Chapter 1638: High technical risk

From the principle point of view, the spacecraft is just like the previous satellites, the launch method is exactly the same, and the landing is also quite similar. The parachute is used for recovery, but before the final landing, a recoil rocket is needed to further reduce the speed.
And the space shuttle? It is a separate aircraft-like spacecraft. It has the ability to fly by itself and needs pilots to drive it. Its shape is also a delta-wing aircraft. As a spacecraft, it requires specialized personnel to develop aircraft. R & D.
Aside from other things, this alone can make a lot of people difficult. All of those present are rocket experts.
In order to develop the Blizzard, Xiong Guo transferred a large number of personnel from their aircraft development department to participate in this project. What about his side? Our own side simply does not have this ability.
If theoretically speaking, yes, the space shuttle is a better choice. However, we do not have this ability and can only give up temporarily. In contrast, the spacecraft is simpler, especially when it is recycled, only recycled. The difficulty of the recovery compartment is greatly reduced.
"Let’s continue to say that the structure of the space shuttle has two different ways." Qin Guan said: "The space shuttle of the Ying Guoren has a main engine. If it needs to be used multiple times, the life of this engine will be Can you guarantee it?"
Han's aerospace technology is quite developed, but there is a gap between the aerospace technology and the West. What is the reason?
A spacecraft is a one-off. For example, a rocket is launched. Even if it is finished, it only needs to be launched once. The combustion of the rocket engine is a matter of hundreds of seconds. As long as the life span of these hundreds of seconds is guaranteed.
Aviation airplanes are different. Fighter jet engines require hundreds of hours if they are weak and thousands of hours if they are advanced. This requires great efforts in materials and so on.
In this way, aviation engines are much more difficult than aerospace engines, which is the case.
The space shuttle of Eagle Country is the same as that of Bear Country. The space shuttle is on the side, and there is a large cylinder hanging on it, and there are boosters on both sides.
However, in actual comparison, the two are actually different.
There are fuel tanks hanging outside the Eagle. The fuel tanks hold thousands of tons of fuel, all of which are high-efficiency liquid hydrogen and liquid oxygen fuels. These fuels enter the main engine under the space shuttle's buttocks. 8.5 minutes after launch, the fuel After it was consumed, he threw it down and fell into the ocean.
In this way, the engine behind the space shuttle has to be used many times, which brings a lot of uncertainty. Every time it is used, it has to be overhauled. A small problem may cause the space shuttle to crash.
Apart from other things, at least there is no such technology in China.
"If we want to take the space shuttle plan, the Eagle Country's plan is not the best." Ren Lao said: "We plan to take the road of the Bear Country, and at the same time, the Chicken Country is also the same."
Everyone can already think of the hidden dangers in Eagle Country's plan. It is very difficult to make the rocket engine burn and use multiple times, so it is necessary to change the method.
The Xiong State is also engaged in the space shuttle, and the plan has now been roughly disclosed. Unlike the Eagle State, the Xiong State’s plan is more like a rocket launch, and the space shuttle is just a rocket load.
The space shuttle Blizzard has only small engines for orbital changes. It is also side-mounted to a huge cylinder. This cylinder is not a fuel tank, but a solid rocket.
In this way, every time it is launched, it still uses ordinary rockets. Of course, this rocket is full of power. An absolute super rocket can directly send dozens of tons of payload into the Earth's low-Earth orbit.
In this way, every time the rocket is launched, it is a one-off. The small engines on the space shuttle are only used to adjust the orbit and so on. In this way, the difficulty of the system is greatly reduced.
Not only the bear country, but the entire ESA under the leadership of the chicken country is also engaged in the space shuttle. They proposed it in 1976.
Ji Guo is also enthusiastic about manned spaceflight, and plans to launch a manned space-to-earth shuttle on the Ariane 5 carrier rocket. This is a hypersonic glider, which is simpler. Named after the mythological Hermes.
However, later generations did not see it. Because of funding issues, this project has been cancelled. Manned spaceflight can only be carried out by large countries, because only large countries can have this ability.
Qin's point of view: "Yes, if we want to build a space shuttle, we can only take this path, but our current rocket that can undertake such a launch mission has not yet come out."
If you want to build a space shuttle, you don't have any technical reserves. Although you are already building a large-thrust rocket, this kind of rocket will be successful and there are still many years to go.
"We are currently using the Long March-2 series of launch vehicles with the highest success rate. This rocket has a near-Earth orbit load of nearly ten tons, and it can be used as a vehicle for our spacecraft." Qin Guan said: "This The program has the lowest cost and the least technical difficulty. It is our easiest program to succeed. As for the space shuttle, why don't we take it as a long-term plan?"
A spacecraft is a must, because Qin Guan’s route is the spacecraft and the space station. The space station is a large platform in the universe that can conduct various effective scientific experiments. A new generation of high-thrust rockets developed by himself. It is for launching the modules of the space station.
As a space station, there must be a spacecraft on standby at any time. Once there is a problem with the space station, it can be withdrawn from the space station and returned to Earth.
A spacecraft is the best solution. Look at the space station in the bear country. There is a spacecraft on standby at any time. Generally speaking, there will be an interval of six months or even a year, depending on how long the astronauts work on it.
In fact, this spacecraft is the spacecraft when the astronauts come up. After docking, it will run with the space station. Whenever you go back, you will sit on this ship.
Of course, if the mission is normalized, there will be a second batch of astronauts coming up, and the spacecraft they bring will also be docked. Therefore, when the space station is at most, two spacecraft will be carried at the same time.
Can the space shuttle be so wasteful? Of course not!
The space shuttle stays in outer space for at most a week before it can get off. Therefore, the spacecraft is a must. As for the space shuttle, we will talk about it later. When the country is strong, we will demonstrate whether it will be launched. Now, the universe The spaceship is a must.