Before the financial turmoil began, when it was already foreseen.

Zhang Xingyang once proposed it after talking about this matter with Zhou Zhengxiong.

If the state can get some of the benefits from this incident, it hopes to be able to invest in the construction of hypersonic wind tunnels.

At that time, Zhou Zhengqun just smiled and said: "If what you say is true, then even if you give you all this money, it is not a problem!" ”

However, at that time, Zhou Zhengxiong was more just joking, after all, the generation of financial turmoil was almost impossible in everyone's minds at that time.

Now Zhang Xingyang is ready for Zhou Zhengxiong to fulfill his promise!

"Old Zhou, the construction cost of the hypersonic wind tunnel that you said before, should it be fulfilled this time?"

Zhang Xingyang, who was sitting on the sofa, looked at Zhou Zhengxiong expectantly at this time.

Zhou Zhengxiong, who was originally in a good mood, remembered what he had said at this time, and instantly felt a little embarrassed.

After all, at that time, I didn't really believe that there would really be a financial crisis, so I was a little too full.

It's not so easy to cash out at this time, although in the process of fighting against the Quantum Fund, I did get a lot of money.

But those mines, forest farms, fishing farms and so on, the opinions above are still inclined to self-development, and the money is basically invested in this area!

Therefore, the funds that can be taken out to build a hypersonic wind tunnel group are definitely not as much as previously said.

"Xingyang, although we have made a lot of money this time, I have just told you that the industries we have obtained are likely to need to be developed by ourselves, and these funds may be used as start-up capital for construction work."

"Therefore, the funds for the construction of hypersonic wind tunnel groups may not be as much as promised before."

Zhou Zhengxiong looked at Zhang Xingyang with some embarrassment and said.

This situation was actually expected by Zhang Xingyang, and he never thought that he would be able to get all the benefits.

In the course of the entire financial turmoil, according to Zhang Xingyang's estimates, at least $6 billion was made from the Quantum Fund and other Western funds in China.

In fact, it does not cost so much money to build a hypersonic wind tunnel, and it can be about 2 billion US dollars, which can build several hypersonic wind tunnels with a test speed of about Mach 15.

"Old Zhou, we actually don't need that much money, just a dozen or two billion dollars is enough."

Zhang Xingyang looked at Zhou Zhengxiong, who had a little bad face, and said.

Before meeting Mr. Zhang, Mr. Zhou had actually met other people who worked in aerospace systems.

According to the different test speeds, wind tunnels can be divided into low-speed wind tunnels, high-speed wind tunnels, and hypersonic wind tunnels.

The wind tunnel with a test speed of Mach 15 proposed by Zhang Xingyang is top-notch even in a hypersonic wind tunnel.

Generally speaking, low-speed wind tunnels simulate aerodynamic conditions by blowing air with fans, while high-speed and even ultra-high-speed wind tunnels use shock wave technology.

Only such technology can achieve hypersonic speeds of Mach 5 or even Mach 10 or more, and of course, the time for a single experiment in such a wind tunnel is quite short.

Being able to maintain 100 milliseconds is already the best in the industry!

"Being able to get so much money this time is basically your credit, and logically speaking, I shouldn't refuse the amount you said."

"But it's really not easy for us right now, so we probably can't just give you so many dollars."

Zhou Zhengxiong said a little tactfully, hoping that Zhang Xingyang could understand their difficulties.

At this time, domestic foreign exchange was still relatively scarce, so Zhang Xingyang didn't care much about whether he got US dollars or domestic currency.

As long as there are enough funds for the construction of a hypersonic wind tunnel complex, it is enough!

"Basically, we don't think much about importing equipment from abroad in hypersonic wind tunnels, and it doesn't make a difference to us whether the dollar or the domestic currency is a domestic currency." Zhang Xingyang said almost without thinking.

"And our own detonation shock wave technology is not very weak, and it doesn't have much impact on its use."

"About 10 billion is almost enough, of course, this must not include the cost of land."

At this time, although the price of land across the country was not as crazy as in later generations, it had already shown signs of it.

Wind tunnels need a large area, and as a large power consumer, each start-up test needs to consume 10,000 kWh of electricity.

Such a large power consumption means that it cannot be built in the deep mountains and old forests.

Even if you build your own power plant, you need to build it in a place with convenient transportation.

Because of such a large power consumption, it is difficult for wind power or solar power to keep up, except for thermal power stations or nuclear power plants.

As for hydropower, the construction of the Three Gorges has not yet begun at this time, so it will not be considered for the time being.

"You don't have to worry about the land problem, we will definitely solve it for you."

"How many wind tunnels are you going to build?"

"Is 10 billion enough?"

After Zhou Zhengxiong promised to solve the land problem, he asked two questions one after another.

In the previous internal discussions, in fact, the Rocket Research Institute has come to the conclusion that at least three wind tunnels need to be built.

A high-speed wind tunnel with a test speed between Mach 5 and Mach 10 is mainly used to test some small and medium-sized rockets and satellites.

The remaining two were tested at speeds above Mach 10, and one of them was tested at Mach 15, mainly for the exploration of hypersonic missiles.

The other is mainly used to simulate high-speed situations on the sea surface, which is more special and is specially used to explore hypersonic anti-ship missiles.

"It is mainly used to build three wind tunnels, one high-speed wind tunnel and two hypersonic wind tunnels, but there may also be some supporting facilities, such as a thermal power plant!"

After Zhang Xingyang calculated, he found that 10 billion may be relatively reluctant.

"If you don't count the investment in thermal power plants, then it should be sufficient, but if the power plants are transmitted from other places, it will be too troublesome."

"So it's a sure thing to build your own power plant. It will probably cost about a billion dollars in construction costs. ”

At this time, Zhang Xingyang was a little nostalgic for the "Three Gorges of Space" space power station built in China decades later in the original history.

Electricity is transmitted through microwave technology, so you don't have to worry about electricity at all!

"Then let's do it, allocate 110 billion from the previous revenues for you to use for the construction of hypersonic wind tunnel complexes!"

In the end, Zhou Zhengxiong made a final promise to Zhang Xingyang's construction funds.

Today's last chapter may be after 12 o'clock, with an injured arm, take a break.

(End of chapter)