The results for the validation of a mathematical model of the Agusta A109 helicopter, and subsequent use of the model as the baseline for a handling qualities study of cockpit centerstick requirements, are described. The technical approach included flight test, non-realtime analysis, and realtime piloted simulation. Results of the validation illustrate a time- and frequency-domain approach to the model and simulator issues. The final A109 model correlates well with the actual aircraft with the Stability Augmentation System (SAS) engaged, but is unacceptable without the SAS because of instability and response coupling at low speeds. Results of the centerstick study support the current U.S. Army handling qualities requirements for centerstick characteristics.
Results of an A109 Simulation Validation and Handling Qualities Study
1989
31 pages
Report
No indication
English
Aircraft , Avionics , Control stability , Flight simulation , Helicopter performance , Mathematical models , Stability augmentation , Controllability , Flight tests , Cockpits , Control simulation , Control sticks , Dynamic response , Frequency distribution , Real time operation , Time functions , Transfer functions
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