Pilot models in full missions simulation of JAS 39 Gripen

Abstract:    This master thesis was performed at the section of Flight Mechanics and Performance at SAAB Aeronautics in Linköping as a part of my Master of Science in Engineering Physics at KTH, Stockholm. The aim of the thesis is to enable desktop simulations of missions from take-off to landing of JAS 39 Gripen. The mission is set up by a series of task to be performed. Each tasks then link to a pilot model that controls the aircraft to perform the given task. The main part of the work has been to create these pilot models as an extension of the work by Ajdén and Backlund presented in [1]. The tasks that are simulated are, take-off, climb, turn, cruise, combat simulation, descent and landing at a given point. In order to perform these tasks both open and closed loop controls are used. To perform the landing first a path planing based on Dubins minimum path is calculated and then the nonlinear guidance logic presented by Park, Desyst and How in \cite{Park4} is implemented and used for trajectory tracking. The results from a simulation of a test mission are presented and shows that mission simulations are possible and that the pilot models perform the intended tasks.