Pilot Model Development for the Manual Balked Landing Maneuvre

Abstract

†‡ Based on the need to set up requir ements for the obstacle free zone for the New Large Aircraft, the Obstacle Clearance Panel of the ICAO asked for the development of a pilot model capable to simulate pilot’s control behavior of a manual flown approach to land and missed approach. The pilot model was developed for the control of the B -747 -400 based on a dedicated aircraft model developed by the Boeing Company. The FAA will use the combined pilot -aircraft model as the basis for a Monte Carlo Simulation to determine the aircraft deviations fro m the nominal flight path under a wide range of atmospheric and operational conditions. Since the first publication of McRuer 16 on models of pilot’s control behavior a wide range of models describing human control behavior have been developed. The present model is based on an extension of McRuer’s work, has visual and vestibular feedback 7,8 and is describing pilot’s control behavior in the inner attitude control loop. For the present application, sub models to describe pilot’s behavior in the outer loops w ere developed. The pilot model is build up into two groups of models for longitudinal and lateral control for the different phases of the missed approach: FD approach, visual segment, flare and de crab, go -around, climb out, and thrust control. The pilot m odel parameters are adjusted for each phase with criteria for tracking performance, control effort and control bandwidth and stability. To match the results of the pilot model with measured pilot performance use is made of the results of a recent Balked La nding Simulator Experiment performed at NASA Ames. The paper will describe the pilot model development, the performance results and the comparison with the experimental results of the NASA Ames simulator study.