Long March family "highest" long seven A successfully launched star 1E satellite

At 21:18 on September 13th, China Wenchang Aerospace launches, China Lauding Rocket Technology Research Institute (hereinafter referred to as the "Rocket Institute"), which is affiliated to China Aerospace Technology Group Co., Ltd. (hereinafter referred to as the "Rocket Institute"), seized the Long March 7 of the Long March VIA (referred to as "" "Long Seven Rockets") ignited and lift off, and successfully sent the middle star 1E satellite into the scheduled track. The satellite provides users with high -quality communication radio and television services. This launch is the 437th launch of the Long March series of launch vehicles.

Long Qi A Rockets is the main structure of my country's new generation of medium -sized carrier rockets. It is based on the Long March VII Lae Rockets and the Long March 3 -Lange Rockets. Load rockets, the landing capacity of the Earth synchronous transfer rails is not less than 7 tons, filling the gap of 5.5 to 7 tons of carrier capacity of the Lange Rocket Earth Synchronous Transfer Rockets in my country. One star and one arrow double master star launch ability.

Wei Yuanming, chief designer of the Long Seven Rockets, introduced that the long -seven A long rockets of the long seven -A -long rockets of this task uses a rectification cover of 4.2 meters in diameter, the whole arrow height is 60.1 meters, and the Yao II Rockets launched on March 12, 2021 Highly consistent.

The long -seven A rocket, as the first type of binding rockets that use the booster and core first beam separation technology in my country. Compared with the generally separated the aid machine and then separate the core level, it reduces one separation link. The link structure is more simplified. At the same time, the beam separation also reduces a helper landing area. The entire combination is in a landing area, which is more conducive to controlling the rocket wreckage landing area.

This time is the fourth launch task for the long seven -A rocket. Wei Yuanming introduced that the model team has conducted a number of optimization improvements on rocket technology design. Under the premise of ensuring test coverage, the launch technology process has been reduced from 32 days to 26 days by optimizing the process order, parallel work, and combined testing. According to the overall development trend of high -track satellites and the urgent needs of high -track satellites to configure large -sized antennas, the long -seven A rocket will also develop a new configuration of 5.2 meters rectification in the future to further improve the rocket's task adaptability.

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Author: Shen Zhushi Correspondent Gao Shi Qi Sang Qian Tu/Xiao Guojun Jiang Wenbo

Edit: Zhao Zhengnan

Editor in charge: Fan Bing

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