The Science Fiction World of Xueba - Chapter 495

Pang Xuelin did not care about Liu Xuesong’s indifference.

The most important reason why he went to observe the first launch mission of the 921 rocket this time was that the 921 rocket was equipped with a 4: 1 reduction ratio verification machine for the spacecraft used in the future electromagnetic aerospace launch system.

Although it is a 10: 1 reduction ratio verification machine, in fact, this space plane has perfect electronic equipment, power system and space life support system, and the total mass has reached 40 tons. With ten tons of fuel, this miniature space plane can be used to perform various tasks in outer space.

As for the 921 rocket, it is regarded as the Chinese version of the heavy falcon.

The rocket adopts a three-stage and half-CBC configuration. It consists of a core-stage rocket and two boosters with a total of 21 YF-100K pumps and a pendulum liquid oxygen kerosene engine. It can produce 2700 tons of thrust and the maximum take-off weight of the rocket is about 2200. Ton, core level 2 is two YF-100K high-altitude liquid oxygen kerosene engines, core level 3 is 3 YF-75D hydrogen-oxygen engines, and the orbiting speed can reach 10.9 km / s (about 32 Mach).

This is a national heavy weapon born for manned moon landing. Because of the manned attributes of this type of rocket plus the proposal and promotion of the manned space engineering office, it was crowned by the manned space engineering code 921 Named “921 Rocket”.

Although with the establishment of the electromagnetic catapult space launch system, the space system discontinued the Long March IX project, but the 921 rocket has been retained.

As long as the electromagnetic catapult space launch system is successful, then this rocket is likely to become the swan song of China’s chemical power rocket.

“Professor Pang, old Liu is a bit stubborn, but he has no bad thoughts, don’t mind it.”

Pang Xuelin and Tao Yongchang took a car, and as soon as they got on, Tao Yongchang said quickly.

When I greeted Pang Xuelin just now, Liu Xuesong’s performance was not enthusiastic, and even a little bit resisted.

Although Liu Xuesong is a big cow in the field of launch vehicles, Pang Xuelin is an iconic figure in China’s current academic world. Tao Yongchang naturally does not want Pang Xuelin to have a bad impression of Liu Xuesong.

Pang Xuelin smiled and said, “General Tao, don’t worry, Academician Liu has normal views on me. After all, the electromagnetic catapult space launch system is considered to have robbed the carrier’s rice bowl. I can’t tell you this time. I won’t let you Hard to do in the middle. “

“That’s good.”

Tao Yongchang was relieved immediately.

Haikou to Wenchang is just over 60 kilometers, and it takes less than an hour to drive.

When he arrived at the Wenchang Space Launch Site, Pang Xuelin first rested at the hotel where he stayed, and in the afternoon, accompanied by Tao Yongchang, visited the Wenchang Space Launch Center.

Space launch is closely related to the latitude of the launch site. The closer it is to the equator and the lower the latitude, the more it can launch satellites with the help of the greater linear velocity close to the equator and the centrifugal phenomenon generated by inertia, so the lower the energy consumption required , The faster the same fuel can be achieved.

The geographic latitudes of the Jiuquan, Taiyuan, and Xichang launch centers are 41 °, 38 °, and 28 ° north latitude, respectively. The geographic latitude of Wenchang is 19 °, which is lower than that of the other three launch sites.

Hainan Island has the lowest land latitude in China and the closest to the equator, so it has become the best location for building a space launch site.

It is estimated that the launch of the same rocket in Wenchang can increase the carrying capacity by 7% to 15%. The launch of the same type of rocket in Wenchang can increase the payload of the launch vehicle by more than 300 kilograms, and the saved star fuel can also increase the spacecraft. Accuracy into orbit, prolong the service life of spacecraft for 1 to 2 years.

As early as the 1970s, China planned to build a space launch site on Hainan Island. However, due to China ’s more complex international situation, China had to set up its space launch site in a more secretive and safer place for reasons of national defense and security. Safe inland areas.

After entering the 21st century, the international situation has changed. In order to adapt to the sustainable development of China’s aerospace industry and meet the needs of the launch missions of new generation launch vehicles and new spacecrafts, China officially started the construction of Wenchang Space Launch Center.

In 2014, the Wenchang Space Launch Center was officially completed and became China’s most advanced space launch center, mainly used to launch the Long March 5 series and the Long March 7 series launch vehicles.

A new generation of 921 rocket was also placed at the Wenchang Space Launch Center.

The reason for choosing here is simple.

Whether it is the 921 rocket or the Long March V series rocket, the core diameter has reached five meters.

In China’s land transportation, the maximum width of goods passing through the tunnel is 3.35 meters.

So 3.35 meters became the standard diameter of the core stage of the Long March 2, 3, and 4 launch vehicles.

It was not until the completion of the Wenchang Space Launch Center that the launch vehicle could reach Wenchang directly by sea. China ’s launch vehicle broke the 3.35 meter diameter limit.

Under the launch tower of the Space Center, Tao Yongchang is accompanying Pang Xuelin to visit this giant behemoth that will be launched tomorrow.

“This is the 921 Rocket!”

Under the towering tower, Pang Xuelin looked up at the super rocket with a height of 90 meters in front of him.

On the white arrow body, the words China Aerospace are particularly striking.

The 921 rocket uses a CBC configuration main core stage and two boosters with a diameter of up to five meters, a smooth rod main core stage takeoff thrust of 840 tons, and three CBC module configurations with a total takeoff thrust of 2520 tons.

The space plane with a fuel mass of more than fifty tons is located on the top of the rocket, completely covered by the fairing.

“Professor Pang, if this reduction ratio reaches 4: 1, the test of the space plane is successful, then we will formally start the research and development of the electromagnetic catapult version of the space plane. Do you say we can really succeed?

Looking at the towering 921 rocket, Pang Xuelin smiled and said, “General Tao, don’t worry, I’m here!”

Tao Yongchang and Pang Xuelin stared at each other for a while ~ www.mtlnovel.com ~ Then they laughed and said, “Professor Pang, I believe you will not let us down.”

After visiting the launch tower, Pang Xuelin went to meet the staff who participated in the launch mission.

Most of these astronauts are under the age of thirty-five. When they saw Pang Xuelin, they seemed to see big stars one by one, and Pang Xuelin was surrounded by water.

Compared to the top executives in the aerospace industry, they only have a pure admiration for Pang Xuelin.

Some people even took small books and asked Pang Xuelin to sign.

That night, Tao Yongchang also arranged a lively dinner to welcome Pang Xuelin. .

Because of the mission period, everyone used drinks instead of alcohol at the banquet.

Liu Xuesong just chatted with Pang Xuelin while clinking glasses. Most of the time was cold. Pang Xuelin didn’t care much.

txt download address:

phone-reading: