Balked Landing Study

Based on the need to define requirements for the obstacle free zones for the New Large Aircraft, the Obstacle Clearance Panel of ICAO asked for the development of a pilot model capable to simulate the pilot’s control behaviour of a manually flown approach to land and missed approach. The FAA will use the combined pilot-aircraft model as the basis for a Monte Carlo Simulation to determine the aircraft deviations from the nominal flight path under a wide range of atmospheric and operational conditions. Besides being used for the determination of the required dimensions of the obstacle free zones for New Large Aircraft, the models are also envisaged to be applied for the update of the ICAO Collision Risk Model. Two pilot models (of NLR-ATSI and QINETIQ) were developed for the control of the B-747-400 using a dedicated aircraft model from the Boeing Company. The NLR-ATSI pilot model is based on control engineering and is a linear model with visual and motion feedback, extended with stochastic disturbances.

Results of the project have been presented in AIAA 2005-5884: “Pilot Model Development for the Manual Balked Landing Maneuvre” and in RAES Paper number 11 “The Pilot Model Balked Landing Simulation Project: A Government, Industry and National Research Cooperation”, in the Civil & Military Flight Simulator Qualification Conference.