Shenzhou VII manned spacecraft is one of China shenzhou spaceship series, which was launched by Long March II F rocket. This is the third manned spacecraft in China. Break through and master the technology related to extravehicular activities. The scientific research units of Shenzhou VII manned spacecraft are China Academy of Space Technology and Shanghai Academy of Space Technology under China Aerospace Science and Technology Corporation. The scientific research unit of the Long March II F carrier rocket is the China Academy of Launch Vehicle Technology under China Aerospace Science and Technology Corporation.

Shenzhou VII spacecraft consists of orbital module, return module and propulsion module.

The total length of Shenzhou VII spacecraft is 9. 19 meters, which consists of orbital module, return module and propulsion module. Shenzhou VII manned spacecraft weighs 12 tons. The combination of Long March 2F carrier rocket and escape tower is as high as 58.3 meters. ..

Orbital module-as the working and living module of astronauts, and the airlock module used when leaving the module. Equipped with pressure relief control, extravehicular spacesuit support and other functions. There are living facilities for astronauts. The top of the orbital module is equipped with a flying satellite and five recompression gas cylinders. There is no tracking function.

Return module-the module for astronauts to return to earth, which is connected with the orbital module. Equipped with parachutes and anti-thrust rockets to land and achieve a soft landing.

Propulsion cabin-equipped with propulsion system, partial power supply, environmental control and communication system, and a pair of solar panels.

Shenzhou VII spacecraft carries three astronauts, namely Zhai Zhigang (commander), Liu Boming and Jing Haipeng. The astronauts of the alternate echelon of Shenzhou VII spacecraft are Chen Quan (commander), Fei and Nie Haisheng. The main task is to carry out the first extravehicular activity of China astronauts, and at the same time carry out space science and technology experiments such as satellite accompanying flight and satellite data relay.

On the afternoon of September 24th, 2008 14: 30, at the press conference of "Shenzhou VII" manned space mission headquarters of Jiuquan Satellite Launch Center, the "Shenzhou VII" manned space mission headquarters announced that it would be launched directly from 2 1: 07 to 22: 27 on September 25th, 2008 for manned space flight. At that time, China astronauts will leave the cabin for spacewalk for the first time.

Zhai Zhigang's Outbound Action

At 2 1: 00 and10: 04.988ms Beijing time on September 25th, 2008, it was launched by the Long March 2F rocket. On September 27th, 2008 16: 30, Jing Haipeng stayed in the return module, and Zhai Zhigang (commander) and Liu Boming entered the orbital module of Shenzhou VII manned spacecraft in Tian Fei extravehicular spacesuit made in China and Yinghai extravehicular spacesuit made in Russia respectively, which is also an airlock module. Zhai Zhigang's extravehicular operation, with the help of the orbital module (Liu Boming's head and hands were separated), Liu Boming realized the first astronaut spacewalk in China's history, making China the third country capable of sending astronauts into space and carrying out spacewalks. On September 28th, 2008 17: 37 Beijing time, Shenzhou VII landed successfully in Siziwangqi, Inner Mongolia, China.

Starting from Shenzhou VII, China entered the second manned spaceflight project. At this stage, the scientific goals of astronauts' extravehicular walking and space rendezvous and docking will be realized one after another. All the launching tasks of the second phase project are undertaken by the Long March 2F rocket. (rocket model)

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