"These three methods are also all methods currently used by all manned spacecraft in the world. Of course, compared with some traditional manned spacecraft, there is still a big difference between us and them.
First of all, the escape device of traditional manned spacecraft uses the escape tower on the top of the rocket fairing to escape.
In other words, the manned spacecraft does not participate in the entire escape process, and is completely controlled by the rocket itself. Until the escape tower detaches, the fairing opens, and the spacecraft detects free fall, each part separates, and the return capsule throws out the parachute
for landing.
As for us, just like the Dragon spacecraft, we use the reverse thrust rocket on the return capsule of the spacecraft as an escape device to push the return capsule of the spacecraft to escape and then escape to a safe distance.
Compared with traditional escape methods, our method without fairings and extra escape towers is faster and safer.
In addition, when launching a traditional manned spacecraft, the huge escape tower on the top of the rocket fairing also greatly occupies the payload of the rocket, which can be said to reduce the weight of the manned spacecraft itself. This will not only affect the payload of the spacecraft
, will also increase launch costs.
As for us, we don’t need to worry about this, we can make full use of the payload and transport more things into space, which greatly reduces and lowers the launch cost.”
After hearing Guo Yulong's introduction, Wu Hao and everyone present couldn't help but nodded.
What about tomorrow’s airdrop experiment? Yang Fan, who had been sitting silently on the side, asked.
Although everyone's attention has been on Wu Hao since the meeting, they have not relaxed their attention on Yang Fan at all. You know, Yang Fan is the CTO (Chief Technology Officer) of the group company.
In addition, he is also an important shareholder and one of the founders of the company. His opinions and attitudes are also crucial and can be said to affect the fate of a project.
In addition, Yang Fan, the CTO, is in charge of the company's technical research department, and is theoretically directly under the leadership of the Institute of Aerospace Science and Technology.
Important personnel arrangements, resources and capital investment in this laboratory also require Yang Fan's approval. Therefore, although Yang Fan has been silent, no one dares to take it lightly.
What made them even more curious was that Yang Fan was also a professional and technical person and was very familiar with technology. He was also involved in many projects of Haoyu Technology. If he found flaws, loopholes, or handles, there might be consequences.
They felt better.
However, for many scientific research and technical personnel, the biggest fear is that the person sitting at the top, the biggest boss above them, the big boss, seems to be a technical talent, and he is also a genius technical scientist.
After hearing about Yang Fan's culture, although Guo Yulong was much older, he still did not dare to take it lightly, and immediately reported it seriously to Yang Fan and Wu Hao.
Tomorrow's airdrop test of the return capsule will mainly test the flight of the return capsule during the landing process, the deceleration of the parachute throw, and the final ignition and deceleration of the reverse thrust engine of the return capsule to land safely.
This can be said to be related to the safety of the entire return capsule when it returns to the ground, and also to the personal safety of the astronauts inside the return capsule.
What is even more troublesome or difficult is that once the return capsule fails during the landing process, it will be difficult, or even impossible, to solve it.
This also means that if the failure is serious, the return capsule of the spacecraft is likely to hit the ground directly at an extremely high speed.
I believe such serious consequences are not far away from any of us, and we cannot afford them.
Therefore, we need to continuously conduct airdrop experiments to ensure that all landing deceleration devices can work properly, ensure that the landing process is foolproof, and the return capsule lands safely.
Tomorrow we will conduct a mid-to-high-altitude airdrop experiment of five thousand meters. We will also conduct a low-altitude airdrop experiment of three thousand acres, as well as high-altitude airdrop experiments of eight thousand meters and ten thousand meters to test the performance of the spacecraft return capsule at various altitudes.
Whether the landing technology is reliable and safe.
Wu Hao glanced at Yang Fan, then nodded and said with a smile: "Let's talk about this project here, let's continue with the content below.
Let’s talk about the development of our Jianmu-7 rocket and the intelligent lunar exploration rover we will launch next fall.”
After speaking, Wu Hao looked at Zhou Xiangming. After Zhou Xiangming understood, he nodded and said.
"Okay, then let me first report to you on the development progress of our Jianmu-7 rocket. After careful demonstration and technical research, this project has now entered the specific development stage.
Our rocket manufacturing factory in Jiangcheng has been completed. This time Mr. Yu (Yu Chengwu) went over to arrange the related work there.
Our Jianmu-7 rocket will also be developed at the Jiangcheng Rocket Manufacturing Factory. After the development is successful, the rocket will be transported directly along the Yangtze River route to the Nanhai launch site using the rocket transport ship of the Aerospace Industry Corporation.
.
Our first intelligent lunar exploration rover will also be placed there for selective dispatch."
"Why not develop and launch it in the northwest? The conditions here are ready. Why go far away and build a rocket manufacturing factory in Jiangcheng?" A middle-level female cadre of the company who came with Wu Hao this time couldn't help but say
asked.
Hearing this question, everyone present laughed.
Did I say something wrong? The middle-level female cadre asked a little confused.
Wu Hao smiled and waved his hand, and then said to Zhou Xiangming: "Since someone asked, just give him a brief explanation."
Okay. Zhou Xiangming nodded, then smiled at the female cadre and said: "That's right, we chose to build a rocket manufacturing plant in Jiangcheng, mainly because the transportation in Jiangcheng is more convenient and shipping can be used. This is our internal
Lu couldn't do it.
The Jianmu-7 rocket we are developing is a medium-heavy launch vehicle with a diameter of 3.8 meters, a height of 59 meters, and a take-off mass of 450 tons. It is difficult to transport such a big thing by road, and it is impossible to transport it by road.
Use rail transportation.
Due to restrictions on railway bridges and tunnels, the diameter of rockets in our country is generally kept at 3.35 meters. This size is not because of anything else, but because this is the maximum size that these train tunnels can accommodate.
There are no such restrictions on shipping, which is why we launched the Chang-5 rocket in the South China Sea.
Secondly, the Nanhai launch site is relatively close to the equator and has a relatively low dimension, so choosing to launch there will save fuel. This not only saves costs, but also transports heavier payloads into space."