National Aerospace Laboratory Control Systems Division
National Aerospace Laboratory Control Systems Division
National Aerospace Laboratory Airframe Division
National Space Development Agency of Japan
出版者
航空宇宙技術研究所
出版者（英）
National Aerospace Laboratory (NAL)
雑誌名
航空宇宙技術研究所資料
雑誌名(英)
Technical Memorandum of National Aerospace Laboratory
The National Aerospace Laboratory (NAL) and the National Space Development Agency of Japan (NASDA), cooperating in the research and development of an unmanned reentry vehicle named HOPE (H-2 Orbiting Plane), conducted a series of Automatic Landing Flight Experiments (ALFLEX) at Woomera Airfield, Australia. ALFLEX is aimed at demonstrating unmanned automatic landing technology, an evaluating low speed flight characteristics of a vehicle with the HOPE configuration. In these experiments, the experimental vehicle, a 37 percent subscale model of the proposed HOPE configuration, was transported by a helicopter suspended from hanging equipment to a predetermined release point at a height of 1,500 m, and then released at velocity of 45 m/s (90 knots) to land automatically. This report describes the method and the results of measurement of the vehicle's center of gravity position, which was conducted at Woomera Airfield. Special equipment to hang a vehicle is usually necessary for this kind of measurement. In the case of ALFLEX, the test was conducted very simply by utilizing the gimbals installed in the vehicle's fuselage. The deviation of the center of gravity from its design point was a few millimeters in the horizontal plane and about two centimeters in the vertical direction.
小型自動着陸実験機の重心位置推定
naltm0000712.pdf
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