Highest rocket shortest process! Changqi A successfully launched the
At 21:18 on September 13, at China's Wenchang Space Launch Site, the Long March 7A carrier rocket developed by the First Academy of Aerospace Science and Technology Group was ignited and lifted off, successfully sending the "Zhongxing 1E" satellite into the predetermined orbit. The satellite can provide users with high-quality communication radio and television services.
The Changqi A rocket is the main configuration of my country's new generation of medium-sized launch vehicles. It has the launch capability of one arrow and one satellite and one arrow and two main satellites. The carrying capacity of the geosynchronous transfer orbit is not less than 7 tons, which fills the geosynchronous transfer orbit of my country's launch vehicle. 5.5 to 7 ton carrying capacity blank. According to Wei Yuanming, the chief designer of the Changqi A rocket, the Chang 7 A Yao-5 rocket for this mission adopts a configuration with a fairing diameter of 4.2 meters and a height of 60.1 meters. It is one of the tallest rockets in the Long March family.
It is worth mentioning that the Changqi A rocket, as my country's first bundled rocket that adopts the booster and core-level cluster separation technology, reduces one separation link compared with the previous rocket, which makes the rocket bundled connecting rod structure more simplified. At the same time, the cluster separation also reduces the drop area of a booster, and the entire combination is in one drop area, which is more conducive to controlling the drop area of rocket debris.
The second highlight of this mission is that the process has been greatly reduced, and the work efficiency has been greatly improved. The model team has shortened the launch technology process from 32 days to 26 days by optimizing the process sequence, parallel work, and combined testing.
Among them, the final assembly mode was changed from "one-stop" to "on-demand and hoisting", and the final assembly time was reduced by 3 days; the tests with similar status were merged into "similar items" once, and the test time was reduced by 2 days; "serial to parallel" , 1 day is saved for the transition and launch area work. 6 days doesn`t sound like a long time, but for rocket launch, every task is a race against time, and every day that the measurement and launch cycle is reduced is a big step forward in improving the efficiency of rocket launch.
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