15th Aerodynamic Decelerator Systems Technology Conference 1999
DOI: 10.2514/6.1999-1751
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Parafoil test vehicle ALEX - Further development and flight test results

Abstract: The Institute of Flight Mechanics of the German Aerospace Center (DLR) developed the low-cost technology demonstrator ALEX (Small +.rtonomous Parafoil Landing Experiment) to Investigate GNC-concepts for the autonomous landing of space capsules. The presently finished Phase 2 was dedicated to the full instrumentation of the vehicle to enable autonomous flights in the third phase in 1999. This paper provides details about the components used and discusses recent experience and flight test results.

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Cited by 13 publications
(11 citation statements)
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“…It aimed to identify behavior of a small (200lbs) and extensively instrumented parafoil-based system and to investigate GNC-concepts for the autonomous landing. 29,30 Three and four degree of freedom models were developed and parameters of these models were identified during this study.…”
Section: Introductionmentioning
confidence: 99%
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“…It aimed to identify behavior of a small (200lbs) and extensively instrumented parafoil-based system and to investigate GNC-concepts for the autonomous landing. 29,30 Three and four degree of freedom models were developed and parameters of these models were identified during this study.…”
Section: Introductionmentioning
confidence: 99%
“…22,[29][30][31][32][33] The Parafoil Technology Demonstrator program was set up and conducted under ESA to demonstrate feasibility of guiding a large-scale parafoil autonomously to a predefined point and to perform a flared landing within a specific range. Another objective was to enable further investi-gation into the flight dynamics of the parafoil systems.…”
Section: Introductionmentioning
confidence: 99%
“…A number of efforts have applied aerodynamic parameter identification to airdrop systems [4][5][6][7][8][9][10][11]. Jann et al describe the development of a highly instrumented parafoil and payload research platform, ALEX, incorporating a Global Positioning System (GPS) receiver, magnetometers, rate gyros, accelerometers, air data probes, and video cameras to address the problem of generating enough data for system identification [4].…”
mentioning
confidence: 99%
“…Jann et al describe the development of a highly instrumented parafoil and payload research platform, ALEX, incorporating a Global Positioning System (GPS) receiver, magnetometers, rate gyros, accelerometers, air data probes, and video cameras to address the problem of generating enough data for system identification [4]. With this system, they performed an extensive investigation into the problem of aerodynamic parameter identification for parafoil and payload systems [5][6][7].…”
mentioning
confidence: 99%
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