JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
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Other TitleLow altitude stationary flight test: Test vehicle and flight test results
Author(jpn)宇宙航空研究開発機構 定点滞空飛行試験実験隊
Author(eng)Low Altitude Stationary Flight Test Team, Japan Aerospace Exploration Agency
Author Affiliation(jpn)宇宙航空研究開発機構
Author Affiliation(eng)Japan Aerospace Exploration Agency
Issue Date2007-03-30
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication date2007-03-30
AbstractA series of flight tests was conducted with the SPF-2 low-altitude stationary flight test vehicle to demonstrate and prove key technologies for Stratospheric PlatForm (SPF) airships while conducting experiments for various missions. The SPF-2 is a 68.4 m long unmanned non-rigid airship that can fly autonomously or be controlled from its ground station through a communication link. Starting with vertical takeoff/landing flights (tethered and non-tethered) over the ground handling area, the flight test vehicle made a total of eight flights. In the last three tests, autonomous geostationary flights were made, including the successful gathering of earth environment and traffic observations at altitudes of approximately 900 m and 2 km, and telecommunications and broadcasting missions at and near 4 km. This report on SPF-2 flight tests begins with an overview of the project, followed by descriptions of: (1) the systems that constitute the vehicle; (2) various tests conducted in the course of SPF-2 development including system integration with the tracking and command system; (3) tasks undertaken from planning to testing stages; (4) flight test results in each technical field. The structure of the hull envelope, made of high-technology thin membrane materials, remained sound throughout the testing program, confirming its operational reliability and safety. Buoyancy control and thermal management were effective in real flight from sea level to 4 km altitude, and it was confirmed that the control and guidance laws were adequate. In summary, the development of the SPF-2 was successful, with the objectives fully achieved.
DescriptionJAXA Research and Development Report
Keywordsstratospheric platform airship; stratosphere; stationary flight test; balloon flight; balloon sounding; high altitude balloon; aerodynamic force; aerodynamic characteristic; aerodynamic drag; autonomous navigation; 成層圏プラットフォーム飛行船; 成層圏; 定点飛行試験; 気球飛翔; 気球観測; 高高度気球; 空気力; 空力特性; 空力抵抗; 自律航法
Document TypeTechnical Report
JAXA Category研究開発報告
Report NoJAXA-RR-06-010

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