东方空间研制“引力二号”液体火箭，预计今年底具备首飞条件

Core Insights - The event highlighted the innovative developments in the private space industry, particularly focusing on the achievements of Dongfang Space (Shandong) Technology Co., Ltd. in rocket manufacturing and satellite delivery services [1] Group 1: Company Overview - Dongfang Space is a private enterprise that manufactures launch vehicles to deliver various spacecraft into outer space, likened to a courier service but for satellite delivery [1] - The first rocket, "Yinli No. 1," was developed over three years and is set to make its maiden flight on January 11, 2024, from Dongfang Spaceport, becoming the world's largest solid rocket and the largest commercial rocket in China [1] Group 2: Innovations in Rocket Design - The "Yinli" series rockets feature a modular design that standardizes the diameter of the rocket core and boosters, allowing for efficient mass production and flexible configuration based on mission requirements [2] - An innovative inflatable protective cover, akin to a "down jacket" for rockets, replaces traditional metal shielding, significantly reducing costs [2] - The entire assembly, testing, and launch process for "Yinli No. 1" is completed within 5 kilometers of Dongfang Spaceport, enhancing efficiency and enabling a launch frequency of up to once a week [2] Group 3: Future Developments - The second model, "Yinli No. 2," is currently in the design phase and is expected to be ready for its first flight by the end of 2025, featuring a recoverable design with a payload capacity of 15 tons and costs comparable to SpaceX [3] - "Yinli No. 2" aims to meet the demands for large satellite networks and medium to high orbit launches, establishing a competitive position in the international commercial space launch market [3]