"This thing, if it doesn't actually fight, no one dares to say that it can be beaten or can't be beaten." Xia Yu shook his head and said: "The group operation of the aircraft carrier battle group is really a three-dimensional combat method, and the choice of tactics can make up for its own shortcomings in a certain aspect. No matter how powerful the plane in the sky is, if the aircraft carrier is damaged or even sunk by a submarine or missile, won't the plane with nowhere to land have to fall in the end? ”

"It's not that easy, is it?" Wu Min said on the side.

"Of course it's not that easy." Xia Yu shrugged his shoulders indifferently: "So I'm just talking." ”

Seeing Xia Yu and his group talking happily, Yuan Limin at the other table couldn't help but run over, in fact, he had long wanted to come over and sit and chat together, but as the person in charge of the project and the initiator of the party, he couldn't run away from the basic entertainment. Unceremoniously squeezed between Xia Yu and Wang Pengyu, Yuan Limin said with great interest: "Before I read the news, it was also this afternoon that the American hypersonic vehicle exploded and crashed during a test flight. ”

"Hypersonic vehicles?" Xia Yu and the others were stunned for a moment, isn't the aerospace plane that he and others are testing now a kind of hypersonic vehicle?

"Yes." Yuan Limin said with a heavy expression: "Fortunately, it was a drone, and there were no casualties." ”

"Come on, don't pretend, you're obviously gloating." Xia Yu slapped his face unceremoniously, the way he and Yuan Limin get along is very strange, the age difference between the two is very big, there should be no common topic but they can talk together, whether it is work or life, or even some boring topics without oil and salt, the two of them can talk to each other for a long time.

Obviously, he is often half-killed by Xia Yu's poisonous tongue, Yuan Limin always likes to go up, if he can find an opportunity to choke Xia Yu half to death in turn, he will definitely not hesitate, and immediately kill him with joy. The old and the young are getting along in this inexplicable way, becoming more and more familiar and closer. In Xia Yu's opinion, Yuan Limin is like the grandfather who always likes to tease himself, but has already passed away, which is both cute and annoying.

"Speaking of crashes." Wu Degao said on the side: "More than two years ago, it seems that the news didn't say that our Chang'e-4 lunar exploration satellite also crashed for some reason?" ”

"Oh, I know that." Yuan Limin said: "Although the specific cause of the crash is not yet certain, according to the information sent back by Chang'e-4 at the end, it is estimated that it is very likely that it was hit by a meteorite or something like that." Therefore, after a while, in order to fill the vacancy of the lunar exploration program, the Xichang Satellite Launch Center will continue to send Chang'e-5 to it. ”

Speaking of this topic, Xia Yu's heart moved, the starry sky said that the wreckage of the Ilspacecraft fell on the surface of the moon, and the time of the crash of Chang'e-4 is basically the same as the time when the starry sky reached the earth, maybe it was crashed by the spacecraft of the Il-people, I don't know if the wreckage of the Il-spacecraft can be found after Chang'e-5 is sent to the lunar orbit this time? Xia Yu thought to himself.

"Can we watch the satellite when it launches?" Wang Pengyu asked curiously, he hadn't actually seen the rocket launch process.

Yuan Limin smiled when he heard this, and replied: "If it doesn't conflict with the work here, I can give you an invitation letter." ”

"That's really nice." I didn't expect to have the opportunity to see the real scene of the rocket launch, Wang Pengyu was very happy, he was not worried that the time would conflict with the work here. Shenlong is making its first flight today, and just processing the number of jù that has been collected is enough for the scientific researchers to be busy, and he is just a test pilot, and there are not too many places that need to be used by himself.

"In that case, it's better for us to go with the test flight team at that time." Xia Yu mentioned that his eyes looked at Yuan Limin, and this kind of action had to be approved by Yuan Limin.

"Well, that's fine." Yuan Limin obviously didn't want to ruin their interest, nodded and said: "Then I will arrange it then, but it seems that in the same period, the Shenzhou manned spacecraft also has a plan to go into space, which one are you going to see?" ”

After this small celebration banquet, Xia Yu returned to the dormitory, I have to say that the dormitory conditions arranged by the institute are much better, although it is a single dormitory in name, but it is actually an apartment building with three bedrooms, two living rooms, one kitchen and two bathrooms. The decoration style is simple and exquisite, the refrigerator, TV, computer and other furniture are very complete, and even the bedding and basic daily necessities are distributed at the same time as moving in, so you don't need to worry about life at all.

After taking a hot bath comfortably, Xia Yu hung up the phone with his parents, and then made a phone call porridge with Ye Zi, and then he was about to enter the consciousness space, and he will simulate today's flight again in the consciousness space, and strengthen his control and other behaviors during the flight. If necessary, Xia Yu will also let the starry sky set up some possible emergencies to deal with himself, which is almost an inevitable behavior of Xia Yu after every flight.

In the following period of time, the development progress of the Shenlong was carried out step by step, although there were also lift-off tests, but the flight distance and time were relatively short, and there were no plans to start the scramjet engine during the test mission. Even then, there have been two cases of mid-air distress.

One was when the electrical equipment broke down and the guide caught fire in the air, and the other was when two of the three turbofan engines stopped in the air. Despite all the difficulties, the Shenlong still ushered in the second test flight mission of starting the scramjet engine in many design modifications. This time, a hypersonic flight will be carried out at an altitude of 28 kilometers above the ground, which is a very dangerous test flight activity, because at this altitude Shenlong will try to push the speed of the vehicle to about Mach 12, excluding launch vehicles, which is the first time in the world for a manned spacecraft alone.

It sounds great, it seems to be the world's leading level, but in fact the benefits are just as great as the risks. Because of the hypersonic nature of aerospace aircraft, once there is a danger such as structural damage in the air, the huge air resistance can tear the entire aircraft apart in an instant, and it is natural to imagine what will happen to the pilot who bears the brunt.

But the progress of mankind is inseparable from the efforts of those adventurers. The current Xia Yu, isn't he one of these adventurers?