Alflex flight simulation analysis and flight testing

Toshikazu Motoda, Yoshikazu Miyazawa, Kazutoshi Ishikawa, Tatsushi Izumi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)


The Automatic Landing Flight Experiment (ALFLEX) was conducted in Woomera, Australia, in 1996 in order to develop the automatic landing technology required for the future Japanese unmanned spacecraft, HOPE. In order to ensure successful landings, computer simulation played an important role in the preflight analysis. Monte Carlo Simulation was applied for the analysis. The Root Sum Square (RSS) method, which is commonly used in Japanese launcher rocket development projects, was also applied. Monte Carlo results were compared with the RSS results and the flight test results. All 13 flighttests were successfully completed. Longitudinal guidance in the flare phase was found to be sensitive to some modeling-errors. The cause is discussed.

Original languageEnglish
Title of host publication36th AIAA Aerospace Sciences Meeting and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Publication statusPublished - 1998
Externally publishedYes
Event36th AIAA Aerospace Sciences Meeting and Exhibit, 1998 - Reno, United States
Duration: Jan 12 1998Jan 15 1998


Other36th AIAA Aerospace Sciences Meeting and Exhibit, 1998
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Space and Planetary Science


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