Long March 8 sent five satellites into the scheduled track.Chief Commander Xiao Yun pointed out that China now has a strong demand for the launch of Internet satellites, low -orbit mobile, and solar simultaneous track satellites. It is expected that during the "14th Five -Year Plan" (2021 to 2025)50%to 60%of the launch satellite, so the Long March 8 rocket is urgently needed.
Yu Zeyuan Beijing Report
The China Long March 8 Lauding Rockets yesterday at the Wenchang Aerospace launcher in Hainan in Hainan's Wenchang Aerospace launched by "one arrow and five stars", five satellites were sent to the scheduled track.Long March 8 is the new generation of medium -sized carrier rockets in China. It can transfer the carrier of the China Load Rockets to the solar of the solar (SSO) from 3 tons to 4.5 tons.
Earlier, the carrying capacity of the Long March Rocket can only send 3 tons of valid load to the Sun synchronous orbit.Xiao Yun, the chief commander of the Long March 8, told the media yesterday that the successful launch of the Long March 8 is not only the improvement of the Long March series of rocket carrying capacity. For effective loads such as satellites, it is also an upgrade of the platform.The development of track satellites meets the needs of high -density launch tasks in mid -to -medium and low -oriented in the future.
Xiao Yun said that China now has a strong demand for Internet satellites, low -orbit mobile, and solar synchronous orbit satellites. It is expected that during the "14th Five -Year Plan" (2021 to 2025), the Sun Synchronous Rail Satellite will occupy ChinaIn the future, 50%to 60%of the satellites are launched, so the Long March 8 rocket is urgently needed.
Sun synchronization track can provide satellite observations with more stable solar incident conditions.The satellites running on the solar simultaneous track can observe cloud layers and ground targets at the same time and light conditions.Therefore, meteorological satellites, global resource satellites, and military reconnaissance satellites are generally selected for the sun synchronization track to obtain clearer ground target images.
According to media reports such as Science and Technology Daily, in order to be able to occupy a favorable position in the business market, the development team conducted a low -cost design of the Long March 8 electrical and structure.Recycling design, strive to achieve reusable use.
In this flight mission, the Long March 8 liquid engine implemented a throttling control. This is the first time that the engine thrust adjustment technology has achieved engineering applications in China.This technology not only greatly enhances the overall design optimization ability and task adaptation ability of the Rockets, but its first application also conducts preliminary technical verification for subsequent related technologies and lays the foundation for China's reuse of the development of carrier rockets.
Recycling Lae Rockets
China takes a new step
At present, the Falcon 9 of the American Space X company has achieved the goal of vertical recycling and reuse of the Rockets, and even the Rockets that are recycled as many as seven times, which greatly reduces the launch of conventional configuration rockets.cost.
The successful launch of the Long March 8 Rockets marked a new step in China's recycling carrier rocket.However, the Long March 8 must be recovered and reused by the rocket, and it must be launched multiple times to gradually verify various technologies.
In addition, the Chinese scientific research team has designed the "Two Places and One Vertical" launch mode for the Long March 8, that is, the horizontal assembly, the overall transportation of the horizontal state, and the vertical reincarnation of the star cover combination.It is expected that around 2022, the Long March 8 will achieve "two flat and one hanging" launch.At that time, the launch area will no longer need a large scale and complex tower, which will significantly reduce the cost of launch and increase the commercial value of the Long March 8 Rockets.
