@inproceedings{oai:jaxa.repo.nii.ac.jp:00014456, author = {藤田, 和央 and 丸, 祐介 and 宮路, 幸二 and 鈴木, 俊之 and 沢井, 秀次郎 and Fujita, Kazuhisa and Maru, Yusuke and Miyaji, Koji and Suzuki, Toshiyuki and Sawai, Shujiro}, book = {宇宙航行の力学シンポジウム, Symposium on Flight Mechanics and Astrodynamics}, month = {Dec}, note = {宇宙航行の力学シンポジウム(平成20年度)(2008年12月4~5日、宇宙航空研究開発機構宇宙科学研究本部), Symposium on Flight Mechanics and Astrodynamics 2008 (December 4-5, 2008. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)), Sagamihara, Kanagawa Japan, The Balloon-based Operation Vehicle(BOV) originally developed for the micro-gravity experiments is modified as a supersonic flight demonstrator of a sub-scale precooled turbojet engine developed in JAXA. In the supersonic flight demonstration, the vehicle is raised by a high-altitude balloon up to a 40 km altitude and dropped to accelerate the vehicle to a supersonic velocity. To extend the flight time for an engine combustion test in the super sonic environments, the vehicle is redesigned in a wing-body configuration with a main delta wing and movable vertical and horizontal tail wings so that it can be pulled out above an altitude of 5km. As a result, the vehicle is capable of reaching the maximum flight Mach number of 2 with the dynamic pressure of 25 kPa at an altitude of 17km, realizing the engine test time longer than 30 sec. The flight demonstration is currently scheduled in 2009. In this article, an overview of the aerodynamic characteristics of the flight demonstrator and the flight trajectory plan is presented., 資料番号: AA0064729033}, publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)}, title = {Sエンジン飛行実証機 BOV-3の空力性能と軌道計画について}, volume = {平成20年度}, year = {2009} }