Rebirth 99 to become a car giant.

Gryffindor is in a complicated mood right now.

Whether the United States really landed on the moon is a topic that has not just emerged in the past few days. It has been a hotly discussed topic in the United States for quite some time.

Even every once in a while, the topic becomes more popular.

Ever since Venus Technologies started its journey to the moon, this topic has become quite popular in the United States.

It would be a lie to say that Gryffindor felt no pressure at all.

But he didn't expect that Venusstar Technology would come out to refute the rumor, saying that NASA did not fake it and that they really achieved the moon landing that year.

However, she didn't have much time to worry about it.

Because the spacecraft carrying lunar soil from Venustech is about to return to Earth.

At that time, the large amount of lunar soil they carry will be deeply studied in many subsidiaries of Venusstar Technology.

Combining these research results, there will definitely be a lot of news coming out.

But what Grunfen didn't expect was that the first news would be how the Venustech spacecraft returned to Earth.

On May 2016, 5, after a 22-day "business trip" in space, Venusstar Technology's lunar spacecraft returned home.

This time, not only did they bring back the "back side of the moon soil" that many countries were lining up to receive, but they also performed a "performance show" on the way home.

The "skipping stone" landing method adopted by Venusstar Technology this time is a "unique secret" that only China has mastered so far.

This technology not only makes many Western countries envious, but also makes some countries panic.

According to the technology used by previous aircraft return, most of them rely on their own rocket thrusters to perform "reverse propulsion" after entering the atmosphere, thereby reducing the speed generated during descent.

When the aircraft descends to a certain speed and altitude, the engine is shut down, the aircraft opens the parachute for deceleration, and finally lands in the designated area.

This method can be said to be the technology used by all aircraft except Venusstar Technology so far, but this technology has very high requirements for carrying fuel.

But it actually has obvious disadvantages.

During descent, the violent air friction and the rocket's tail flame will cause the outer shell of the aircraft to reach a high temperature of up to 1000 or even 2000 degrees. At the same time, a "black barrier" phenomenon of communication failure will occur, which invisibly increases the danger of the aircraft.

However, this time, Venusstar Technology adopted a special "skipping stone" landing method.

Although many people have played the game of "skipping stones" as a child, few can hit the target as accurately as throwing darts.

However, Venusstar Technologies was able to adjust the flight path while maintaining a high-speed descent, and ultimately landed accurately at the landing point in the grassland province.

This is a technical requirement that scientists in many countries currently find difficult to achieve.

The "skipping stone" landing is to use the friction generated with the atmosphere to increase resistance after the first entry into the atmosphere, perform the first step of deceleration, and then "drill out" of the atmosphere by adjusting the flight trajectory.

At this time, the flight speed has basically been reduced to the first cosmic speed, and then it enters the atmosphere for the second time from outer space, gradually slowing down during the gradual descent, and finally achieving a smooth landing.

This process sounds simple, but it involves extremely high operating techniques and technological content.

For example, how to maintain stable flight and effective communication under the high temperature generated by friction, how to change the route at the appropriate time, and at what angle to re-enter the atmosphere, all of these require precise calculations and accurate control.

This beautiful "performance show" by Venusstar Technology has shown Western countries that China is able to master this technology and can accurately land at a designated location.

If this technology is used in the military, there will be more "missiles" that can carry out precise and destructive strikes on targets at more tricky angles and faster speeds.

You should know that the hypersonic interceptor missiles used by various countries so far can only intercept missiles below Mach 10, and a certain amount of luck is also required. There is currently no effective interception technology and method for this kind of "water drop falling from the sky" tactic.

This is why a simple landing caused such a big stir.

"Boss Cao, you guys have given us a surprise."

Qian Junfeng called immediately.

To be honest, it was only after watching the video today that he realized that the Venusstar Technology's spacecraft actually returned to Earth in this way.

Aerospace technology is also capable of “skipping stones on water”.

One of the missiles they developed used this special technology.

Aerospace technology has conducted tests before and found that it is difficult for current anti-missile systems to imitate the attack of this kind of "water-throwing" missile.

Originally, Qian Junfeng thought that this was a unique skill of aerospace technology and that no other manufacturer in the world had this level of capability.

But now, seeing the scene of the Venusstar Technology's spacecraft returning to Earth, he knew that he had been overthinking.

It turns out that Venusstar Technology has mastered this technology without realizing it.

Even judging from the current situation, the other party may have better aerospace technology than us.

They actually dare to use this method to recover spacecraft from space.

The most important thing is that the final landing accuracy is surprisingly high, with an error of only about 50 meters.

Not to mention that for intercontinental ballistic missiles carrying nuclear weapons, an error of 50 meters can be ignored.

Even for conventional missiles with large ammunition capacity, this error is completely acceptable.

After all, it was something launched directly from space.

"Every action we take brings surprises to the world."

"It's not the Americans who always surprise us. We should give them a little blow once in a while."

Cao Yang is very calm now.

They will not admit that they have mastered this special missile technology, but they show it to everyone.

This is very interesting.

"Isn't your long-term plan for the future moon landing to use starships to transport people and cargo?"

"Why did they adopt a completely different approach this time?"

Qian Junfeng's question probably represents the questions of many people.

The two completely different technical solutions don’t seem to come from the same company at all.

The key is that no matter which option is adopted, it will bring a huge impact to the world.

It is becoming increasingly difficult to understand what Venusstar Technology is doing.

"Different methods have different uses. We must have multiple options."

