The National Aerospace Laboratory and the National Space Development Agency of Japan are collaborating in the development of an unmanned space re-entry system called Hope which is planned for launch by an H-II rocket. The objectives of ALFLEX are to establish the fundamental technology necessary for the landing of HOPE, including the design methodology of the navigation, guidance, and control system, and the evaluation method for the flight experiments using a subscale model. The 37 percent scaled ALFEX vehicle is lifted by a carrier helicopter up to a height of 1,500m and is released at a level speed of 46m/s. Then, relying upon an integrated guidance system, it captures the specified glide slope and lands horizontally on a 1,00m long runway after flaring to shallower glide slopes. This paper describes the results of the ALFLEX system design as of the Preliminary Design.


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    On the Automatic Landing Flight EXperiment (ALFLEX)

    Nakayasu, H. / Nagayasu, M. | British Library Conference Proceedings | 1998


    Automatic Landing Flight Experiment(ALFLEX) Project

    Nagayasu, M. / Nakayasu, H. / Japan Society for Aeronautical and Space Services et al. | British Library Conference Proceedings | 1997