"The test flight of the J-31 is over, and you plan to go directly to that project next?" At the banquet, Wang Pengyu approached Xia Yu and asked, although the level is not high, but there are still some confidentiality requirements for the relevant content, so his voice is not very loud, and the specific content is not spoken.

"Well, almost." Xia Yu nodded and replied: "After the handover here is clear, I will call Lao Yuan, although Lao Yuan said that if there is no problem, I belong to the test pilot, but I still have to go through the procedures that should be taken." ”

Wang Pengyu nodded, cheered Xia Yu up, and said: "With your physical condition, the selection of astronauts can be passed, I believe you have no problem, besides, they have all come to you in person, I'm afraid the requirements for you will be looser." ”

"Thank you for your good words." Xia Yu smiled and said, "I'm afraid it's impossible to be relaxed, and it is estimated that the requirements will be stricter." You also know what his project is, a national-level project, even if you want to go through the back door, it depends on whether your level is up to the level of going through the back door. ”

"That's right." Wang Pengyu agreed with Xia Yu's opinion and said: "I just don't know if I can also participate in this project if I work hard." Xia Yu glanced at him when he heard this, although Yuan Limin faintly wanted to find about two test pilots from the Air Force that day, but he didn't expect Wang Pengyu to take the initiative to go, and after a while, Xia Yu said: "I'll help you ask over there, if there is a chance, I will find a way." ”

Wang Pengyu was overjoyed, and this was what he wanted. According to Yuan Limin, because it is an unprecedented manned aerospace aircraft, it is necessary for the Air Force test pilots to test the aerospace aircraft in order to be more secure, after all, in terms of crisis management, the Air Force test pilots have much more experience than astronauts.

However, because of the very high requirements for system knowledge, the test pilots of the general space vehicles are directly selected from the astronauts, and in most cases, there is no need to go to the Air Force test flight unit to select test pilots. Yuan Limin is also an exception this time, if it weren't for the fact that he happened to be the host of that project, he wouldn't have the authority to find people outside the aerospace department to participate in it. Despite this, when he came to find Xia Yu, his upper-level leader Cao Yanhua had to follow. For researchers like them, who are often busy in the dark, it's not just time that is lost on this trip. Especially when the progress of research and development is accelerating recently, it is a luxury to put down work and come to meet someone thousands of miles away.

The joyous celebration banquet was over, and most of the people were drunk except for a few test pilots and a few other ground personnel who didn't drink. can still walk, three or five people hooked their shoulders and walked back all the way laughing and talking, and those who drank too much also helped to call a car to the door.

Looking up at the moon hanging high in the night sky, Xia Yu took a deep breath and slowly exhaled it. The place chosen for the celebration banquet was not far from the base, and a few miles away was used as a diet exercise after dinner, and I slowly walked back to the dormitory.

After returning to the dormitory and taking a shower, Xia Yu turned on the computer and looked up the keyword aerospace aircraft, and many links about aerospace aircraft suddenly appeared on the page, Xia Yu selectively opened them one by one and browsed them.

Aerospace aircraft is the abbreviation of aerospace aircraft, because its characteristic is that it can take off on the ground like an ordinary aircraft, and it must be able to enter outer space to perform tasks or operations without using rocket vehicles.

First of all, the most basic is the power configuration, at present, there is no engine that can be used in such a polarized environment, so it is necessary to use a combined power configuration. Generally speaking, it is more likely to use the air turbofan engine plus the scramjet engine and the rocket engine to match the three types of engines, and the air turbofan engine is used for flat takeoff, and when the speed exceeds Mach 2, the scramjet engine can be turned on.

The scramjet engine allows the aircraft to fly at a speed of nearly 30,000 kilometers per hour in the atmosphere 60 kilometers above the ground, and finally the rocket engine ignites, and the aircraft can rush out of the atmosphere and wander in outer space.

However, the combination of engines inevitably complicates the structure of the aerospace aircraft, and things that are too complex are usually always worrying in terms of reliability, and the pressure on repair and maintenance can be very high. In addition, there are still many problems in the development of scramjet engines, so until now, manned aerospace aircraft in the real sense have not actually been born.

Although the X-37B has flown in outer space and successfully returned to the earth, it does not have the ability to take off on a flat ground, and it needs a large aircraft to carry or a rocket to take off, because the shape is basically similar to the space shuttle, so it is also called a mini space shuttle.

The X-37B is not strictly an aerospace aircraft, it can only be regarded as an unmanned low-orbit vehicle at best, but even so, the significance of the X-37B is very huge. Although it cannot conduct effective outer space operations because it can only fly in low orbits, it has the ability to attack satellites and other spacecraft. In addition, because it can fly freely in outer space, it is not comparable to satellites in terms of convenience and speed in reconnaissance, and in addition, it can carry missiles, so the threat is naturally self-evident.

The United States has never given up the study of aerospace aircraft, and China, as a rising power, attaches no less importance to aerospace science and technology than the United States, so it has also developed its own aerospace vehicle, which is a national project together with Shenzhou, Shenwei and Shenguang.

The code name of the Chinese aerospace aircraft is, Shenlong.

But Shenlong, like X-37B, cannot be called an aerospace aircraft, and it is also the same as X-37B, it is an unmanned aerospace vehicle that cannot take off on a flat ground, they are all in the range of technical verification aircraft, and the last time it was in the test flight, it was still hung under the belly of the H-6 and took off, and its appearance looks more like a large missile than the space shuttle.

But in any case, the test flight of China's aerospace vehicle also shows that China also has the means to strike with global coverage. Speeds above Mach 20 are unlikely to be intercepted. The development of aerospace aircraft is not only the development of a more economical space program, but also a huge deterrent in itself, especially when most countries simply do not have the huge financial and technological capacity to develop aerospace aircraft.