21st Congress of International Council of the Aeronautical Sciences, Melbourne, Australia, 13-18 September, 1998
Paper ICAS-98-2.11.2

CALIBRATION OF AIR COMBAT SIMULATION MODELS BASED ON PERFORMANCE DATA

Hoffren J., Vilenius J.
Helsinki University of Technology, Finland

Keywords: calibration,air combat, simulation models, performance data

The modelling of high-performance aircraft for air combat simulations has been studied in order to investigate whether a realistic model can be obtained by calibrating a crude basic model by performance data. Simple correction functions of one variable are developed for the thrust and drag using two steady-state performance points, assumed to be known. Test calculations are performed to compare the steady-state performance predictions and simulated dynamic maneuvers given by an uncalibrated and a calibrated model with available reference data. The calibration is found to improve the prediction accuracy, but the simple procedure is of somewhat limited power and sensitive to the data points available.

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