我国首个，海上液体火箭发射回收试验平台将投用

Core Viewpoint - The article highlights the significant advancements in China's commercial space industry, particularly focusing on the construction of the first offshore liquid rocket launch and recovery test platform in Haiyang, Shandong, as part of the national goal to accelerate the establishment of a strong space power [1][2]. Group 1: Offshore Launch Platform Construction - The construction of the offshore liquid rocket launch and recovery test platform is underway at the Dongfang Spaceport in Haiyang, Shandong, marking a milestone in China's commercial space endeavors [2]. - The platform features a hydraulic pit that is seven to eight meters deep, equipped with four hydraulic vertical oil cylinders capable of rotating hundreds of tons of liquid rockets from horizontal to vertical positions for launch [3]. - A 17-meter deep flow channel is designed to direct the high-temperature rocket exhaust during ignition, utilizing a circular spray pipe to quickly cool the exhaust and reduce noise, thereby protecting the launch facilities [5]. Group 2: Operational Timeline and Testing - Over 150 workers are engaged in the construction, aiming to complete the platform and begin testing by around February 5, with a mainstream commercial liquid rocket scheduled for launch and recovery tests shortly after the Spring Festival [7]. - The Dongfang Spaceport has previously conducted 22 offshore launch missions using solid rockets, which, while flexible and mobile, have limitations in payload capacity and recovery [9]. Group 3: Advantages of Liquid Rockets - Liquid rockets offer greater payload capacity and the potential for reuse, significantly reducing satellite network costs, positioning them as the primary focus for domestic commercial space launches [11]. Group 4: Comprehensive Industry Layout - The Dongfang Spaceport is strategically located on an artificial island, approximately 3 kilometers from the mainland, ensuring safety due to the absence of fixed residents [12]. - The facility is designed with multiple functional areas, including a launch and recovery test platform and supporting fuel storage areas for liquid oxygen, liquid nitrogen, kerosene, and methane, essential for liquid rocket operations [14]. - As the only offshore launch mother port in China, the Dongfang Spaceport has successfully launched 137 satellites, contributing to a comprehensive industrial ecosystem in Shandong that integrates offshore launch leadership, collaborative rocket manufacturing, and space application expansion [16].