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RESULTS OF HIGH-SPEED FLIGHT DEMONSTRATION PHASE Ⅱ

机译：高速飞行演示阶段二的结果

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The High-Speed Flight Demonstration (HSFD) project is the latest in a series of flight experiments in a research program into reusable space transportation systems being conducted by Japan Aerospace Exploration Agency (JAXA). The project consists of two phases: phase Ⅰ to verify an approach and landing system for the terminal phase of the return flight of a winged reentry vehicle, and phase Ⅱ to clarify the transonic aerodynamic characteristics of a winged reentry vehicle. The first phase Ⅱ flight took place on July 1, 2003, at the Esrange test site near Kiruna in Sweden, in collaboration with Centre National d'Etudes Spatiales of France (CNES). Although the experiment had to be discontinued when the demonstrator was damaged after its recovery system malfunctioned, aerodynamic characteristics data were obtained at Mach 0.8 and are being used to evaluate wind tunnel estimates and computational fluid dynamics (CFD) predictions. Fully autonomous flight control technologies for the transonic speed region were also demonstrated. The results are expected to provide essential information for the development of future reusable space transportation systems.
机译：高速飞行演示（HSFD）项目是日本航空航天局（JAXA）对可重复使用的空间运输系统进行研究的一系列飞行实验中的最新项目。该项目包括两个阶段：第一阶段用于验证有翼折返飞行器回程的末期进场和着陆系统，第二阶段是阐明有翼折返飞行器的跨音速空气动力学特性。与法国国家练习曲中心（CNES）合作，第二阶段的第一次飞行于2003年7月1日在瑞典基律纳附近的Esrange试验场进行。尽管当演示器的恢复系统出现故障后损坏演示器时，必须中止该实验，但空气动力学特性数据为0.8马赫，并已用于评估风洞估算和计算流体动力学（CFD）预测。还展示了跨音速区域的全自动飞行控制技术。预期结果将为未来可重复使用的空间运输系统的发展提供必要的信息。

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