Improvement of Stall-Regime Aerodynamics Modeling for Aircraft Training Simulations

Abstract

Upset and Loss-of-Control of aircraft remains one of the leading causes of accidents for commercial and general aviation operations. There are statements in government reports indicating that improved training, particularly in the stall and post-stall flight regime, may help mitigate this situation. Ground-based flight simulators are logical tools to carry out such training. Unfortunately the flight models in these qualified devices are typically not of sufficient fidelity for positive pilot training in these flight regimes. This paper reviews flight simulator requirements associated with the stall and post-stall flight and presents an example of the current level of fidelity of a modern-day device. A model modification process is illustrated that improves flight model fidelity and results are presented. Last, recommendations for improved stall and poststall flight model requirements for flight simulators proposed.