en.Wedoany.com Report on Mar 31st, The Lijian-2 Yao-1 carrier rocket, developed by CAS Space, was successfully launched at 19:00 on March 30 from the Dongfeng Commercial Aerospace Innovation Test Zone. It successfully deployed the Xinzhengcheng-01 satellite, Xinzhengcheng-02 satellite, and Tianshi-01 satellite into their predetermined orbits, marking a complete success for the launch mission. The rocket stands 53 meters tall, with a liftoff weight of 625 tons, a liftoff thrust of 753 tons, a payload capacity of 8 tons to a 500-kilometer sun-synchronous orbit, and a payload capacity of 12 tons to a 200-kilometer low Earth orbit.
This mission was the maiden flight of the Lijian-2 carrier rocket and the 12th launch overall for the Lijian series of carrier rockets. The Lijian-2 is China's first carrier rocket designed with a "Universal Booster Core" configuration. It adopts a design philosophy emphasizing universality, combinability, and modularity, with all core stages and boosters having a diameter of 3.35 meters, enabling interchangeability and mutual use under rolling backup conditions. This design allows the rocket to be flexibly configured with 0 to 4 liquid boosters, covering a payload capacity range of 2 to 20 tons to low Earth orbit.
The maiden flight mission primarily validated three key technologies: the application technology of the Universal Booster Core configuration, the design and manufacturing process technology for large-diameter smooth-walled tank structures, and the large fairing flat-separation technology. Lian Jie, Deputy Chief Designer of the Lijian-2, explained that the rocket's tank barrel sections use a smooth-walled structure, significantly reducing manufacturing costs compared to traditional grid-stiffened forms. The fairing employs flat-separation technology, which offers greater internal usable space and higher reliability compared to traditional spin-separation schemes.
Yang Haoliang, Chief Commander of the Lijian-2, stated that the rocket's maiden flight serves a major national aerospace project, marking a significant milestone in the construction of China's new-generation Earth-space cargo transportation system. In the future, the Lijian-2 will serve as one of the main carrier rockets for China's large-scale constellation networking and low-cost cargo missions, supporting tasks such as low-orbit satellite constellation deployment and space station cargo transportation.
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