Shenzhou spaceship Information-Introduction of Shenzhou VII

Shenzhou VII was successfully launched on 2 1: 10: 04 on September 25th, 2008. The pilots of Shenzhou VII are Zhai Zhigang, Liu Boming and Jing Haipeng. "Shenzhou V" and "Shenzhou VI" were launched in the middle and late June of 10, and the launch of Shenzhou VII will be advanced to the end of September. According to experts, there are many suitable launch windows in September and 10. However, since Shenzhou VII will carry out the spacewalk mission, the angle of the sun when taking off at the end of September is more suitable for astronauts' extravehicular activities, which can make the spacecraft see the sun in the shortest time and ensure that the astronauts have sunshine when they leave the cabin. The best meteorological conditions for launching manned space flight mainly include: no precipitation, ground wind speed less than 8 meters per second and horizontal visibility more than 20 kilometers; From 8 hours before launch to 1 hour after launch, there is no lightning activity within 30 km to 40 km of the site; The maximum wind speed in the airspace 3 km to 18 km from the launch site of the ship and arrow is less than 70 meters per second, and there should be no lightning for 9 hours before and after launch. Huang Chunping said that whether it can be launched as scheduled depends mainly on the weather at the launch site at that time. Light rain and temperature generally do not affect the normal launch of the spacecraft, but strong wind may cause the spacecraft to delay the launch, because the wind speed exceeds the bearing capacity of the rocket and may change its flight direction. Huang Chunping also revealed that the astronauts' spacewalk will be carried out after the spacecraft enters orbit and orbits the earth for more than five times. Zou Dewei, captain of the medical rescue team at the main landing site in Inner Mongolia and president of the 306th Hospital of the People's Liberation Army, said that "Shenzhou VII" is different from "Shenzhou VI" and "Shenzhou V", and the search and rescue and medical security of the main landing site will rely on helicopters instead of ground search and rescue. During the "Shenzhou V" and "Shenzhou VI" periods, the 306 Hospital of the People's Liberation Army has been serving as the medical rescue mission for astronauts at the main landing site of China manned space flight. On August 29th, the expert medical team of 306 Hospital who carried out the "Shenzhou VII" mission went to Siziwangqi, Inner Mongolia. At present, this medical rescue team composed of 16 top experts is conducting medical rescue drills near the main landing site. In addition, the biggest difference between the medical rescue of the main landing site of Shenzhou VII and Shenzhou V and Shenzhou VI is that the air search and rescue platform composed of helicopters will be used instead of the ground platform. According to Dean Zou, the main landing site of Shenzhou VII is near Siziwangqi, Inner Mongolia, which is the latitude and longitude coordinate range centered on the theoretical landing site, with a length of 100 km and a width of more than 80 km. If ground vehicles are used for search and rescue, the speed will be slower, so the search and rescue mission of Shenzhou VII will be mainly completed by helicopters. This year, more than 10 helicopters carried out search and rescue and medical missions. In addition to the command aircraft, there are six helicopters for search and rescue, one helicopter for medical supervision and medical insurance 1 helicopter, and three helicopters will be used by medical rescue teams. Academician Qi Faren believes that human beings go to heaven not for tourism, but for the research, development and utilization of space environment. In the past, Yang Liwei was just the first step to give it a try. It will take many people and many days to finish this task. For example, to assemble a space station or repair a satellite, people must get out of the cabin, and it takes at least two people to get out of the cabin. In the future, I will go to the space station by means of transportation, dock with the space station, and pick up the people inside after opening the door. From abroad, they spent a lot of experiments to do this. Now, according to our plan, "Shenzhou VII" hopes that people can get out of the cabin, which is called spacewalk by ordinary people. "Out of the cabin, of course. How far is it from the cabin? It can also be closer or farther. " Academician Qi Faren said that the next step in China is to solve the rendezvous and docking, and there must be at least three people in the rendezvous and docking. Therefore, our spacecraft should have this ability: three people stay in the sky for seven days, and they can get 300 kilograms when they go up, and they can get 100 kilograms when they come back. If we succeed this time, we don't need two people to try for a few more days. Then we will leave the cabin next time. Academician Qi Faren believes that Shenzhou VII, who is about to leave the capsule, must solve two major problems on the basis of Shenzhou VI. Now astronauts have a sealed cabin in which they wear spacesuits. Without this cabin, there would be no air, so the spacesuit itself must be able to supply oxygen. The second is that when there is no temperature control, the spacesuit can guarantee its normal temperature, so this spacesuit is equivalent to a small sealed cabin, which is quite complicated. A more advanced spacesuit can also be equipped with an engine and leave a little fire, which is equivalent to a small spaceship. These conditions are needed to leave the cabin. Academician Qi Faren said that in the future, we should have airlock cabins on board. People should put on spacesuits and go in, close the door and open the outside door. If you open the door, the air will be exhausted, so there is an airlock. "I'm just talking about two main things. As astronauts, we have extravehicular spacesuits. As a spaceship, we must have an airlock cabin to ensure that there is an atmospheric pressure in the original cabin. " ?