The flight trials of the ALFLEX (Automatic Landing Flight Experiment) vehicle were successfully concluded on August 15, 1996, at Woomera Airfield in South Australia. The flight trials were held in winter under especially bad weather conditions such as cross winds and tail winds for the AFLEX vehicle approaching runway 18. This paper describes the technique of making flight GO-NOGO decisions according to wind restrictions for ALFLEX trials based on both the wind speed data of Real Time Vector Representation Equipment (RTVRE) of surface wind and analysis of upper surface wind measurements data using OMEGA SONDE and GPS SONDE. It also compares these wind measurement results with the wind speed estimated using ADS and IMU sensors that were onboard the ALFLEX vehicle.
Technique of Flight GO-NOGO Decisions and Results of Analysis Using Wind Measured Data in ALFLEX Flight Trials
1998
36 pages
Report
No indication
English
Dynamic Meteorology , Unmanned Spacecraft , Spacecraft Trajectories & Flight Mechanics , Aeronautics , Wind measurement , Flight tests , Wind velocity , Ground wind , Crosswinds , Wind effects , Meteorological parameters , Aerospace planes , Reentry vehicles , Foreign technology , ALFLEX(Automated Landing Flight Experiment) , Automated Landing Flight Experiment , Surface winds
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|Wind Measurement Result for ALFLEX Flight Trial
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AIAA | 1998
|Simulation analysis of ALFLEX constrained flight
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