"Besides, as the first choice for the moon landing, this method is the most suitable at present. Otherwise, we will need to wait for the testing of the starship spacecraft to be completed before we can start the journey to the moon."

After Cao Yang's explanation, Qian Junfeng seemed to understand a little.

Although Venusstar Technology is a private enterprise, its schedule requirements are no less than those of Aerospace Technology.

As long as Cao Yang sets goals for his subordinates, they must achieve them unless they encounter completely insurmountable difficulties.

It is impossible to just muddle through life.

The average age of the entire scientific research team of Venusstar Technology is only in its early thirties.

Whether it is NASA, United Rocket and Space Corporation, the European Space Agency, or the Indian Space Research Organization, this age is very exaggerated.

Although being young means that experience may not be sufficient, the drive is very strong.

With the help of the right direction and the guidance of some experienced engineers, the achievements of Venustech are naturally becoming more and more exaggerated.

"Now that you put it that way, it seems to make sense."

"I'm looking forward to the moment when your starship lands on the moon."

Qian Junfeng roughly understood what Cao Yang meant, and couldn't help but recall the development of the starship spacecraft.

According to Venusstar Technology's plan, they will need to conduct at least three more tests this year.

Only in this way can we conduct formal manned space flight tests.

Compared to the shock on the aerospace technology side, America was frightened.

John personally called David from Boeing and Griffin from NASA together, and they held a meeting to discuss the impact of this matter.

"David, Boeing is the most important defense contractor in the United States, and many of our missiles are also produced by Boeing."

"There is news that China has successfully tested a certain type of 'skipping stone' ballistics before, and now Venusstar Technology has used this technology to achieve the return of a spacecraft to Earth for the first time."

"I don't think I need to say much about what this means, everyone knows it very well."

“When will Boeing be able to come up with similar missile technology?”

John's tone was more serious.

Faced with this situation, he was really a little worried.

China has already deployed the air defense missile system produced by Venusstar Technology, a product that is said to have world-leading performance.

This means that it will be very difficult for American missiles to hit China in the future.

However, China can use the "skipping stone" method to shoot missiles onto American territory, but they have no way to intercept them for the time being.

"In the field of hypersonic missiles, we are not completely idle."

"We also have the technique of skipping stones on water, but China uses the Qian Xuesen trajectory, while our country uses the Sanger trajectory."

"The main principle of the Sanger trajectory is to let the missile repeatedly jump and skip at the edge of the atmosphere, thus achieving the effect of unpredictable trajectory."

"The Sanger trajectory has multiple jumps, allowing the missile to achieve a faster flight speed, but because its trajectory is at the edge of the atmosphere for a long time, the missile is easier to detect and calculate its trajectory by radar, and its concealment is much worse than the Qian Xuesen trajectory used by Huaxia."

"Qian Xuesen's trajectory does not strictly follow a parabolic trajectory."

"Its design principle is that the missile is first boosted by a rocket like a ballistic missile, and after reaching the altitude of near-space, the engine is shut down and the inertia is used for free flight."

"This mode makes the missile's flight trajectory unpredictable, and the enemy cannot predict the missile's falling direction, making it difficult to intercept."

"This model creates a very troublesome situation, that is, the launch location is known, the target is known, but no one knows the trajectory."

David felt that he had to make things clear, otherwise it would seem as if Boeing's missile technology was very backward.

Actually, it’s not like that.

However, John wanted to know the result now; he was not particularly interested in the process.

But Gryffin, who was standing next to him, knew that there was definitely no good in John calling him over today.

So he must stand in David's shoes and help a little.

"Why is the Qian Xuesen ballistics used by China so difficult to prevent?"

Gryffin's question gave David another chance to explain himself.

"Traditional ballistic missiles follow parabolic trajectories. All it takes is for the early warning radar to detect a few points in the flight process, and then for the supercomputer to analyze it, the missile can be accurately intercepted."

"Although cruise missiles avoid parabolic trajectories, their range is greatly limited due to their over-reliance on aerodynamics for maneuvering flight."

"Qian Xuesen combined the characteristics of ballistic missiles and cruise missiles and creatively designed the 'boost-glide' trajectory mode."

"This theory was actually proposed in the 1940s. It's not something innovative."

"It's just that everyone thought that there was no way to apply this theory to practice. I didn't expect that China has recently made a breakthrough in this technology."

David sighed helplessly.

What he said is indeed true.

If Boeing had known that this type of missile could be produced, it would have definitely arranged a large number of people to research it in the early years, and would not have fallen into the passive situation it is now.

It’s just that there aren’t so many ifs in this world.

"China's missiles can reach our territory, but our missiles can be prevented by the other side."

"This is totally unacceptable. How long will it take Boeing to produce a similar product?"

Obviously, this is the important reason why John called Boeing and Griffin over today.

Find the problem, analyze it, and then solve it.

The technical principle of China's "Skipping Stone" missile does not seem to be a secret, and the relevant research theories can be easily obtained by many people.

But it is not so easy to produce it.

David was a little unsure about John's question.

So there was silence for a while.

"John, the theoretical direction adopted by China is different from ours. If we want to switch to the same plan as China, we still need to conduct internal evaluation."

"But conservatively speaking, it will take at least three years."

David knew he couldn't help but respond.

But he also didn't want to answer a schedule that Boeing could never meet, as that would get him into endless trouble.

"Venus Technology has caused us too much trouble over the years. We really need to think carefully about how to get along with them."

Gryffin sighed beside him, his face full of helplessness.

If you fight, you may not win, and even if you win, both sides will suffer losses.

So we need to think carefully about what to do next.