On October 20, the Long March-7A made its maiden flight and sent three Laurel series resource exploration satellites to lunar orbit.

And its overall recycling method, which looks bulky but is actually ingenious, and is not too heavy, has been a complete success.

The first and a half successful landings of the Long March 7A at the landing site of the Qiongzhou Cosmodrome compared to the Long March 6 are much more stable in attitude and smooth descent due to its larger weight and size.

The launch of CCAV (ChinaCentrolAudioVideo) was still live, and the hostess of the news channel was as unprofessional as ever, shouting about the recovery process of the Long March 7, which successfully raised the expectations of the audience.

In fact, the conditions of the Qiongzhou Cosmodrome are quite superior, although it is 19 degrees north latitude instead of the equatorial line, it is still much better than Aramco's Cape Caravral, which has a latitude of 28 degrees.

The reason why Lao Ma is keen on offshore recycling is that for the Falcon 9, the offshore recovery distance is shorter, which can recover less recycled fuel at lower latitudes, thereby increasing capacity.

The Falcon 9 has a LEO capacity of 13.7 tons on land and 19.4 tons of LEO at sea, which is a huge difference.

Qiongzhou does not have this trouble, this dimension is not much different from the equatorial launch capacity, land recovery is enough, and then there is little point in going to sea to recover, but Xinyuan-1 has been carried out several times as a technical reserve.

The space agency is extremely excited about the success of this recovery, with the Long March 7 (recycling) LEO capacity of 25 tons, GTO capacity of 14 tons, lunar transfer orbit capacity of 9.8 tons, and Mars orbit capacity of 4.4 tons.

Such a capacity can already be used as a heavy-duty rocket, which can hit manned spacecraft, space stations, large cargo spacecraft, large lunar probes, and large Mars probes, and the price is still low, only one-seventh of the original development of the old Long March 5B.

Compared with the Long March 6, the Long March 7 is the space agency's official ability to launch payloads into space in large quantities at a low cost, and the internal launch cost is at least half cheaper than that of the Falcon 9.

The entire Long March 7 was collectively praised, and at the same time, the chief engineer Feng Ruixing and another researcher who designed the arrow body (first-class and a half) were directly booked for next year's space training quota as a sign of encouragement.

It's just that the Sixth Academy has been under a little pressure, because the success of the Long March 7A is due to the H80 of the second stage and the YF75 hydrogen-oxygen engine of the third stage, if it is the original YF115, it is absolutely not good, and the third stage is YF75 OK.

There is only 1 H80, and if we want to continue to maintain a recyclable LEO capacity of 25 tons instead of being forced to return to YF115 to 20 tons for the sake of stability, we must have the Sixth House make YF77 particularly stable.

After all, YF77 has already appeared in front of the people of the whole country, and the Long March 7 and Long March 10 must be manned, and the stability is best to approach 100% infinitely.

The Long March 8 has actually been built, but its launch mission is mainly high-orbit and sun-synchronous orbit, and the satellite will wait until next year, so it will be placed there for the time being.

……

"Mr. Guo? What's your mood right now? ”

"Happy, I'm very happy!"

In the crew compartment of the Unity, Guo Shen connected with the TV host in the capital and shouted out his feelings.

The time for the interview connection is not too good, it is now 1 hour before the launch of the Unity, and the ground found that because the interior has been maintained, there is a little peculiar smell in the crew cabin, and it is being ventilated at full power, and the whirring noise makes the microphone a little noisy.

But even if you can't hear Guo Shen's words clearly, it doesn't matter, at this time, the latter's mood is overflowing, and his laughter is almost wrinkled.

Because he was wearing a jumpsuit, Guo Shen's Mediterranean head shape was also perfectly covered, and he looked a little handsome.

Zhou Qingfeng looked enviously at the internal image of the Unity broadcast live on the screen in the square, imagining that he was also sitting inside.

And next to him, Zhou Rui did not pay attention to his grandson as before, but stared intently at his mobile phone, laughing uncontrollably from time to time.

Zhou Qingfeng's eyes glanced and saw the middle-aged woman in the picture whose body was swaying, planting a seed of not so serious in his growing heart.

Look around, many people are also smirking with their heads down, and the BGM that has exploded in recent days can be felt from the rhythm of the external release without listening carefully.

More than a month after it was launched, under a more powerful promotion, Douyin is even more popular than the original world line.

The charm of short videos is unprecedented, and with the beginning of the 4G era, traffic has found its true home.

After Zhang Yingming himself opened an account to bring goods to the Jingwei satellite network, the number of video views exceeded 10 million in three days, and the fans reached millions, which is beyond the reach of other social platforms.

Xinyuan Aerospace Power is now breaking through 5 million fans, in addition to being the first official user to settle in, there is also a very different content output, many small videos of life in the Tiangong space station are also posted here, which can not be seen in other places.

But although Zhou Rui himself has been addicted to short videos, he is clearly aware of the strong addiction and strictly restricts Zhou Qingfeng from watching short videos.

In order to find something for Zhou Qingfeng to do and not worry about short videos all day, he took advantage of the fact that junior high school was not so busy, so he took one day off and three days on weekends to bring his grandson to the Zhuhai Air Show to see technology products.

"Grandpa? Green light, green light! ”

"Hey...... Uh, oh, let's go. ”

Zhou Rui clicked the red heart twice to turn off the screen, led Zhou Qingfeng to walk quickly across the road, and arrived at the exhibition hall a few hundred meters away.

There was a sudden loud noise in the sky, and Zhou Qingfeng subconsciously raised his head and saw two silver-gray fighters passing at low speed, passing through the top of the war zone and flying into the distance.

This year, the J-20 officially entered service and announced in advance that it will have a demonstration flight at this air show, the opening is tomorrow, and now it is obviously a simple dress rehearsal.

Many passers-by shouted "wow" and "wow" and picked up their mobile phones to record short videos, but Zhou Qingfeng and Zhou Rui were not among them, as Rongcheng people, the yellow-skinned gray-skinned J-20 has long been used to flying overhead all day long, and it has been 5 years since the first flight, and local residents can see it when they look up.

"Qingfeng, do you want to drive the J-20 when you grow up?"

Zhou Qingfeng: "No, I want to be an astronaut, I want to fly a space shuttle and land on Mars!" ”

"If you enter the Air Force, you will have the opportunity to be an astronaut, and the astronaut brigade will have a little star for you."

"However, there are many new and far-flung flights."

“……”

It's a simple reason, but Zhou Rui has to admit that this temptation is indeed very strong.

According to public information, it can be known that the cost of flying inside Xinyuan is very low, so it can continue to send people into space.

There are rumors at Southern University of Aeronautics and Astronautics that the first batch of students established by the School of Aeronautics and Astronautics, that is, more than 200 students who have changed majors, will graduate in 2017, and the top 100 students with excellent professional results and flight school performance will complete the graduation ceremony in space.

I don't know if it's true or not, but it does sound scary, sending 100 people to space, Xinyuan has the strength.

(End of chapter)