In March, the grass grows and the warbler flies.

The research and development of a new 1,210-ton recyclable rocket by the Rocket Research Institute has entered a new stage.

The integration of various systems is carried out in an orderly manner.

The fastest progress is the overall shape design of the rocket, which has been preliminarily completed.

Because of the structure and appearance, it is different from the previous three-stage liquid rocket.

Therefore, if the shape design of the rocket wants to be officially finalized, a series of wind tunnel tests need to be carried out.

High-speed Institute of Aerodynamics Research Center, Supersonic Wind Tunnel System, FT-51 Wind Tunnel.

The dimensions of the new recoverable rocket are 72 meters long and 4.5 meters wide.

Of all the wind tunnel systems in China, only the FT-51 wind tunnel can test such a large supersonic object.

In the supersonic state, the shape design of the rocket is slightly worse, then the fuel required to achieve the same speed will be greatly increased.

So both to increase the speed of the rocket and to save fuel consumed when accelerating.

The shape of the rocket must be designed to the extent of excellence.

Blowing wind in the wind tunnel is the simulated operation of a rocket at supersonic speed.

You know, because the thrust of the 1210-ton propulsion system is actually more than enough to propel this rocket.

After all, the weight of the entire rocket, plus fuel and a satellite payload, will not exceed the mass of 600 tons for take-off.

So the focus of this test is not on the fuel economy of the rocket.

The real focus is actually to test the stability of the rocket in a supersonic state.

If the structure cannot be stabilized when the rocket is launched into a supersonic state, then the rocket is at risk of disintegration.

"How about the finite element simulation of the shape force that I did with the small supercomputer in the research institute before?"

Flipping through all kinds of documents, Zhang Xingyang asked Qiao Yang, who was sitting beside him.

This time, the two of them took the train to the high-speed research institute of the Aerodynamics Research Center.

The train car is a soft sleeper car with only two people, and it is a confidential car that has passed the national security inspection, so Zhang Xingyang dared to talk to Qiao Yang about the specific information of the rocket on the train, and he was not worried about the problem of information leakage.

The entire new rocket has been transported by train to the city where the aerodynamics research center is located at high speed.

It is then transported to the location of the wind tunnel system of the high-speed station by means of extra-long cargo trailers.

Of course, during this process, all transportation is carried out under the supervision of the national security system.

Even the drivers of these heavy trailers are professional transport teams that have undergone political trials.

For the transportation of the rocket, Liang Yi, as the chief steward of the research institute, coordinated nearly 100 units, and then safely and confidentially transferred the rocket from the assembly center to the wind tunnel test site.

Since the train is transported in sections, it is necessary to carry out final assembly before the wind tunnel test.

"The results of the force finite element simulation are not bad, there is no place where the force is relatively concentrated, and the stress concentration phenomenon is not very obvious."

Qiao Yang, as a genius full of talent in rocket mechanics, naturally there will be no place to drop the chain.

So this result was not at all unexpected by Zhang Xingyang.

"Qiao Yang, have you been exposed to wind tunnel testing before?"

As a newcomer who has just walked out of school for less than a year, Qiao Yang really came into contact with him when he was in school.

"When I was in school before, when I was doing research with my supervisor, I met it once, but I didn't use it."

Aerospace has a small wind tunnel, but it can provide limited speed and is not very large.

However, even so, as an ordinary student, Qiao Yang still has never actually used it, and has only visited it by chance.

"Then you are going to really open your eyes this time, the wind tunnel we are going to this time can be regarded as the most advanced one in China."

"Not only is it capable of testing large supersonic objects, but it is also capable of testing at a high speed, capable of reaching 5 times the speed of sound."

Qiao Yang was instantly interested, after all, there are not many such things in the world now.

And for a mechanics expert like Qiao Yang, the wind tunnel is like an avid figure enthusiast seeing an extremely rare figure.

I saw his eyes shine: "I said before that the seniors of the audiology laboratory would blow our new rockets in a wind tunnel, but I didn't expect that I would be able to meet them in less than a year after I came!" ”

"Actually, the FT-51 wind tunnel looks advanced now, but it is still not enough to develop a real big killer!"

Since he talked about the wind tunnel, Zhang Xingyang is willing to break it up a little more.

"5 times the speed of sound is not enough? Now the ultimate speed of rockets is generally like this, right? ”

Qiao Yang was a little surprised, after all, whether it was a rocket, a missile, or an airplane at this time, as long as it could fly in the sky, there were very few objects that could exceed 5 times the speed of sound.

"Generally speaking, it seems to be enough, but if you want to develop hypersonic weapons, you are still far from it!"

"Hypersonic weapons with more than six times the speed of sound will certainly become more and more important in future wars."

"Whether it's a ground attack, or an anti-ship attack, hypersonic weapons will be needed."

"In a war where mushroom eggs cannot be used, hypersonic weapons are definitely the sharpest spear in our hands!"

Zhang Xingyang's words, Qiao Yang was a little silent.

Yes, this incident was almost a thorn in the hearts of all the people at that time, and it pierced everyone's heart!

"And the development of hypersonic weapons must rely on hypersonic wind tunnels that can reach more than six times the speed of sound."

Zhang Xingyang's words were like a knife that cut deeply into Qiao Yang's heart.

"The hypersonic wind tunnel is indeed very important according to what you say, but the technical difficulty here, even if I have not been exposed to it, I know that it should be very large."

"With the current technical strength of China, as well as the economic situation, it is difficult to build a hypersonic wind tunnel!"

"It's very hard!"

Although Qiao Yang kept talking about the difficulty of building a hypersonic wind tunnel, Zhang Xingyang could see that he actually wanted this thing to be done.

"There will be technology, and there will be money!"

"It's up to us to do it or not!"

Zhang Xingyang's eyes flashed with a light that Qiao Yang couldn't understand.

After all, no one knew at this time that the Asian financial crisis was coming.

Zhang Xingyang had already told the above about this matter in advance last month.

The above also promised him that if he could get a lot of benefits from this original crisis, then he would allocate some funds for them to carry out special construction.

At that time, Zhang Xingyang proposed to build a number of hypersonic wind tunnels.

to support the development of hypersonic weapons.

If this can really be done.

Then it is, to take the wool of the Western capitalists to make the strongest spear to kill them!

(End of chapter)