the launch mission is not for cost savings.
Even if we deduct more, we can't be confused about such a big matter.
The reason why such a second-hand rocket was chosen as the launch vehicle for the first manned launch is mainly because this second-hand first-stage rocket has successfully completed two rocket launch missions, both of which were successful and performed well.
Compared with the new rocket, this second-hand first-stage rocket that has performed two manned launches is relatively more stable and reliable. Otherwise, it would not be possible to succeed twice in a row.
For a retractable rocket, its performance is generally at its best from the second to the fifth time. Because the first launch has verified the safety of the rocket, if there is a problem with that part of the rocket, then
This can already be seen in the first round of launch.
In fact, the reason why traditional rocket launches are so risky is mainly because they are one-time. Because it is a new rocket and has not been verified by actual launches, it is naturally impossible to know whether it can succeed.
As for the recyclable launch vehicle, there is no need to consider such issues, because the first launch has been verified. If there is a problem, the first launch may have failed. Even if there is no failure, these problems will be solved in the first launch.
and were exposed during the second launch, so that we can find these problems and carry out maintenance and repairs to ensure that it is reliable enough, safe and stable, and operates normally in the next flight state.
The second-hand first-stage rocket used for this manned launch has performed in excellent condition after the first two launches, with basically no damage. Therefore, after a comprehensive evaluation, we decided to use it
The first stage rocket used for our launch vehicle.
As for the second-stage rocket of the rocket, although it is a conventional disposable rocket, we have also put a lot of effort into it. First of all, its technology has been fully verified in previous launch missions, proving that it is safe and reliable enough to perform well.
Stablize.
Secondly, on this basis, we optimized and upgraded it, and focused on reliability. We adopted the most popular dual-bus dual-system structure of current rockets to ensure that the rocket can immediately recover when a single bus or system fails.
Switching to the backup bus system will not affect the normal operation of the rocket.
As you all know, our Jianmu-7 rocket has no fairing and no escape tower. The Walker series spacecraft carries its own escape system. It can instantly ignite and break away from the faulty rocket and land on the ground when a fault light appears on the rocket.
Generally speaking, the entire escape tower only functions at the middle and lower levels. Basically, it will separate from the fairing shortly after the first stage rocket breaks away.
This is also the most dangerous stage in the entire launch process. Because the altitude is too low, an escape device is needed to bring the spacecraft to a sufficient height so that the landing site on the spacecraft can have enough height and time to deploy to ensure that the spacecraft lands safely.
At this time, the advantages of our integrated design and our use of second-hand first-stage rockets are reflected.
First of all, it uses a second-hand first-stage rocket with relatively stable performance, so it can minimize the risk of mid- to low-altitude during takeoff and before the first-stage rocket falls off. This is precisely the most dangerous part of the entire rocket launch process.