@techreport{oai:jaxa.repo.nii.ac.jp:00002743, author = {石本, 真二 and 種村, 利春 and 伊藤, 健 and 小笠原, 俊夫 and 元田, 敏和 and 森戸, 俊樹 and 紙田, 徹 and 大野, 正博 and Ishimoto, Shinji and Tanemura, Toshiharu and Ito, Takeshi and Ogasawara, Toshio and Motoda, Toshikazu and Morito, Toshiki and Kamita, Toru and Ono, Masahiro}, month = {Oct}, note = {This paper describes a research plan for reusable launch vehicles. Drastic improvement in vehicle reliability and reduction in space flight costs are expected through realizing reusable systems. Although there are two goals, commonality between expendable and reusable systems is taken account of and priority is given to increasing reliability. From this viewpoint, selected were some key technologies that will be intensively developed during the current medium term (from fiscal 2003 to 2007). This paper also reports the status of key technology research on composite material main structure, and advanced avionics and flight control. Another key item is rocket propulsion, and this is described in a different paper. It is aimed to conduct flight demonstration for the key technologies in the next medium term starting from fiscal 2008., 資料番号: AA0047944012, レポート番号: JAXA-RM-04-009}, title = {総合計画・要素技術の研究}, year = {2004} }