China Aerospace Science and Technology Corporation (CASC) has successfully executed a pivotal ground test for its next-generation reusable launch vehicle, marking another significant stride in the nation’s ambitious space program. The comprehensive engine test for the Long March 12B’s first-stage booster took place Friday afternoon at the Jiuquan Satellite Launch Center in northwestern China.
During the meticulously orchestrated trial, engineers initiated and sustained ignition of the rocket’s first-stage engines, systematically validating critical procedures including fueling protocols, ignition sequences, and subsequent operational phases. CASC confirmed all systems performed with exceptional stability and precision throughout the testing duration, demonstrating remarkable reliability that establishes a solid foundation for upcoming flight tests.
The Long March 12B represents China’s cutting-edge approach to space transportation, featuring a two-stage configuration with both stages measuring four meters in diameter. Powered by advanced liquid oxygen-kerosene propulsion systems, the vehicle is engineered to deliver payloads weighing up to 20 metric tons to low-Earth orbit. Industry specifications indicate the rocket will stand approximately 70 meters tall with a liftoff mass of around 700 tons when fully fueled.
A defining characteristic of the Long March 12B is its reusable first-stage booster, designed to autonomously return to Earth after separation from the upper stage. The recovery system incorporates grid fins for atmospheric control and landing legs for vertical touchdown at predetermined landing zones, technology reminiscent of advancements pioneered by other spacefaring nations.
This development follows closely after CASC’s December maiden flight of the Long March 12A, the corporation’s inaugural reusable rocket model. While that mission successfully deployed its second-stage booster to the intended orbital position, the first-stage recovery attempt concluded with the booster crashing near the designated landing site in Gansu province. Engineering teams continue to investigate the causes behind the recovery failure to inform future design improvements.









